The Hewlett Foundation concentrates its resources on climate and clean-energy systems transformation, environmental conservation and natural-resources resilience, and strengthening public policy and institutions that enable those transitions. It funds a mix of advocacy and policy intermediaries, funder collaboratives, research centers, and targeted university programs — often to scale market/policy shifts (e.g., decarbonization, methane reduction, water resilience) and to support governance and accountability efforts internationally. Grants frequently support programmatic hubs, capacity-building or general operating support rather than direct service delivery, and the foundation also underwrites election and information‑integrity initiatives tied to democratic resilience.
The William & Flora Hewlett Foundation’s recent grantmaking is shaped by large, repeated commitments to climate infrastructure and intermediary organizations. Two multiyear grants to the Stichting European Climate Foundation reached $11.8 million in 2023 and $11.2 million in 2024 for the Climate Finance Fund, while ClimateWorks Foundation received $10 million in 2023 and again in 2024 for general operating support. Those awards sit alongside similarly large support for Climate Leadership Initiative Inc and the Climate Finance Fund’s policy ecosystem, showing a pattern of backing organizations that can move capital, policy, and coordination at scale. The foundation also funds major hubs and collaboratives that sit between research, advocacy, and implementation. Grants to United States Energy Foundation, The Energy Foundation, San Francisco Foundation, and Energy Foundation indicate a sustained role for pooled or intermediary structures rather than only direct-service work. In parallel, the foundation has supported election integrity, cyber policy, and university-based policy programs, including the Election Trust Initiative, The Bridgespan Group’s Knowledge and Innovation Fund, and Columbia University’s Center for Political Economy. Across these grants, the foundation combines very large operating support with targeted program grants that align with systems change, institutional capacity, and policy translation.
Climate and clean-energy systems dominate the foundation’s largest awards. It gave $10 million in 2024 to ClimateWorks Foundation for general operating support, and $7 million in 2024 to Energy Foundation for general operating support, reinforcing a preference for intermediary organizations that can coordinate broader climate action. A second cluster centers on climate finance and methane reduction. The William & Flora Hewlett Foundation awarded $11.2 million in 2024 to Stichting European Climate Foundation for the Climate Finance Fund, and $6.7 million in 2024 to Windward Fund for the Methane Hub. Its portfolio also reaches beyond climate. The foundation gave $5 million in 2024 to Election Trust Initiative LLC for the Election Trust Initiative and $5 million in 2024 to Florida Agricultural & Mechanical University Term for the Cyber Policy Institute (CY), linking democratic resilience and cyber policy to its broader institutional strategy.
$625M
$14.2B
$784.7M
$754.6M
Most grants fall between $50K and $300K, with a median of $150K.
25th Percentile
$50K
Median
$150K
75th Percentile
$300K
Top 10 recipient countries by grant volume for William & Flora Hewlett Foundation.
| Rank | Country | Grants | Total | Share |
|---|---|---|---|---|
| 1 | United StatesDomestic | 5,004 | $1.5B | 83.7% |
| 2 | Kenya |
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Concentrated, large-dollar grants to repeat grantees and intermediary organizations; a mix of multi-million general operating support and program-specific funding routed through funder collaboratives and public foundations rather than many small grassroots service grants.
Notable grantees: Stichting European Climate Foundation, ClimateWorks Foundation, Rockefeller Philanthropy Advisors, United States Energy Foundation, Windward Fund
Typical grants cluster at a mid-six-figure to low-seven-figure scale, with a p25 of $50,000, a median of $150,000, and a p75 of $300,000. The recent grants list also shows repeated support to the same organizations across 2023 and 2024, including multiyear awards to several climate intermediaries and election-related entities. The foundation is a regular funder, not a DAF, and it does not make program-related investments. Grantmaking appears to rely heavily on operating support and program-specