The William & Flora Hewlett Foundation
The information below highlights Big Green, Inc. funding from specific grantmakers.
back to grantmakersThe William & Flora Hewlett Foundation
The William & Flora Hewlett Foundation
$2.79 BILLION
IN GRANTS
33
STATES
13
ISSUES
390
RECIPIENTS
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Details
| Grant Maker | Recipient | Issue | Amount | Year | State |
|---|---|---|---|---|---|
| The William and Flora Hewlett Foundation | Grand Canyon Trust | Climate change | $70,000 | 2010 | AZ |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | Climate change | $50,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | Climate change | $50,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | Climate change | $85,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | Climate change | $85,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | Climate change | $75,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | Climate change | $25,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | California Academy of Sciences | Climate change | $40,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | California Black Chamber of Commerce Foundation | Climate change | $35,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | California League of Conservation Voters | Climate change | $250,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | California League of Conservation Voters | Climate change | $225,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | California Medical Association Foundation | Climate change | $75,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | CALSTART | Climate change | $175,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Catholic Charities of the Diocese of Stockton | Climate change | $35,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Catholic Charities of the Diocese of Stockton | Climate change | $15,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Catholic Charities of the Diocese of Stockton | Climate change | $65,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Catholic Charities of the Diocese of Stockton | Climate change | $60,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Catholic Charities of the Diocese of Stockton | Climate change | $10,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Catholic Charities of the Diocese of Stockton | Climate change | $65,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Center for Community Action and Environmental Justice | Climate change | $100,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Center for Community Action and Environmental Justice | Climate change | $75,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Center for Community Action and Environmental Justice | Climate change | $85,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Center for Community Action and Environmental Justice | Climate change | $65,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Center for Community Action and Environmental Justice | Climate change | $137,500 | 2009 | CA |
| The William and Flora Hewlett Foundation | Center for Energy Efficiency and Renewable Technologies | Climate change | $100,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | Climate change | $100,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | Climate change | $100,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | Climate change | $85,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | Climate change | $85,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | Climate change | $85,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | Climate change | $85,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Charles R. Drew University of Medicine and Science | Climate change | $25,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Climate Action Reserve | Climate change | $140,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Climate Policy Initiative | Climate change | $1,000,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $2,200,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $2,000,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $1,250,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $250,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $2,000,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $1,750,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $1,700,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $500,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $2,000,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $150,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $150,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $150,000,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $350,000,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $50,000,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $400,000,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $61,095,182 | 2008 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | Climate change | $242,500 | 2015 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | Climate change | $125,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | COFEM | Climate change | $100,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | COFEM | Climate change | $50,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | Climate change | $150,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | Climate change | $20,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | Climate change | $100,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | Climate change | $90,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | Climate change | $50,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | Climate change | $37,500 | 2009 | CA |
| The William and Flora Hewlett Foundation | Community Partners | Climate change | $50,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Community Partners | Climate change | $43,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | Climate change | $15,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | Climate change | $30,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | Climate change | $15,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | Climate change | $20,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Earthjustice | Climate change | $1,125,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | East Bay Community Foundation | Climate change | $75,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | East Bay Community Foundation | Climate change | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Economic Development Corporation of Los Angeles | Climate change | $100,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Economic Development Corporation of Los Angeles | Climate change | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Ella Baker Center for Human Rights | Climate change | $25,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $8,400,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $500,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $3,600,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $6,000,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $7,099,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $3,500,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $3,500,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $6,600,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $8,100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $7,000,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $3,565,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Climate change | $2,000,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Energy Innovation | Climate change | $250,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Climate change | $1,500,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Climate change | $150,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Climate change | $300,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Climate change | $100,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Climate change | $100,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Climate change | $100,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Environmental Health Coalition | Climate change | $45,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Environmental Health Coalition | Climate change | $45,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Fresno Metropolitan Ministry | Climate change | $75,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Fresno Metropolitan Ministry | Climate change | $80,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Fresno Metropolitan Ministry | Climate change | $75,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Fresno Metropolitan Ministry | Climate change | $80,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Fresno Metropolitan Ministry | Climate change | $55,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Fresno-Madera Medical Society | Climate change | $75,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Fresno-Madera Medical Society | Climate change | $75,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Green for All | Climate change | $57,789 | 2009 | CA |
| The William and Flora Hewlett Foundation | Greenlining Institute | Climate change | $35,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Healthy African American Families | Climate change | $50,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Indian Dispute Resolution Services | Climate change | $100,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Innovation Center for Energy and Transportation | Climate change | $300,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Institute for Sustainable Economic, Educational and Environmental Design | Climate change | $300,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Institute for Sustainable Economic, Educational and Environmental Design | Climate change | $300,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | International Sustainable Systems Research Center | Climate change | $250,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | International Sustainable Systems Research Center | Climate change | $50,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | International Sustainable Systems Research Center | Climate change | $68,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | International Sustainable Systems Research Center | Climate change | $125,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | International Sustainable Systems Research Center | Climate change | $50,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Latino Issues Forum | Climate change | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Liberty Hill Foundation | Climate change | $40,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Liberty Hill Foundation | Climate change | $45,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Liberty Hill Foundation | Climate change | $45,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Liberty Hill Foundation | Climate change | $55,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Liberty Hill Foundation | Climate change | $30,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Liberty Hill Foundation | Climate change | $70,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Local Government Commission | Climate change | $40,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Los Angeles Alliance for a New Economy | Climate change | $75,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Los Angeles Alliance for a New Economy | Climate change | $110,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Los Angeles Alliance for a New Economy | Climate change | $50,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Los Angeles Alliance for a New Economy | Climate change | $150,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Los Angeles Alliance for a New Economy | Climate change | $45,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Los Angeles Alliance for a New Economy | Climate change | $20,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Los Angeles Alliance for a New Economy | Climate change | $60,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Natural Capital Institute | Climate change | $150,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Climate change | $2,000,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Climate change | $579,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Climate change | $40,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Climate change | $30,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Climate change | $37,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Climate change | $25,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Climate change | $65,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Climate change | $37,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Non-Profit Housing Association of Northern California | Climate change | $60,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Non-Profit Housing Association of Northern California | Climate change | $75,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Non-Profit Housing Association of Northern California | Climate change | $85,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Occidental Arts and Ecology Center | Climate change | $15,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Patient Care Foundation of Los Angeles County | Climate change | $55,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Patient Care Foundation of Los Angeles County | Climate change | $45,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Public Health Institute | Climate change | $100,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Public Health Institute | Climate change | $120,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Public Health Institute | Climate change | $100,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Public Health Institute | Climate change | $120,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Public Health Institute | Climate change | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Public Policy Institute of California | Climate change | $100,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Public Policy Institute of California | Climate change | $120,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Public Policy Institute of California | Climate change | $160,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Public Policy Institute of California | Climate change | $140,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Public Policy Institute of California | Climate change | $433,333 | 2008 | CA |
| The William and Flora Hewlett Foundation | Radio Bilingue | Climate change | $55,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Radio Bilingue | Climate change | $55,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Climate change | $750,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Resource Media | Climate change | $225,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Climate change | $400,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Climate change | $340,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Climate change | $340,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $42,484 | 2012 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $60,693 | 2011 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $42,484 | 2011 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $103,177 | 2010 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $103,177 | 2009 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $26,300 | 2009 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Climate change | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | San Francisco Foundation | Climate change | $400,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | San Francisco Foundation | Climate change | $450,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Climate change | $150,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Climate change | $595,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Climate change | $220,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Climate change | $150,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Climate change | $115,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Climate change | $120,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Climate change | $115,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Climate change | $120,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Climate change | $55,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Climate change | $55,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Climate change | $55,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Climate change | $55,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Stanford University | Climate change | $50,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Stanford University | Climate change | $255,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Stanford University | Climate change | $159,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Tides Foundation | Climate change | $110,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Tides Foundation | Climate change | $30,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | TransForm | Climate change | $200,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | TransForm | Climate change | $150,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | TransForm | Climate change | $132,800 | 2012 | CA |
| The William and Flora Hewlett Foundation | TransForm | Climate change | $700,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | TransForm | Climate change | $300,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | TransForm | Climate change | $350,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | TransForm | Climate change | $200,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Transportation and Land Use Coalition | Climate change | $450,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Trust for Conservation Innovation | Climate change | $200,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Trust for Conservation Innovation | Climate change | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Climate change | $725,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Climate change | $725,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | University of Southern California | Climate change | $75,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | University of Southern California | Climate change | $150,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | University of Southern California | Climate change | $185,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | University of Southern California | Climate change | $150,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | University of Southern California | Climate change | $60,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Urban Habitat | Climate change | $50,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Urban Habitat | Climate change | $85,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Urban Habitat | Climate change | $85,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Women's Foundation of California | Climate change | $14,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Colorado Environmental Coalition | Climate change | $200,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Colorado Environmental Coalition | Climate change | $150,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Colorado Environmental Coalition | Climate change | $150,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | Colorado Environmental Coalition | Climate change | $150,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Natural Capitalism Solutions | Climate change | $100,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Public Counsel of the Rockies | Climate change | $300,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Southwest Energy Efficiency Project | Climate change | $150,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Southwest Energy Efficiency Project | Climate change | $150,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Southwest Energy Efficiency Project | Climate change | $320,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Southwest Energy Efficiency Project | Climate change | $16,500 | 2008 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Climate change | $59,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Climate change | $1,000,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Yale University | Climate change | $250,000 | 2009 | CT |
| The William and Flora Hewlett Foundation | Yale University | Climate change | $105,000 | 2009 | CT |
| The William and Flora Hewlett Foundation | Yale University | Climate change | $250,000 | 2008 | CT |
| The William and Flora Hewlett Foundation | Yale University | Climate change | $25,000 | 2008 | CT |
| The William and Flora Hewlett Foundation | African Center for Economic Transformation | Climate change | $800,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | African Center for Economic Transformation | Climate change | $450,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | African Center for Economic Transformation | Climate change | $190,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | American Bar Association | Climate change | $35,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | American Bar Association | Climate change | $35,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | American Council for an Energy-Efficient Economy | Climate change | $100,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | American Council for an Energy-Efficient Economy | Climate change | $120,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | American Lung Association | Climate change | $850,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | American Lung Association | Climate change | $500,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | American Lung Association | Climate change | $500,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | American Lung Association | Climate change | $600,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | American Lung Association | Climate change | $400,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | American Lung Association | Climate change | $75,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $1,250,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $1,000,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $1,500,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $1,500,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $400,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $2,000,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $2,000,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $6,288,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $2,000,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $4,370,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $2,630,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Climate change | $2,000,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Breakthrough Technologies Institute | Climate change | $82,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Breakthrough Technologies Institute | Climate change | $95,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Brookings Institution | Climate change | $725,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Brookings Institution | Climate change | $200,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Business Forward Foundation | Climate change | $100,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Carnegie Endowment for International Peace | Climate change | $500,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Carnegie Endowment for International Peace | Climate change | $200,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Carnegie Endowment for International Peace | Climate change | $240,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Center for American Progress | Climate change | $250,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Center for Clean Air Policy | Climate change | $40,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Center for Clean Air Policy | Climate change | $400,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Center for Strategic and International Studies | Climate change | $180,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Center for the National Interest | Climate change | $200,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Center for the National Interest | Climate change | $200,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Center for the National Interest | Climate change | $40,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Christian Coalition | Climate change | $300,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Christian Coalition | Climate change | $300,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Christian Coalition | Climate change | $100,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Climate change | $1,750,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Constitutional Accountability Center | Climate change | $50,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Constitutional Accountability Center | Climate change | $50,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Constitutional Accountability Center | Climate change | $50,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Constitutional Accountability Center | Climate change | $100,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Earth Day Network | Climate change | $120,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Earthworks | Climate change | $150,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Earthworks | Climate change | $100,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Energy Futures Initiative | Climate change | $750,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Fenton Communications | Climate change | $195,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Georgetown University | Climate change | $530,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Georgetown University | Climate change | $300,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Georgetown University | Climate change | $115,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | German Marshall Fund of the United States | Climate change | $300,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Global Witness Foundation | Climate change | $250,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Institute for Governance and Sustainable Development | Climate change | $750,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Institute for Governance and Sustainable Development | Climate change | $200,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Institute for Governance and Sustainable Development | Climate change | $300,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Institute for Governance and Sustainable Development | Climate change | $200,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | International Initiative for Impact Evaluation | Climate change | $215,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | League of Conservation Voters | Climate change | $600,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | National Academy of Sciences | Climate change | $400,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $600,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $400,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $1,000,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $850,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $200,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $2,750,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $2,150,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $800,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $27,500 | 2013 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $2,000,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $650,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $650,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $250,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $200,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $150,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $2,000,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $2,000,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $600,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $100,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $100,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $400,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $200,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Niskanen Center | Climate change | $200,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Niskanen Center for Public Policy | Climate change | $200,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Oceana | Climate change | $1,000,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Oil Change International | Climate change | $150,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Oil Change International | Climate change | $150,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Oil Change International | Climate change | $100,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Climate change | $1,300,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Climate change | $700,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Climate change | $1,300,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Climate change | $500,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Climate change | $2,500,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Climate change | $300,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Climate change | $2,535,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Climate change | $3,000,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Population Reference Bureau | Climate change | $350,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | R Street Institute | Climate change | $275,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | R Street Institute | Climate change | $200,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Resolve Inc | Climate change | $40,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Securing America's Future Energy Foundation | Climate change | $100,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | Taxpayers for Common Sense | Climate change | $125,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Climate change | $400,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Climate change | $600,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Climate change | $762,500 | 2011 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Climate change | $200,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Climate change | $150,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Climate change | $200,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Climate change | $200,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Climate change | $150,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Climate change | $250,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Climate change | $200,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Truman National Security Project Educational Institute | Climate change | $200,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Climate change | $1,250,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Climate change | $960,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Climate change | $480,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Climate change | $400,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | World Resources Institute | Climate change | $306,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | World Resources Institute | Climate change | $200,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | World Resources Institute | Climate change | $200,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | World Resources Institute | Climate change | $82,102 | 2013 | DC |
| The William and Flora Hewlett Foundation | Southeast Energy Efficiency Alliance | Climate change | $100,000 | 2013 | GA |
| The William and Flora Hewlett Foundation | Southeast Energy Efficiency Alliance | Climate change | $100,000 | 2012 | GA |
| The William and Flora Hewlett Foundation | Southeast Energy Efficiency Alliance | Climate change | $100,000 | 2011 | GA |
| The William and Flora Hewlett Foundation | Environmental Law and Policy Center of the Midwest | Climate change | $200,000 | 2009 | IL |
| The William and Flora Hewlett Foundation | Sargent Shriver National Center on Poverty Law | Climate change | $25,000 | 2010 | IL |
| The William and Flora Hewlett Foundation | Boston Critic | Climate change | $50,000 | 2008 | MA |
| The William and Flora Hewlett Foundation | CERES | Climate change | $250,000 | 2014 | MA |
| The William and Flora Hewlett Foundation | Clean Air Task Force | Climate change | $200,000 | 2016 | MA |
| The William and Flora Hewlett Foundation | Clean Air Task Force | Climate change | $45,000 | 2014 | MA |
| The William and Flora Hewlett Foundation | Clean Air Task Force | Climate change | $100,000 | 2009 | MA |
| The William and Flora Hewlett Foundation | Clean Air Task Force | Climate change | $100,000 | 2008 | MA |
| The William and Flora Hewlett Foundation | Conservation Law Foundation | Climate change | $150,000 | 2014 | MA |
| The William and Flora Hewlett Foundation | Health Effects Institute | Climate change | $200,000 | 2015 | MA |
| The William and Flora Hewlett Foundation | Health Effects Institute | Climate change | $170,000 | 2015 | MA |
| The William and Flora Hewlett Foundation | Health Effects Institute | Climate change | $160,000 | 2014 | MA |
| The William and Flora Hewlett Foundation | Health Effects Institute | Climate change | $250,000 | 2013 | MA |
| The William and Flora Hewlett Foundation | Health Effects Institute | Climate change | $250,000 | 2012 | MA |
| The William and Flora Hewlett Foundation | Health Effects Institute | Climate change | $250,000 | 2012 | MA |
| The William and Flora Hewlett Foundation | Health Effects Institute | Climate change | $500,000 | 2011 | MA |
| The William and Flora Hewlett Foundation | National Religious Partnership for the Environment | Climate change | $700,000 | 2009 | MA |
| The William and Flora Hewlett Foundation | National Religious Partnership for the Environment | Climate change | $600,000 | 2008 | MA |
| The William and Flora Hewlett Foundation | Northeast States Center for a Clean Air Future | Climate change | $340,000 | 2010 | MA |
| The William and Flora Hewlett Foundation | Northeast States Center for a Clean Air Future | Climate change | $340,000 | 2009 | MA |
| The William and Flora Hewlett Foundation | Northeast States Center for a Clean Air Future | Climate change | $170,000 | 2008 | MA |
| The William and Flora Hewlett Foundation | Oxfam America | Climate change | $161,000 | 2017 | MA |
| The William and Flora Hewlett Foundation | Tufts College | Climate change | $250,000 | 2017 | MA |
| The William and Flora Hewlett Foundation | Union of Concerned Scientists | Climate change | $333,333 | 2013 | MA |
| The William and Flora Hewlett Foundation | NAACP | Climate change | $400,000 | 2017 | MD |
| The William and Flora Hewlett Foundation | NAACP | Climate change | $435,000 | 2016 | MD |
| The William and Flora Hewlett Foundation | NAACP | Climate change | $250,000 | 2013 | MD |
| The William and Flora Hewlett Foundation | University of Maryland - College Park | Climate change | $50,000 | 2015 | MD |
| The William and Flora Hewlett Foundation | Michigan League of Conservation Voters | Climate change | $45,000 | 2013 | MI |
| The William and Flora Hewlett Foundation | Michigan Public Health Association | Climate change | $100,000 | 2013 | MI |
| The William and Flora Hewlett Foundation | Blue Green Alliance Foundation | Climate change | $600,000 | 2015 | MN |
| The William and Flora Hewlett Foundation | Blue Green Alliance Foundation | Climate change | $125,000 | 2014 | MN |
| The William and Flora Hewlett Foundation | Great Plains Institute for Sustainable Development | Climate change | $1,500,000 | 2016 | MN |
| The William and Flora Hewlett Foundation | Great Plains Institute for Sustainable Development | Climate change | $708,250 | 2015 | MN |
| The William and Flora Hewlett Foundation | Great Plains Institute for Sustainable Development | Climate change | $290,750 | 2015 | MN |
| The William and Flora Hewlett Foundation | Western Organization of Resource Councils | Climate change | $300,000 | 2013 | MT |
| The William and Flora Hewlett Foundation | Western Organization of Resource Councils | Climate change | $200,000 | 2011 | MT |
| The William and Flora Hewlett Foundation | GreenFaith | Climate change | $1,000,000 | 2017 | NJ |
| The William and Flora Hewlett Foundation | Nevada Wilderness Project | Climate change | $50,000 | 2012 | NV |
| The William and Flora Hewlett Foundation | Nevada Wilderness Project | Climate change | $50,000 | 2011 | NV |
| The William and Flora Hewlett Foundation | Asia Society | Climate change | $225,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Columbia University | Climate change | $200,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | Columbia University | Climate change | $200,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | Columbia University | Climate change | $100,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Columbia University | Climate change | $100,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | Columbia University | Climate change | $100,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | Columbia University | Climate change | $100,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | International Senior Lawyers Corporation | Climate change | $130,000 | 2014 | NY |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Climate change | $200,000 | 2015 | NY |
| The William and Flora Hewlett Foundation | New York University | Climate change | $400,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | New York University | Climate change | $300,000 | 2015 | NY |
| The William and Flora Hewlett Foundation | New York University | Climate change | $200,000 | 2014 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Brothers Fund | Climate change | $600,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Brothers Fund | Climate change | $1,500,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Brothers Fund | Climate change | $650,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Brothers Fund | Climate change | $1,500,000 | 2015 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Brothers Fund | Climate change | $1,500,000 | 2014 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Family Fund | Climate change | $250,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Family Fund | Climate change | $100,000 | 2013 | NY |
| The William and Flora Hewlett Foundation | United Nations Foundation | Climate change | $300,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | West Harlem Environmental Action | Climate change | $200,000 | 2015 | NY |
| The William and Flora Hewlett Foundation | Wildlife Conservation Society | Climate change | $70,000 | 2013 | NY |
| The William and Flora Hewlett Foundation | Institute for Energy Economics and Financial Analysis | Climate change | $250,000 | 2015 | OH |
| The William and Flora Hewlett Foundation | State of Utah | Climate change | $85,000 | 2009 | UT |
| The William and Flora Hewlett Foundation | State of Utah | Climate change | $200,000 | 2008 | UT |
| The William and Flora Hewlett Foundation | State of Utah | Climate change | $65,000 | 2008 | UT |
| The William and Flora Hewlett Foundation | Center for Climate and Energy Solutions | Climate change | $100,000 | 2017 | VA |
| The William and Flora Hewlett Foundation | Center for Climate and Energy Solutions | Climate change | $50,000 | 2017 | VA |
| The William and Flora Hewlett Foundation | Global Environment and Technology Foundation | Climate change | $100,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Global Environment and Technology Foundation | Climate change | $100,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Global Environment and Technology Foundation | Climate change | $100,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Health Care Without Harm | Climate change | $140,000 | 2013 | VA |
| The William and Flora Hewlett Foundation | Strategies for the Global Environment | Climate change | $150,000 | 2016 | VA |
| The William and Flora Hewlett Foundation | Climate Solutions | Climate change | $120,000 | 2012 | WA |
| The William and Flora Hewlett Foundation | Climateworks Foundation | Climate change | $10,000,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Climateworks Foundation | Climate change | $1,750,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Climateworks Foundation | Climate change | $1,000,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Environmental Health Coalition | Climate change | $100,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | The Energy Foundation | Climate change | $15,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | The Energy Foundation | Climate change | $100,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | The Energy Foundation | Climate change | $250,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | TransformCa | Climate change | $200,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Tsinghua Education Foundation | Climate change | $200,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Alliance for Climate Education | Climate change | $100,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Aspen Global Change Institute | Climate change | $150,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Clean Energy Credit Union | Climate change | $150,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Business Forward Foundation | Climate change | $50,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Conservation International | Climate change | $350,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $400,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $600,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Climate change | $500,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Climate change | $1,000,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Climate change | $200,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | The Niskanen Center | Climate change | $100,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Climate change | $63,250 | 2018 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Climate change | $185,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Climate change | $250,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | World Resources Institute | Climate change | $190,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | World Resources Institute | Climate change | $300,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | World Wildlife Fund | Climate change | $75,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | World Wildlife Fund | Climate change | $300,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Jeremy and Hannelore Grantham Environmental Trust | Climate change | $10,000,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | Massachusetts Institute of Technology | Climate change | $250,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | OxfamAmerica | Climate change | $180,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | OxfamAmerica | Climate change | $100,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | Trustees of Tufts College | Climate change | $200,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | National Association for the Advancement of Colored People | Climate change | $400,000 | 2018 | MD |
| The William and Flora Hewlett Foundation | National Association for the Advancement of Colored People | Climate change | $100,000 | 2018 | MD |
| The William and Flora Hewlett Foundation | Climate Conservation | Climate change | $400,000 | 2018 | MT |
| The William and Flora Hewlett Foundation | Croatan Institute | Climate change | $25,000 | 2018 | NC |
| The William and Flora Hewlett Foundation | Greenfaith 101 | Climate change | $1,000,000 | 2018 | NJ |
| The William and Flora Hewlett Foundation | Aligned Intermediary | Climate change | $30,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Behavioral Ideas Lab | Climate change | $475,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Brothers Fund | Climate change | $1,500,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Trustees of Columbia University | Climate change | $125,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Center for Climate and Energy Solutions | Climate change | $250,000 | 2018 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Climate change | $125,000 | 2018 | VA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Coal | $250,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Coal | $1,000,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Coal | $1,060,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Coal | $1,000,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Coal | $1,000,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Coal | $200,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Coal | $800,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Coal | $800,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Coal | $800,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Public Counsel of the Rockies | Coal | $150,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | Public Counsel of the Rockies | Coal | $150,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | Public Counsel of the Rockies | Coal | $150,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Public Counsel of the Rockies | Coal | $150,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Center for American Progress | Coal | $300,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Environmental Integrity Project | Coal | $75,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Greenpeace Fund | Coal | $1,000,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | World Resources Institute | Coal | $200,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | World Resources Institute | Coal | $58,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Environmental Law and Policy Center of the Midwest | Coal | $250,000 | 2017 | IL |
| The William and Flora Hewlett Foundation | Conservation Law Foundation | Coal | $100,000 | 2012 | MA |
| The William and Flora Hewlett Foundation | Conservation Law Foundation | Coal | $100,000 | 2011 | MA |
| The William and Flora Hewlett Foundation | Conservation Law Foundation | Coal | $100,000 | 2011 | MA |
| The William and Flora Hewlett Foundation | Health Effects Institute | Coal | $200,000 | 2014 | MA |
| The William and Flora Hewlett Foundation | President and Fellows of Harvard College | Coal | $150,000 | 2016 | MA |
| The William and Flora Hewlett Foundation | Union of Concerned Scientists | Coal | $200,000 | 2011 | MA |
| The William and Flora Hewlett Foundation | Union of Concerned Scientists | Coal | $200,000 | 2011 | MA |
| The William and Flora Hewlett Foundation | NAACP | Coal | $50,000 | 2015 | MD |
| The William and Flora Hewlett Foundation | NAACP | Coal | $350,000 | 2014 | MD |
| The William and Flora Hewlett Foundation | Western Organization of Resource Councils | Coal | $450,000 | 2016 | MT |
| The William and Flora Hewlett Foundation | Western Organization of Resource Councils | Coal | $200,000 | 2015 | MT |
| The William and Flora Hewlett Foundation | Western Organization of Resource Councils | Coal | $250,000 | 2014 | MT |
| The William and Flora Hewlett Foundation | SouthWest Organizing Project | Coal | $50,000 | 2014 | NM |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | Coal | $200,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | Southern Alliance for Clean Energy | Coal | $150,000 | 2014 | TN |
| The William and Flora Hewlett Foundation | Southern Alliance for Clean Energy | Coal | $150,000 | 2012 | TN |
| The William and Flora Hewlett Foundation | Southern Alliance for Clean Energy | Coal | $150,000 | 2012 | TN |
| The William and Flora Hewlett Foundation | Southern Alliance for Clean Energy | Coal | $100,000 | 2011 | TN |
| The William and Flora Hewlett Foundation | Southern Alliance for Clean Energy | Coal | $100,000 | 2010 | TN |
| The William and Flora Hewlett Foundation | Southern Alliance for Clean Energy | Coal | $100,000 | 2010 | TN |
| The William and Flora Hewlett Foundation | Climate Solutions | Coal | $175,000 | 2011 | WA |
| The William and Flora Hewlett Foundation | Alaska Conservation Foundation | Conservation | $100,000 | 2011 | AK |
| The William and Flora Hewlett Foundation | Alaska Conservation Foundation | Conservation | $100,000 | 2010 | AK |
| The William and Flora Hewlett Foundation | Alaska Conservation Foundation | Conservation | $100,000 | 2010 | AK |
| The William and Flora Hewlett Foundation | Alaska Conservation Foundation | Conservation | $200,000 | 2009 | AK |
| The William and Flora Hewlett Foundation | Alaska Conservation Foundation | Conservation | $287,500 | 2008 | AK |
| The William and Flora Hewlett Foundation | Southeast Alaska Conservation Council | Conservation | $100,000 | 2010 | AK |
| The William and Flora Hewlett Foundation | Southeast Alaska Conservation Council | Conservation | $150,000 | 2009 | AK |
| The William and Flora Hewlett Foundation | Southeast Alaska Conservation Council | Conservation | $100,000 | 2009 | AK |
| The William and Flora Hewlett Foundation | Southeast Alaska Conservation Council | Conservation | $150,000 | 2008 | AK |
| The William and Flora Hewlett Foundation | Grand Canyon Trust | Conservation | $500,000 | 2016 | AZ |
| The William and Flora Hewlett Foundation | Sonoran Institute | Conservation | $300,000 | 2016 | AZ |
| The William and Flora Hewlett Foundation | Sonoran Institute | Conservation | $75,000 | 2010 | AZ |
| The William and Flora Hewlett Foundation | Sonoran Institute | Conservation | $70,000 | 2009 | AZ |
| The William and Flora Hewlett Foundation | Association of Bay Area Governments | Conservation | $50,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | California League of Conservation Voters | Conservation | $150,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Conservation | $3,600,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Community Initiatives | Conservation | $250,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Earth Island Institute | Conservation | $50,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Earth Island Institute | Conservation | $100,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Earth Island Institute | Conservation | $50,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Indian Dispute Resolution Services | Conservation | $100,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Peninsula Open Space Trust | Conservation | $100,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | People for Open Space | Conservation | $220,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | People for Open Space | Conservation | $200,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | People for Open Space | Conservation | $200,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $30,000,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $1,700,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $1,300,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $600,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $600,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $500,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $160,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $100,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $60,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $40,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Conservation | $300,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Resource Media | Conservation | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $55,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $1,000,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $400,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $42,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $200,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Conservation | $250,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | San Francisco Parks Alliance | Conservation | $200,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Save San Francisco Bay Association | Conservation | $100,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Save San Francisco Bay Association | Conservation | $67,500 | 2012 | CA |
| The William and Flora Hewlett Foundation | Save San Francisco Bay Association | Conservation | $50,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Conservation | $300,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Conservation | $10,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Truckee Donner Land Trust | Conservation | $250,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Trust for Conservation Innovation | Conservation | $30,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $450,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $450,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $490,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $450,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $725,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $450,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $450,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $200,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $100,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $450,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $200,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $100,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $1,450,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $625,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $250,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Conservation | $250,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Colorado College | Conservation | $175,000 | 2015 | CO |
| The William and Flora Hewlett Foundation | Colorado Conservation Trust | Conservation | $220,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Colorado Conservation Voters Education Fund | Conservation | $200,000 | 2015 | CO |
| The William and Flora Hewlett Foundation | Colorado Conservation Voters Education Fund | Conservation | $200,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | Conservation Colorado | Conservation | $200,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Conservation Colorado | Conservation | $200,000 | 2016 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | Conservation | $650,000 | 2016 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | Conservation | $800,000 | 2015 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | Conservation | $175,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | Keystone Center | Conservation | $100,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Partners for Conservation | Conservation | $100,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Public Counsel of the Rockies | Conservation | $85,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | Conservation | $3,500,000 | 2015 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | Conservation | $650,000 | 2015 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | Conservation | $250,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | Conservation | $100,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Conservation | $685,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Conservation | $215,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Conservation | $660,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Conservation | $215,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Conservation | $875,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Conservation | $450,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Alaska Wilderness League | Conservation | $200,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Alaska Wilderness League | Conservation | $200,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Alaska Wilderness League | Conservation | $200,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Alaska Wilderness League | Conservation | $400,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Alaska Wilderness League | Conservation | $250,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Defenders of Wildlife | Conservation | $250,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Defenders of Wildlife | Conservation | $250,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Land Trust Alliance | Conservation | $75,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | League of Conservation Voters | Conservation | $150,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | League of Conservation Voters | Conservation | $550,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | League of Conservation Voters | Conservation | $150,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | League of Conservation Voters Education Fund | Conservation | $150,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | National Parks Conservation Association | Conservation | $100,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | National Parks Conservation Association | Conservation | $100,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | National Parks Conservation Association | Conservation | $50,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | National Parks Conservation Association | Conservation | $150,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | National Wildlife Refuge Association | Conservation | $100,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | National Wildlife Refuge Association | Conservation | $50,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Conservation | $200,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Conservation | $23,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Conservation | $400,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Conservation | $300,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Conservation | $50,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Conservation | $450,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Conservation | $400,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Oceana | Conservation | $1,000,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Partnership Project | Conservation | $500,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Society for Conservation Biology | Conservation | $150,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Society for Conservation Biology | Conservation | $150,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Conservation | $825,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Conservation | $750,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Conservation | $1,400,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Conservation | $465,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Conservation | $1,600,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Conservation | $30,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Conservation | $600,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Conservation | $30,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Conservation | $600,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Conservation | $600,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | World Wildlife Fund | Conservation | $150,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Idaho Conservation League | Conservation | $50,000 | 2015 | ID |
| The William and Flora Hewlett Foundation | Backcountry Hunters and Anglers | Conservation | $100,000 | 2017 | MT |
| The William and Flora Hewlett Foundation | Backcountry Hunters and Anglers | Conservation | $100,000 | 2015 | MT |
| The William and Flora Hewlett Foundation | Backcountry Hunters and Anglers | Conservation | $100,000 | 2015 | MT |
| The William and Flora Hewlett Foundation | Climate Conservation | Conservation | $37,500 | 2016 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | Conservation | $425,000 | 2017 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | Conservation | $425,000 | 2016 | MT |
| The William and Flora Hewlett Foundation | Headwaters Economics | Conservation | $210,000 | 2015 | MT |
| The William and Flora Hewlett Foundation | Montana Wilderness Association | Conservation | $100,000 | 2016 | MT |
| The William and Flora Hewlett Foundation | Montana Wilderness Association | Conservation | $100,000 | 2015 | MT |
| The William and Flora Hewlett Foundation | Western Organization of Resource Councils | Conservation | $250,000 | 2015 | MT |
| The William and Flora Hewlett Foundation | Audubon Society, National | Conservation | $137,500 | 2017 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | Conservation | $75,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | Conservation | $137,500 | 2016 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | Conservation | $137,000 | 2014 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | Conservation | $187,500 | 2011 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | Conservation | $87,500 | 2011 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | Conservation | $100,000 | 2010 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | Conservation | $300,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | Conservation | $100,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | Conservation | $50,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Conservation | $125,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Conservation | $350,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Conservation | $40,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Conservation | $400,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Conservation | $100,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Project on Organizing Development Education | Conservation | $200,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Wildlife Conservation Society | Conservation | $70,000 | 2014 | NY |
| The William and Flora Hewlett Foundation | Wildlife Conservation Society | Conservation | $75,000 | 2012 | NY |
| The William and Flora Hewlett Foundation | Wildlife Conservation Society | Conservation | $75,000 | 2011 | NY |
| The William and Flora Hewlett Foundation | Wildlife Conservation Society | Conservation | $100,000 | 2010 | NY |
| The William and Flora Hewlett Foundation | Wildlife Conservation Society | Conservation | $130,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Wildlife Conservation Society | Conservation | $100,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Institute for Fisheries Resources | Conservation | $60,000 | 2013 | OR |
| The William and Flora Hewlett Foundation | Institute for Fisheries Resources | Conservation | $30,000 | 2012 | OR |
| The William and Flora Hewlett Foundation | Institute for Fisheries Resources | Conservation | $25,000 | 2011 | OR |
| The William and Flora Hewlett Foundation | Sustainable Northwest | Conservation | $100,000 | 2013 | OR |
| The William and Flora Hewlett Foundation | Sustainable Northwest | Conservation | $100,000 | 2012 | OR |
| The William and Flora Hewlett Foundation | Sustainable Northwest | Conservation | $100,000 | 2011 | OR |
| The William and Flora Hewlett Foundation | Western Environmental Law Center | Conservation | $80,000 | 2015 | OR |
| The William and Flora Hewlett Foundation | Western Environmental Law Center | Conservation | $80,000 | 2014 | OR |
| The William and Flora Hewlett Foundation | Western Environmental Law Center | Conservation | $80,000 | 2013 | OR |
| The William and Flora Hewlett Foundation | Western Environmental Law Center | Conservation | $80,000 | 2012 | OR |
| The William and Flora Hewlett Foundation | Western Environmental Law Center | Conservation | $80,000 | 2012 | OR |
| The William and Flora Hewlett Foundation | Western Environmental Law Center | Conservation | $65,000 | 2012 | OR |
| The William and Flora Hewlett Foundation | Western Environmental Law Center | Conservation | $65,000 | 2011 | OR |
| The William and Flora Hewlett Foundation | Western Environmental Law Center | Conservation | $65,000 | 2010 | OR |
| The William and Flora Hewlett Foundation | Western Environmental Law Center | Conservation | $50,000 | 2009 | OR |
| The William and Flora Hewlett Foundation | Wild Salmon Center | Conservation | $100,000 | 2017 | OR |
| The William and Flora Hewlett Foundation | Wild Salmon Center | Conservation | $150,000 | 2008 | OR |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $3,350,000 | 2017 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $1,200,000 | 2017 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $3,000,000 | 2016 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $1,400,000 | 2016 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $3,000,000 | 2015 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $3,000,000 | 2014 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $1,800,000 | 2013 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $1,600,000 | 2012 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $350,000 | 2012 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $1,100,000 | 2011 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $350,000 | 2011 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $268,000 | 2011 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $2,000,000 | 2010 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $415,000 | 2010 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $2,000,000 | 2009 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $2,000,000 | 2009 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $375,000 | 2008 | PA |
| The William and Flora Hewlett Foundation | Society of Environmental Journalists | Conservation | $200,000 | 2017 | PA |
| The William and Flora Hewlett Foundation | Public Land Solutions | Conservation | $100,000 | 2016 | UT |
| The William and Flora Hewlett Foundation | Round River Conservation Studies | Conservation | $50,000 | 2012 | UT |
| The William and Flora Hewlett Foundation | Conservation Fund | Conservation | $60,000 | 2017 | VA |
| The William and Flora Hewlett Foundation | Conservation Fund | Conservation | $70,000 | 2015 | VA |
| The William and Flora Hewlett Foundation | Conservation Fund | Conservation | $70,000 | 2012 | VA |
| The William and Flora Hewlett Foundation | Conservation Fund | Conservation | $75,000 | 2010 | VA |
| The William and Flora Hewlett Foundation | Conservation Fund | Conservation | $62,500 | 2010 | VA |
| The William and Flora Hewlett Foundation | Conservation Fund | Conservation | $75,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Conservation Fund | Conservation | $75,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Conservation Fund | Conservation | $75,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Conservation | $765,000 | 2017 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Conservation | $565,000 | 2016 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Conservation | $565,000 | 2015 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $250,000 | 2017 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $400,000 | 2016 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $250,000 | 2016 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $250,000 | 2015 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $200,000 | 2015 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $500,000 | 2014 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $250,000 | 2014 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $250,000 | 2013 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $250,000 | 2012 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $250,000 | 2012 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $200,000 | 2011 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $112,500 | 2011 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $110,000 | 2011 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $300,000 | 2010 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $225,000 | 2010 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $200,000 | 2010 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $187,500 | 2010 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $175,000 | 2010 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $112,500 | 2010 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $700,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $300,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $225,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $225,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $175,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $150,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $100,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $700,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $450,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $150,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $150,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $125,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $125,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $100,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Conservation | $2,055,000 | 2016 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Conservation | $250,000 | 2015 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Conservation | $150,000 | 2010 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Conservation | $4,015,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Conservation | $1,500,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Conservation | $150,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | California Trout | Conservation | $100,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Pepperwood Foundation | Conservation | $64,250 | 2018 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $1,000,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $1,650,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $340,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $2,000,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $200,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $400,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Conservation | $500,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | San Francisco Parks Alliance | Conservation | $200,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Conservation | $300,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Trust for Conservation Innovation | Conservation | $200,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Lands | Conservation | $450,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Keystone Center | Conservation | $115,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | National Audubon Society | Conservation | $175,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Partners for Conservation | Conservation | $100,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Center for American Progress | Conservation | $500,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | International Initiative for Impact Evaluation | Conservation | $125,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | League of Conservation Voters Education Fund | Conservation | $150,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Conservation | $100,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Conservation | $825,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Conservation | $1,500,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Heart of the Rockies Initiative | Conservation | $250,000 | 2018 | MT |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Conservation | $60,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Project on Organizing Development Education | Conservation | $100,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Conservation | $1,200,000 | 2018 | PA |
| The William and Flora Hewlett Foundation | Society of Environmental Journalists | Conservation | $130,000 | 2018 | PA |
| The William and Flora Hewlett Foundation | Society of Environmental Journalists | Conservation | $200,000 | 2018 | PA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Conservation | $130,050 | 2018 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Conservation | $765,000 | 2018 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | Conservation | $250,000 | 2018 | VA |
| The William and Flora Hewlett Foundation | The Conservation Fund | Conservation | $70,000 | 2018 | VA |
| The William and Flora Hewlett Foundation | Sand County Foundation | Conservation | $20,000 | 2018 | WI |
| The William and Flora Hewlett Foundation | Sand County Foundation | Conservation | $103,000 | 2018 | WI |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Fracking | $1,500,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Fracking | $300,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Fracking | $100,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | Fracking | $150,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Fracking | $383,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Fracking | $467,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Fracking | $600,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Fracking | $700,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Fracking | $600,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Fracking | $280,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Fracking | $200,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Fracking | $200,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Grand Canyon Trust | General operations | $462,500 | 2015 | AZ |
| The William and Flora Hewlett Foundation | Grand Canyon Trust | General operations | $462,500 | 2014 | AZ |
| The William and Flora Hewlett Foundation | Grand Canyon Trust | General operations | $332,500 | 2010 | AZ |
| The William and Flora Hewlett Foundation | Grand Canyon Trust | General operations | $375,000 | 2009 | AZ |
| The William and Flora Hewlett Foundation | Grand Canyon Trust | General operations | $375,000 | 2008 | AZ |
| The William and Flora Hewlett Foundation | Grand Canyon Trust | General operations | $375,000 | 2008 | AZ |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | General operations | $50,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | General operations | $50,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | General operations | $145,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Breakthrough Institute | General operations | $150,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | California League of Conservation Voters | General operations | $20,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | CALSTART | General operations | $200,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | CALSTART | General operations | $200,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | CALSTART | General operations | $200,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | CALSTART | General operations | $120,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | CALSTART | General operations | $120,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | CALSTART | General operations | $89,500 | 2012 | CA |
| The William and Flora Hewlett Foundation | CALSTART | General operations | $180,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | CALSTART | General operations | $350,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Center for Energy Efficiency and Renewable Technologies | General operations | $100,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Center for Energy Efficiency and Renewable Technologies | General operations | $100,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Center for Energy Efficiency and Renewable Technologies | General operations | $100,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Center for Energy Efficiency and Renewable Technologies | General operations | $100,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Center for Energy Efficiency and Renewable Technologies | General operations | $150,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Center for Energy Efficiency and Renewable Technologies | General operations | $200,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Center for Energy Efficiency and Renewable Technologies | General operations | $200,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Center for Energy Efficiency and Renewable Technologies | General operations | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | General operations | $35,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | General operations | $40,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | General operations | $26,400 | 2010 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | General operations | $15,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Climate Policy Initiative | General operations | $1,500,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | General operations | $20,000,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | General operations | $150,000,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | General operations | $100,000,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | General operations | $100,000,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | General operations | $150,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | General operations | $100,000,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | General operations | $100,000,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | General operations | $20,410,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $125,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $60,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $600,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $750,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $750,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $750,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $125,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $125,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $800,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $30,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $900,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $800,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $125,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $22,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | COFEM | General operations | $50,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | COFEM | General operations | $50,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Common Counsel Foundation | General operations | $9,457 | 2009 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | General operations | $66,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | General operations | $37,500 | 2008 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | General operations | $37,500 | 2008 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $50,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $39,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $39,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $39,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $39,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $35,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $35,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $35,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $30,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $15,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $15,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Earth Island Institute | General operations | $5,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Earthjustice | General operations | $1,588,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Earthjustice | General operations | $700,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Earthjustice | General operations | $175,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Earthjustice | General operations | $350,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Earthjustice | General operations | $50,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $10,450,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $17,450,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $5,725,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $17,175,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $10,300,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $1,810,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $502,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $5,000,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $5,000,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $502,500 | 2012 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $5,000,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $1,333,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $502,500 | 2011 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $5,000,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $1,835,500 | 2010 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $333,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $6,300,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $2,168,500 | 2009 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $2,000,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $1,665,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $3,833,500 | 2008 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $2,000,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | General operations | $1,166,500 | 2008 | CA |
| The William and Flora Hewlett Foundation | Environmental Justice Coalition for Water | General operations | $150,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Environmental Justice Coalition for Water | General operations | $150,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Fresno County Medical Society | General operations | $75,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Fresno County Medical Society | General operations | $75,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Fresno Metropolitan Ministry | General operations | $160,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Fresno Metropolitan Ministry | General operations | $90,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Fresno Metropolitan Ministry | General operations | $90,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Fresno Metropolitan Ministry | General operations | $90,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Green Corps | General operations | $75,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Green Corps | General operations | $25,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | GreenInfo Network | General operations | $75,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Groundswell Fund | General operations | $2,000,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Groundswell Fund | General operations | $300,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Innovation Center for Energy and Transportation | General operations | $300,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Innovation Center for Energy and Transportation | General operations | $30,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Labor and Community Strategy Center | General operations | $50,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Latino Issues Forum | General operations | $50,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | General operations | $458,333 | 2011 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | General operations | $458,333 | 2010 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | General operations | $458,333 | 2010 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | General operations | $916,666 | 2009 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | General operations | $458,334 | 2009 | CA |
| The William and Flora Hewlett Foundation | People for Open Space | General operations | $200,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | People for Open Space | General operations | $35,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Plug In America | General operations | $100,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Plug In America | General operations | $40,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Proyecto Fronterizo de Educacion Ambiental | General operations | $100,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Redefining Progress | General operations | $9,500 | 2008 | CA |
| The William and Flora Hewlett Foundation | Regeneration Project | General operations | $350,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Resource Media | General operations | $40,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Resource Media | General operations | $500,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Resource Media | General operations | $500,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Resource Media | General operations | $50,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Resource Media | General operations | $1,000,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | General operations | $6,850,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | General operations | $220,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | General operations | $200,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | San Francisco Foundation | General operations | $350,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | San Francisco Parks Alliance | General operations | $75,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Sierra Club Foundation | General operations | $800,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | General operations | $55,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | TransForm | General operations | $150,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | TransForm | General operations | $200,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | TransForm | General operations | $150,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | TransForm | General operations | $300,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | TransForm | General operations | $200,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | TransForm | General operations | $200,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Transportation and Land Use Coalition | General operations | $200,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Transportation and Land Use Coalition | General operations | $200,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Transportation and Land Use Coalition | General operations | $32,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Trips for Kids | General operations | $50,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Trips for Kids | General operations | $40,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | General operations | $35,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | General operations | $450,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | General operations | $20,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Urban Habitat | General operations | $50,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Urban Habitat | General operations | $35,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Urban Habitat | General operations | $30,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Water Foundation | General operations | $1,850,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Aspen Global Change Institute | General operations | $100,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Aspen Global Change Institute | General operations | $200,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Campaign for America's Wilderness | General operations | $475,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Colorado College | General operations | $175,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Colorado Conservation Trust | General operations | $220,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Colorado Conservation Trust | General operations | $220,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Colorado Conservation Trust | General operations | $440,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Colorado Conservation Voters Education Fund | General operations | $15,000 | 2015 | CO |
| The William and Flora Hewlett Foundation | Colorado Environmental Coalition | General operations | $25,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Colorado Environmental Coalition | General operations | $20,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | General operations | $500,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | General operations | $500,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | General operations | $200,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | General operations | $230,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | General operations | $200,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | General operations | $200,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | General operations | $230,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | General operations | $230,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | General operations | $200,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | EcoFlight | General operations | $150,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | EcoFlight | General operations | $150,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | EcoFlight | General operations | $150,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | EcoFlight | General operations | $150,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | EcoFlight | General operations | $350,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | EcoFlight | General operations | $150,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | EcoFlight | General operations | $200,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | EcoFlight | General operations | $200,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | EcoFlight | General operations | $200,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | EcoFlight | General operations | $75,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $100,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $100,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $100,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $200,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $100,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $100,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $100,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $12,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $100,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $100,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $100,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | High Country News | General operations | $100,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | National Conservation System Foundation | General operations | $200,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | National Conservation System Foundation | General operations | $200,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | National Conservation System Foundation | General operations | $200,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | National Conservation System Foundation | General operations | $200,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | National Conservation System Foundation | General operations | $200,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Rocky Mountain Institute | General operations | $150,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Southwest Energy Efficiency Project | General operations | $100,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | Southwest Energy Efficiency Project | General operations | $150,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Southwest Energy Efficiency Project | General operations | $300,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Southwest Energy Efficiency Project | General operations | $160,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Southwest Energy Efficiency Project | General operations | $160,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Southwest Energy Efficiency Project | General operations | $160,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $10,500,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $500,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $4,750,000 | 2016 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $350,000 | 2016 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $150,000 | 2016 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $35,000 | 2015 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $2,500,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $2,200,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $200,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $2,000,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $2,000,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $2,000,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $2,470,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | General operations | $2,500,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | General operations | $300,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | General operations | $300,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | General operations | $400,000 | 2016 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | General operations | $7,000 | 2015 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | General operations | $83,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | General operations | $25,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | African Center for Economic Transformation | General operations | $800,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | American Rivers | General operations | $25,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | General operations | $1,200,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | General operations | $666,666 | 2017 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | General operations | $666,668 | 2015 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | General operations | $600,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | General operations | $300,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | General operations | $2,000,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | General operations | $2,000,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | General operations | $2,000,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Brookings Institution | General operations | $600,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Brookings Institution | General operations | $600,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Brookings Institution | General operations | $1,200,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Brookings Institution | General operations | $600,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Carnegie Endowment for International Peace | General operations | $550,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Center for Lobbying in the Public Interest | General operations | $10,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | General operations | $2,500,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Coalition for Green Capital | General operations | $350,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Defenders of Wildlife | General operations | $42,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | EarthRights International | General operations | $300,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Electrification Coalition Foundation | General operations | $100,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Electrification Coalition Foundation | General operations | $100,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Environmental Integrity Project | General operations | $100,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Environmental Integrity Project | General operations | $150,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Environmental Integrity Project | General operations | $150,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Environmental Integrity Project | General operations | $150,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Environmental Integrity Project | General operations | $150,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Environmental Law Institute | General operations | $315,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | General operations | $600,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Greenpeace Fund | General operations | $575,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | International Council on Clean Transportation | General operations | $1,375,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | International Council on Clean Transportation | General operations | $2,350,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | International Council on Clean Transportation | General operations | $1,000,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | International Council on Clean Transportation | General operations | $1,350,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | International Council on Clean Transportation | General operations | $1,350,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | International Council on Clean Transportation | General operations | $2,700,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | International Council on Clean Transportation | General operations | $1,700,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | International Initiative for Impact Evaluation | General operations | $2,000,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | International Initiative for Impact Evaluation | General operations | $2,000,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Island Press Center for Resource Economics | General operations | $100,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | General operations | $1,000,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | General operations | $650,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Niskanen Center for Public Policy | General operations | $200,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Oceana | General operations | $1,000,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Oil Change International | General operations | $150,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Project on Government Oversight | General operations | $70,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | R Street Institute | General operations | $250,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Securing America's Future Energy Foundation | General operations | $36,800 | 2015 | DC |
| The William and Flora Hewlett Foundation | Securing America's Future Energy Foundation | General operations | $30,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Securing America's Future Energy Foundation | General operations | $200,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Securing America's Future Energy Foundation | General operations | $300,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Securing America's Future Energy Foundation | General operations | $300,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Securing Americas Future Energy Foundation | General operations | $600,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Society for Conservation Biology | General operations | $50,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Society for Conservation Biology | General operations | $50,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | General operations | $100,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | General operations | $15,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | General operations | $30,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | General operations | $30,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | General operations | $150,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | General operations | $150,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Third Way Institute | General operations | $300,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | General operations | $40,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | General operations | $40,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | General operations | $30,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | General operations | $50,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | General operations | $40,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | General operations | $25,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | General operations | $515,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | General operations | $150,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | General operations | $50,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | General operations | $100,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Idaho Conservation League | General operations | $50,000 | 2017 | ID |
| The William and Flora Hewlett Foundation | Idaho Conservation League | General operations | $50,000 | 2014 | ID |
| The William and Flora Hewlett Foundation | Environmental Law and Policy Center of the Midwest | General operations | $300,000 | 2012 | IL |
| The William and Flora Hewlett Foundation | Environmental Law and Policy Center of the Midwest | General operations | $200,000 | 2009 | IL |
| The William and Flora Hewlett Foundation | Environmental Law and Policy Center of the Midwest | General operations | $200,000 | 2008 | IL |
| The William and Flora Hewlett Foundation | Environmental Law and Policy Center of the Midwest | General operations | $200,000 | 2008 | IL |
| The William and Flora Hewlett Foundation | Clean Air Task Force | General operations | $500,000 | 2017 | MA |
| The William and Flora Hewlett Foundation | Clean Air Task Force | General operations | $1,000,000 | 2014 | MA |
| The William and Flora Hewlett Foundation | Clean Air Task Force | General operations | $1,000,000 | 2014 | MA |
| The William and Flora Hewlett Foundation | Clean Air Task Force | General operations | $400,000 | 2013 | MA |
| The William and Flora Hewlett Foundation | Harvard University | General operations | $300,000 | 2009 | MA |
| The William and Flora Hewlett Foundation | Institute for Multi-Stakeholder Initiative Integrity | General operations | $200,000 | 2017 | MA |
| The William and Flora Hewlett Foundation | Tufts College | General operations | $498,260 | 2009 | MA |
| The William and Flora Hewlett Foundation | Union of Concerned Scientists | General operations | $225,000 | 2008 | MA |
| The William and Flora Hewlett Foundation | SeaWeb | General operations | $100,000 | 2008 | MD |
| The William and Flora Hewlett Foundation | Conserve America | General operations | $26,000 | 2012 | MI |
| The William and Flora Hewlett Foundation | Instream Flow Council | General operations | $50,000 | 2008 | MI |
| The William and Flora Hewlett Foundation | Instream Flow Council | General operations | $50,000 | 2008 | MI |
| The William and Flora Hewlett Foundation | National Association of Environmental Law Societies | General operations | $100,000 | 2008 | MI |
| The William and Flora Hewlett Foundation | Blue Green Alliance Foundation | General operations | $500,000 | 2017 | MN |
| The William and Flora Hewlett Foundation | Blue Green Alliance Foundation | General operations | $300,000 | 2014 | MN |
| The William and Flora Hewlett Foundation | Blue Green Alliance Foundation | General operations | $30,000 | 2014 | MN |
| The William and Flora Hewlett Foundation | Blue Green Alliance Foundation | General operations | $220,000 | 2013 | MN |
| The William and Flora Hewlett Foundation | Blue Green Alliance Foundation | General operations | $1,230,000 | 2012 | MN |
| The William and Flora Hewlett Foundation | Blue Green Alliance Foundation | General operations | $400,000 | 2010 | MN |
| The William and Flora Hewlett Foundation | Great Plains Institute for Sustainable Development | General operations | $1,500,000 | 2017 | MN |
| The William and Flora Hewlett Foundation | Great Plains Institute for Sustainable Development | General operations | $125,000 | 2015 | MN |
| The William and Flora Hewlett Foundation | Great Plains Institute for Sustainable Development | General operations | $125,000 | 2014 | MN |
| The William and Flora Hewlett Foundation | Great Plains Institute for Sustainable Development | General operations | $70,000 | 2013 | MN |
| The William and Flora Hewlett Foundation | Backcountry Hunters and Anglers | General operations | $200,000 | 2017 | MT |
| The William and Flora Hewlett Foundation | Climate Conservation | General operations | $37,500 | 2017 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $425,000 | 2015 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $20,000 | 2015 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $425,000 | 2014 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $425,000 | 2013 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $425,000 | 2012 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $425,000 | 2012 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $25,000 | 2012 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $19,000 | 2012 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $400,000 | 2011 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $19,000 | 2011 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $25,000 | 2010 | MT |
| The William and Flora Hewlett Foundation | Greater Yellowstone Coalition | General operations | $375,000 | 2008 | MT |
| The William and Flora Hewlett Foundation | Headwaters Economics | General operations | $150,000 | 2014 | MT |
| The William and Flora Hewlett Foundation | Headwaters Economics | General operations | $150,000 | 2013 | MT |
| The William and Flora Hewlett Foundation | Headwaters Economics | General operations | $150,000 | 2011 | MT |
| The William and Flora Hewlett Foundation | Headwaters Economics | General operations | $150,000 | 2011 | MT |
| The William and Flora Hewlett Foundation | Headwaters Economics | General operations | $150,000 | 2010 | MT |
| The William and Flora Hewlett Foundation | Headwaters Economics | General operations | $45,000 | 2009 | MT |
| The William and Flora Hewlett Foundation | Headwaters Economics | General operations | $400,000 | 2008 | MT |
| The William and Flora Hewlett Foundation | Headwaters Economics | General operations | $200,000 | 2008 | MT |
| The William and Flora Hewlett Foundation | Institute for Journalism and Natural Resources | General operations | $450,000 | 2009 | MT |
| The William and Flora Hewlett Foundation | Institutes for Journalism and Natural Resources | General operations | $20,000 | 2012 | MT |
| The William and Flora Hewlett Foundation | Montana Wilderness Association | General operations | $100,000 | 2017 | MT |
| The William and Flora Hewlett Foundation | Montana Wilderness Association | General operations | $65,000 | 2014 | MT |
| The William and Flora Hewlett Foundation | Montana Wilderness Association | General operations | $50,000 | 2013 | MT |
| The William and Flora Hewlett Foundation | Montana Wilderness Association | General operations | $50,000 | 2012 | MT |
| The William and Flora Hewlett Foundation | Western Organization of Resource Councils | General operations | $200,000 | 2014 | MT |
| The William and Flora Hewlett Foundation | Duke University | General operations | $40,000 | 2010 | NC |
| The William and Flora Hewlett Foundation | Princeton University | General operations | $200,000 | 2009 | NJ |
| The William and Flora Hewlett Foundation | Princeton University | General operations | $200,000 | 2008 | NJ |
| The William and Flora Hewlett Foundation | Western Landowners Alliance | General operations | $100,000 | 2017 | NM |
| The William and Flora Hewlett Foundation | Audubon Society, National | General operations | $175,000 | 2013 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | General operations | $50,000 | 2013 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | General operations | $50,000 | 2010 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | General operations | $300,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Audubon Society, National | General operations | $50,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $67,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $67,000 | 2015 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $64,000 | 2014 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $50,000 | 2013 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $50,000 | 2012 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $50,000 | 2012 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $100,000 | 2011 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $90,000 | 2011 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $50,000 | 2010 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $100,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $50,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $150,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | Environmental Grantmakers Association | General operations | $10,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $40,000 | 2015 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $30,000 | 2014 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $500,000 | 2011 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $500,000 | 2011 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $1,000,000 | 2010 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $525,000 | 2010 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $525,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $525,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $20,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $450,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | Institute for Transportation and Development Policy | General operations | $250,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | Natural Resource Governance Institute | General operations | $1,500,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Natural Resource Governance Institute | General operations | $2,000,000 | 2015 | NY |
| The William and Flora Hewlett Foundation | Natural Resource Governance Institute | General operations | $2,000,000 | 2014 | NY |
| The William and Flora Hewlett Foundation | Natural Resource Governance Institute | General operations | $200,000 | 2014 | NY |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | General operations | $1,500,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Outward Bound | General operations | $90,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Family Fund | General operations | $100,000 | 2011 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Philanthropy Advisors | General operations | $100,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Philanthropy Advisors | General operations | $100,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Philanthropy Advisors | General operations | $100,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | SeaChange Capital Partners | General operations | $250,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Institute for Energy Economics and Financial Analysis | General operations | $200,000 | 2017 | OH |
| The William and Flora Hewlett Foundation | Renewable Northwest Project | General operations | $100,000 | 2009 | OR |
| The William and Flora Hewlett Foundation | Renewable Northwest Project | General operations | $100,000 | 2008 | OR |
| The William and Flora Hewlett Foundation | Sustainable Northwest | General operations | $30,000 | 2016 | OR |
| The William and Flora Hewlett Foundation | Sustainable Northwest | General operations | $100,000 | 2010 | OR |
| The William and Flora Hewlett Foundation | Sustainable Northwest | General operations | $30,000 | 2010 | OR |
| The William and Flora Hewlett Foundation | Sustainable Northwest | General operations | $100,000 | 2009 | OR |
| The William and Flora Hewlett Foundation | Sustainable Northwest | General operations | $100,000 | 2009 | OR |
| The William and Flora Hewlett Foundation | Society of Environmental Journalists | General operations | $175,000 | 2009 | PA |
| The William and Flora Hewlett Foundation | Society of Environmental Journalists | General operations | $175,000 | 2008 | PA |
| The William and Flora Hewlett Foundation | Society of Environmental Journalists | General operations | $175,000 | 2008 | PA |
| The William and Flora Hewlett Foundation | Society of Environmental Journalists | General operations | $50,000 | 2008 | PA |
| The William and Flora Hewlett Foundation | Society of Environmental Journalists | General operations | $50,000 | 2008 | PA |
| The William and Flora Hewlett Foundation | Public Land Solutions | General operations | $125,000 | 2017 | UT |
| The William and Flora Hewlett Foundation | Public Land Solutions | General operations | $100,000 | 2015 | UT |
| The William and Flora Hewlett Foundation | Energy Innovation Reform Project | General operations | $300,000 | 2017 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | General operations | $80,000 | 2013 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | General operations | $10,000 | 2013 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | General operations | $122,000 | 2011 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | General operations | $350,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | General operations | $175,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Nature Conservancy | General operations | $175,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | General operations | $40,000 | 2015 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | General operations | $15,000 | 2014 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | General operations | $50,000 | 2013 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | General operations | $50,000 | 2011 | VA |
| The William and Flora Hewlett Foundation | Virginia Organizing | General operations | $15,000 | 2012 | VA |
| The William and Flora Hewlett Foundation | Virginia Organizing | General operations | $10,000 | 2012 | VA |
| The William and Flora Hewlett Foundation | Regulatory Assistance Project | General operations | $100,000 | 2013 | VT |
| The William and Flora Hewlett Foundation | Conservation Northwest | General operations | $20,000 | 2009 | WA |
| The William and Flora Hewlett Foundation | Northwest Energy Coalition | General operations | $100,000 | 2009 | WA |
| The William and Flora Hewlett Foundation | Northwest Energy Coalition | General operations | $100,000 | 2008 | WA |
| The William and Flora Hewlett Foundation | Save Our Wild Salmon Coalition | General operations | $100,000 | 2009 | WA |
| The William and Flora Hewlett Foundation | Western Lands Project | General operations | $50,000 | 2009 | WA |
| The William and Flora Hewlett Foundation | Western Lands Project | General operations | $50,000 | 2008 | WA |
| The William and Flora Hewlett Foundation | Sand County Foundation | General operations | $175,000 | 2014 | WI |
| The William and Flora Hewlett Foundation | We Own it | General operations | $150,000 | 2017 | WI |
| The William and Flora Hewlett Foundation | LightHawk | General operations | $75,000 | 2010 | WY |
| The William and Flora Hewlett Foundation | LightHawk | General operations | $100,000 | 2008 | WY |
| The William and Flora Hewlett Foundation | LightHawk | General operations | $100,000 | 2008 | WY |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | General operations | $50,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Climate Policy Initiative | General operations | $1,250,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Climate Policy Initiative | General operations | $100,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Climateworks Foundation | General operations | $4,400,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | General operations | $125,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | General operations | $50,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Dream Corps | General operations | $500,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Earthjustice | General operations | $1,400,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Earthjustice | General operations | $450,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Greenlining Institute | General operations | $250,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | General operations | $1,500,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | General operations | $375,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | The Energy Foundation | General operations | $21,000,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Conservation Colorado | General operations | $200,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Conservation Colorado | General operations | $200,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | General operations | $500,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Ecoflight | General operations | $150,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Rocky Mountain Institute | General operations | $1,450,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Western Conservation | General operations | $2,000,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Western Conservation | General operations | $350,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Earthrights International | General operations | $300,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Power Shift Network | General operations | $100,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Idaho Conservation League | General operations | $50,000 | 2018 | ID |
| The William and Flora Hewlett Foundation | Idaho Conservation League | General operations | $30,000 | 2018 | ID |
| The William and Flora Hewlett Foundation | Clean Air Task Force | General operations | $500,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | Climate Conservation | General operations | $37,500 | 2018 | MT |
| The William and Flora Hewlett Foundation | Western Organization of Resource Councils | General operations | $450,000 | 2018 | MT |
| The William and Flora Hewlett Foundation | Environmental Grantmakers | General operations | $67,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Natural Resource Governance Institute | General operations | $1,500,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Wild Salmon Center | General operations | $150,000 | 2018 | OR |
| The William and Flora Hewlett Foundation | Young Conservatives for Energy Reform | General operations | $150,000 | 2018 | SC |
| The William and Flora Hewlett Foundation | Public Land Solutions | General operations | $125,000 | 2018 | UT |
| The William and Flora Hewlett Foundation | Energy Innovation Reform Project | General operations | $300,000 | 2018 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | General operations | $250,000 | 2018 | VA |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | Miscellaneous | $30,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | Miscellaneous | $85,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Berkeley Lab Foundation | Miscellaneous | $1,000,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Berkeley Lab Foundation | Miscellaneous | $500,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Miscellaneous | $7,500,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | Miscellaneous | $75,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Communities for a Better Environment | Miscellaneous | $50,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Consultative Group on Biological Diversity | Miscellaneous | $50,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Consumers Union of United States | Miscellaneous | $125,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Consumers Union of United States | Miscellaneous | $88,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Earth Island Institute | Miscellaneous | $150,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Earth Island Institute | Miscellaneous | $65,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Earth Island Institute | Miscellaneous | $30,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Earth Island Institute | Miscellaneous | $50,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Miscellaneous | $13,078,500 | 2017 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Miscellaneous | $250,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Miscellaneous | $6,000,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Miscellaneous | $75,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Miscellaneous | $300,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Green for All | Miscellaneous | $50,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Green for All | Miscellaneous | $100,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Green for All | Miscellaneous | $150,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Greenlining Institute | Miscellaneous | $150,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Greenlining Institute | Miscellaneous | $60,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Greenlining Institute | Miscellaneous | $60,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Miscellaneous | $100,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Miscellaneous | $50,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Nautilus of America | Miscellaneous | $325,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Non-Profit Housing Association of Northern California | Miscellaneous | $50,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Non-Profit Housing Association of Northern California | Miscellaneous | $50,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Philanthropic Ventures Foundation | Miscellaneous | $50,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Proyecto Fronterizo de Educacion Ambiental | Miscellaneous | $100,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Public Advocates | Miscellaneous | $50,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Resource Legacy Fund | Miscellaneous | $800,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Miscellaneous | $1,500,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Miscellaneous | $325,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Miscellaneous | $500,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Miscellaneous | $250,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Miscellaneous | $35,075 | 2017 | CA |
| The William and Flora Hewlett Foundation | San Francisco Foundation | Miscellaneous | $200,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | San Francisco Foundation | Miscellaneous | $130,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | San Francisco Parks Alliance | Miscellaneous | $37,600 | 2017 | CA |
| The William and Flora Hewlett Foundation | San Francisco Parks Alliance | Miscellaneous | $200,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | San Francisco Parks Alliance | Miscellaneous | $150,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Save the Bay | Miscellaneous | $110,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Sonoma State University Academic Foundation | Miscellaneous | $100,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Stanford University | Miscellaneous | $100,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Stanford University Board of Trustees of the Lelan | Miscellaneous | $400,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | TransForm | Miscellaneous | $50,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Trips for Kids | Miscellaneous | $30,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Trust for Conservation Innovation | Miscellaneous | $200,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Miscellaneous | $450,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Miscellaneous | $250,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Miscellaneous | $250,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Miscellaneous | $32,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Miscellaneous | $200,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Miscellaneous | $200,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Miscellaneous | $200,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Urban Habitat | Miscellaneous | $140,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Urban Habitat | Miscellaneous | $40,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Conservation Colorado | Miscellaneous | $45,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Conservation Colorado | Miscellaneous | $18,000 | 2016 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | Miscellaneous | $20,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | Miscellaneous | $25,000 | 2016 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | Miscellaneous | $250,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | Miscellaneous | $250,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Keystone Center | Miscellaneous | $25,000 | 2010 | CO |
| The William and Flora Hewlett Foundation | Rocky Mountain Institute | Miscellaneous | $250,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | Rocky Mountain Institute | Miscellaneous | $250,000 | 2017 | CO |
| The William and Flora Hewlett Foundation | African Center for Economic Transformation | Miscellaneous | $410,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | American Lung Association | Miscellaneous | $75,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Miscellaneous | $150,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Miscellaneous | $300,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Center for a New American Security | Miscellaneous | $160,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Center for American Progress | Miscellaneous | $300,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Center for National Policy | Miscellaneous | $150,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Miscellaneous | $590,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Coalition for Green Capital | Miscellaneous | $45,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Coalition for Green Capital | Miscellaneous | $100,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Earthworks | Miscellaneous | $35,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | Miscellaneous | $100,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | Miscellaneous | $100,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | Miscellaneous | $100,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | Miscellaneous | $100,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | Miscellaneous | $900,035 | 2009 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | Miscellaneous | $900,035 | 2008 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | Miscellaneous | $200,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | International Initiative for Impact Evaluation | Miscellaneous | $110,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | League of Conservation Voters Education Fund | Miscellaneous | $400,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | National Academy of Sciences | Miscellaneous | $50,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Miscellaneous | $150,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Miscellaneous | $150,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Miscellaneous | $200,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Miscellaneous | $200,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Miscellaneous | $400,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Miscellaneous | $100,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | R Street Institute | Miscellaneous | $350,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Salzburg Global Seminar | Miscellaneous | $225,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Securing Americas Future Energy Foundation | Miscellaneous | $30,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Taxpayers for Common Sense | Miscellaneous | $300,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Miscellaneous | $750,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Miscellaneous | $640,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Miscellaneous | $420,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Miscellaneous | $50,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Miscellaneous | $40,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Environmental Law and Policy Center of the Midwest | Miscellaneous | $69,000 | 2016 | IL |
| The William and Flora Hewlett Foundation | Shared-Use Mobility Center | Miscellaneous | $39,220 | 2016 | IL |
| The William and Flora Hewlett Foundation | Boston University | Miscellaneous | $255,000 | 2017 | MA |
| The William and Flora Hewlett Foundation | Conservation Law Foundation | Miscellaneous | $70,000 | 2016 | MA |
| The William and Flora Hewlett Foundation | Oxfam America | Miscellaneous | $30,000 | 2017 | MA |
| The William and Flora Hewlett Foundation | Union of Concerned Scientists | Miscellaneous | $200,000 | 2012 | MA |
| The William and Flora Hewlett Foundation | Union of Concerned Scientists | Miscellaneous | $225,000 | 2009 | MA |
| The William and Flora Hewlett Foundation | SeaWeb | Miscellaneous | $100,000 | 2010 | MD |
| The William and Flora Hewlett Foundation | Blue Green Alliance Foundation | Miscellaneous | $330,000 | 2011 | MN |
| The William and Flora Hewlett Foundation | Blue Green Alliance Foundation | Miscellaneous | $170,000 | 2011 | MN |
| The William and Flora Hewlett Foundation | Saint Marys University of Minnesota | Miscellaneous | $75,000 | 2017 | MN |
| The William and Flora Hewlett Foundation | Backcountry Hunters and Anglers | Miscellaneous | $100,000 | 2014 | MT |
| The William and Flora Hewlett Foundation | Montana Wilderness Association | Miscellaneous | $30,000 | 2017 | MT |
| The William and Flora Hewlett Foundation | Audubon Society, National | Miscellaneous | $87,500 | 2012 | NY |
| The William and Flora Hewlett Foundation | B Team Headquarters | Miscellaneous | $375,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | Natural Resource Governance Institute | Miscellaneous | $75,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Miscellaneous | $75,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Miscellaneous | $250,000 | 2013 | NY |
| The William and Flora Hewlett Foundation | Outward Bound | Miscellaneous | $45,000 | 2011 | NY |
| The William and Flora Hewlett Foundation | Outward Bound | Miscellaneous | $90,000 | 2010 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Family Fund | Miscellaneous | $100,000 | 2015 | NY |
| The William and Flora Hewlett Foundation | Rockefeller Philanthropy Advisors | Miscellaneous | $1,500,000 | 2010 | NY |
| The William and Flora Hewlett Foundation | SDSN Association Inc | Miscellaneous | $320,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | Sustainable Markets Foundation | Miscellaneous | $400,000 | 2017 | NY |
| The William and Flora Hewlett Foundation | Portland State University | Miscellaneous | $200,000 | 2009 | OR |
| The William and Flora Hewlett Foundation | Southern Alliance for Clean Energy | Miscellaneous | $40,000 | 2010 | TN |
| The William and Flora Hewlett Foundation | Energy Innovation Reform Project | Miscellaneous | $50,000 | 2017 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Miscellaneous | $25,000 | 2017 | VA |
| The William and Flora Hewlett Foundation | Regulatory Assistance Project | Miscellaneous | $50,000 | 2016 | VT |
| The William and Flora Hewlett Foundation | Breakthrough Institute | Miscellaneous | $30,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Climate Policy Initiative | Miscellaneous | $250,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Climate Policy Initiative | Miscellaneous | $1,000,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Climateworks Foundation | Miscellaneous | $140,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Climateworks Foundation | Miscellaneous | $50,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Climateworks Foundation | Miscellaneous | $2,500,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Compasspoint Nonprofit Services | Miscellaneous | $1,000,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Environmental Defense Fund Incorporated | Miscellaneous | $300,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Impact Fund | Miscellaneous | $100,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Regents of the University of California at Berkely | Miscellaneous | $100,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Regents of the University of California at Berkely | Miscellaneous | $784,165 | 2018 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Miscellaneous | $100,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | The Energy Foundation | Miscellaneous | $6,500,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | The Energy Foundation | Miscellaneous | $7,750,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Yurok Tribal Council | Miscellaneous | $150,000 | 2018 | CA |
| The William and Flora Hewlett Foundation | Regents of the University of Colorado | Miscellaneous | $319,955 | 2018 | CO |
| The William and Flora Hewlett Foundation | Regents of the University of Colorado | Miscellaneous | $272,340 | 2018 | CO |
| The William and Flora Hewlett Foundation | Regents of the University of Colorado | Miscellaneous | $349,614 | 2018 | CO |
| The William and Flora Hewlett Foundation | Rocky Mountain Institute | Miscellaneous | $250,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Rocky Mountain Institute | Miscellaneous | $250,000 | 2018 | CO |
| The William and Flora Hewlett Foundation | Coalition for Green Capital | Miscellaneous | $350,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Hopewell Fund | Miscellaneous | $50,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | League of Conservation Voters Education Fund | Miscellaneous | $47,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | League of Conservation Voters Education Fund | Miscellaneous | $1,000,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Miscellaneous | $500,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | R Street Institute | Miscellaneous | $200,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Miscellaneous | $750,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Miscellaneous | $50,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | United Nations Foundation | Miscellaneous | $45,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Miscellaneous | $75,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Jobs for the Future | Miscellaneous | $363,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | Jobs for the Future | Miscellaneous | $684,134 | 2018 | MA |
| The William and Flora Hewlett Foundation | OxfamAmerica | Miscellaneous | $900,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | Trustees of Boston University | Miscellaneous | $100,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | Environmental Grantmakers | Miscellaneous | $10,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Generalization Citizen | Miscellaneous | $250,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Generalization Citizen | Miscellaneous | $100,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Miscellaneous | $500,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Miscellaneous | $500,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Miscellaneous | $150,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Miscellaneous | $220,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Trustees of Columbia University | Miscellaneous | $380,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Trustees of Columbia University | Miscellaneous | $50,000 | 2018 | NY |
| The William and Flora Hewlett Foundation | Ohio Conservative Energy Forum | Miscellaneous | $100,000 | 2018 | OH |
| The William and Flora Hewlett Foundation | Institute for Strategic and Equitable Development | Miscellaneous | $100,000 | 2018 | SC |
| The William and Flora Hewlett Foundation | The National Association of State Energy Officials | Miscellaneous | $250,000 | 2018 | VA |
| The William and Flora Hewlett Foundation | Regulatory Assistance Project | Miscellaneous | $616,000 | 2018 | VT |
| The William and Flora Hewlett Foundation | Sonoran Institute | Oil and gas | $195,000 | 2015 | AZ |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Oil and gas | $1,000,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Environmental Defense Fund | Oil and gas | $150,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Tides Foundation | Oil and gas | $2,000,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Tides Foundation | Oil and gas | $2,000,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Tides Foundation | Oil and gas | $2,000,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Tides Foundation | Oil and gas | $2,000,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Tides Foundation | Oil and gas | $3,000,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Trust for Public Land | Oil and gas | $450,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Alliance for Sustainable Energy | Oil and gas | $1,062,500 | 2017 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Oil and gas | $50,000 | 2009 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Oil and gas | $280,000 | 2008 | CO |
| The William and Flora Hewlett Foundation | Carnegie Endowment for International Peace | Oil and gas | $100,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Carnegie Endowment for International Peace | Oil and gas | $100,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Center for American Progress | Oil and gas | $75,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Center for American Progress | Oil and gas | $250,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Center for American Progress | Oil and gas | $200,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | Defenders of Wildlife | Oil and gas | $66,666 | 2010 | DC |
| The William and Flora Hewlett Foundation | Defenders of Wildlife | Oil and gas | $66,666 | 2009 | DC |
| The William and Flora Hewlett Foundation | Defenders of Wildlife | Oil and gas | $66,667 | 2008 | DC |
| The William and Flora Hewlett Foundation | Defenders of Wildlife | Oil and gas | $66,666 | 2008 | DC |
| The William and Flora Hewlett Foundation | Earthworks | Oil and gas | $100,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Earthworks | Oil and gas | $100,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Earthworks | Oil and gas | $150,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Earthworks | Oil and gas | $20,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | Oil and gas | $125,000 | 2009 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | Oil and gas | $125,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Environmental Working Group | Oil and gas | $125,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | Global Witness Foundation | Oil and gas | $250,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Hispanic Access Foundation | Oil and gas | $80,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | League of Conservation Voters | Oil and gas | $75,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $600,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $600,000 | 2008 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $1,100,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $500,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $850,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $500,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $40,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $1,600,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $200,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $1,675,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $150,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $550,000 | 2011 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Oil and gas | $800,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Theodore Roosevelt Conservation Partnership | Oil and gas | $150,000 | 2014 | DC |
| The William and Flora Hewlett Foundation | Wilderness Society | Oil and gas | $100,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | Oxfam America | Oil and gas | $830,000 | 2017 | MA |
| The William and Flora Hewlett Foundation | Oxfam America | Oil and gas | $480,000 | 2017 | MA |
| The William and Flora Hewlett Foundation | Oxfam America | Oil and gas | $280,000 | 2017 | MA |
| The William and Flora Hewlett Foundation | Oxfam America | Oil and gas | $260,000 | 2017 | MA |
| The William and Flora Hewlett Foundation | Oxfam America | Oil and gas | $258,301 | 2017 | MA |
| The William and Flora Hewlett Foundation | Audubon Society, National | Oil and gas | $300,000 | 2008 | NY |
| The William and Flora Hewlett Foundation | International Senior Lawyers Corporation | Oil and gas | $225,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | Natural Resources Governance Institute | Oil and gas | $2,000,000 | 2016 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Oil and gas | $400,000 | 2015 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Oil and gas | $400,000 | 2014 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Oil and gas | $250,000 | 2012 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Oil and gas | $250,000 | 2011 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Oil and gas | $100,000 | 2010 | NY |
| The William and Flora Hewlett Foundation | Open Space Institute | Oil and gas | $100,000 | 2009 | NY |
| The William and Flora Hewlett Foundation | Wildlife Conservation Society | Oil and gas | $125,000 | 2015 | NY |
| The William and Flora Hewlett Foundation | Backcountry Hunters and Anglers | Oil and gas | $100,000 | 2012 | OR |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Oil and gas | $1,400,000 | 2015 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Oil and gas | $1,400,000 | 2014 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Oil and gas | $400,000 | 2013 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Oil and gas | $500,000 | 2012 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Oil and gas | $440,000 | 2012 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Oil and gas | $2,000,000 | 2009 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Oil and gas | $2,000,000 | 2008 | PA |
| The William and Flora Hewlett Foundation | Pew Charitable Trusts | Oil and gas | $2,000,000 | 2008 | PA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $375,000 | 2014 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $250,000 | 2014 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $500,000 | 2012 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $250,000 | 2012 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $250,000 | 2011 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $250,000 | 2011 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $250,000 | 2010 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $250,000 | 2010 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $600,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | National Wildlife Federation | Oil and gas | $250,000 | 2009 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Oil and gas | $2,000,000 | 2014 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Oil and gas | $2,000,000 | 2013 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Oil and gas | $1,875,000 | 2012 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Oil and gas | $2,400,000 | 2011 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Oil and gas | $1,875,000 | 2011 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Oil and gas | $4,015,000 | 2010 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Oil and gas | $1,500,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Oil and gas | $1,500,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Trout Unlimited | Oil and gas | $1,000,000 | 2008 | VA |
| The William and Flora Hewlett Foundation | Sand County Foundation | Oil and gas | $175,000 | 2015 | WI |
| The William and Flora Hewlett Foundation | Alliance for Sustainable Energy | Oil and gas | $62,500 | 2018 | CO |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $1,050,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Oil and gas | $500,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Oil Change International | Oil and gas | $150,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | Oil Change International | Oil and gas | $50,000 | 2018 | DC |
| The William and Flora Hewlett Foundation | OxfamAmerica | Oil and gas | $240,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | OxfamAmerica | Oil and gas | $270,000 | 2018 | MA |
| The William and Flora Hewlett Foundation | OxfamAmerica | Oil and gas | $191,699 | 2018 | MA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Political activism | $127,500 | 2017 | CA |
| The William and Flora Hewlett Foundation | Aspen Institute | Political activism | $325,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Aspen Institute | Political activism | $200,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | EarthRights International | Political activism | $300,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Environmental Law Institute | Political activism | $285,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | New Venture Fund | Political activism | $1,500,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Oxfam America | Political activism | $970,000 | 2016 | MA |
| The William and Flora Hewlett Foundation | Evangelical Environmental Network | Political activism | $75,000 | 2017 | PA |
| The William and Flora Hewlett Foundation | Virginia Organizing | Political activism | $15,000 | 2011 | VA |
| The William and Flora Hewlett Foundation | Evangelical Environmental Network | Political activism | $75,000 | 2018 | IN |
| The William and Flora Hewlett Foundation | Grand Canyon Trust | Public engagement | $25,000 | 2009 | AZ |
| The William and Flora Hewlett Foundation | Asian Pacific Environmental Network | Public engagement | $85,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | California Academy of Sciences | Public engagement | $100,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | California League of Conservation Voters | Public engagement | $95,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | California League of Conservation Voters | Public engagement | $50,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | California League of Conservation Voters | Public engagement | $50,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | CALSTART | Public engagement | $60,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Center on Race Poverty and the Environment | Public engagement | $26,400 | 2011 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | Public engagement | $125,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | Public engagement | $50,000 | 2011 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | Public engagement | $250,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Coalition for Clean Air | Public engagement | $7,500 | 2008 | CA |
| The William and Flora Hewlett Foundation | Dream Corps | Public engagement | $1,000,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Earth Island Institute | Public engagement | $150,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Earth Island Institute | Public engagement | $10,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Energy Foundation | Public engagement | $588,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Environment California Research and Policy Center | Public engagement | $150,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Environment California Research and Policy Center | Public engagement | $500,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Environmental Health Coalition | Public engagement | $50,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Environmental Health Coalition | Public engagement | $20,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Environmental Health Coalition | Public engagement | $32,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | GreenInfo Network | Public engagement | $20,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Groundswell Fund | Public engagement | $100,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | International Sustainable Systems Research Center | Public engagement | $50,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Public engagement | $25,000 | 2014 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Public engagement | $37,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Natural Resources Defense Council | Public engagement | $25,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | New America Media | Public engagement | $125,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Pacific News Service | Public engagement | $35,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Pacific News Service | Public engagement | $85,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Pacific News Service | Public engagement | $35,000 | 2008 | CA |
| The William and Flora Hewlett Foundation | Public Policy Institute of California | Public engagement | $10,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Public Policy Institute of California | Public engagement | $20,000 | 2015 | CA |
| The William and Flora Hewlett Foundation | Radio Bilingue | Public engagement | $55,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Resource Media | Public engagement | $200,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | Resources Legacy Fund | Public engagement | $250,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Public engagement | $125,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Public engagement | $40,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Rose Foundation for Communities and the Environment | Public engagement | $100,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | San Francisco Foundation | Public engagement | $230,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | San Francisco Foundation | Public engagement | $120,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Save the Bay | Public engagement | $30,000 | 2017 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Public engagement | $50,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Social and Environmental Entrepreneurs | Public engagement | $25,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Stanford University | Public engagement | $40,000 | 2016 | CA |
| The William and Flora Hewlett Foundation | Stanford University | Public engagement | $100,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Stanford University | Public engagement | $100,000 | 2012 | CA |
| The William and Flora Hewlett Foundation | University of California - Davis | Public engagement | $25,000 | 2010 | CA |
| The William and Flora Hewlett Foundation | Urban Habitat | Public engagement | $50,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | Virginia Organizing | Public engagement | $125,000 | 2009 | CA |
| The William and Flora Hewlett Foundation | WiserEarth | Public engagement | $50,000 | 2013 | CA |
| The William and Flora Hewlett Foundation | Colorado State University | Public engagement | $25,000 | 2013 | CO |
| The William and Flora Hewlett Foundation | Conservation Lands Foundation | Public engagement | $20,000 | 2014 | CO |
| The William and Flora Hewlett Foundation | High Country News | Public engagement | $100,000 | 2015 | CO |
| The William and Flora Hewlett Foundation | High Country News | Public engagement | $31,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | Public engagement | $228,000 | 2012 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | Public engagement | $150,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | Western Conservation Foundation | Public engagement | $20,000 | 2011 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Public engagement | $50,000 | 2015 | CO |
| The William and Flora Hewlett Foundation | Western Resource Advocates | Public engagement | $37,516 | 2011 | CO |
| The William and Flora Hewlett Foundation | Yale University | Public engagement | $200,000 | 2011 | CT |
| The William and Flora Hewlett Foundation | Yale University | Public engagement | $70,000 | 2011 | CT |
| The William and Flora Hewlett Foundation | Yale University | Public engagement | $200,000 | 2010 | CT |
| The William and Flora Hewlett Foundation | Yale University | Public engagement | $200,000 | 2010 | CT |
| The William and Flora Hewlett Foundation | Yale University | Public engagement | $70,000 | 2010 | CT |
| The William and Flora Hewlett Foundation | Yale University | Public engagement | $82,000 | 2008 | CT |
| The William and Flora Hewlett Foundation | African Center for Economic Transformation | Public engagement | $50,000 | 2010 | DC |
| The William and Flora Hewlett Foundation | Aspen Institute | Public engagement | $252,000 | 2015 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Public engagement | $666,666 | 2016 | DC |
| The William and Flora Hewlett Foundation | Bipartisan Policy Center | Public engagement | $300,000 | 2016 | DC |
| The William and Flora Hewlett Foundation | Center for American Progress | Public engagement | $50,000 | 2012 | DC |
| The William and Flora Hewlett Foundation | Christian Coalition | Public engagement | $150,000 | 2013 | DC |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Public engagement | $1,000,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | ClimateWorks Foundation | Public engagement | $670,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Earth Day Network | Public engagement | $50,000 | 2017 | DC |
| The William and Flora Hewlett Foundation | Environment America Research and Policy Center | Public engagement | $5,000 | 2012 | DC |
| The William and Flora Hewlett Foundation |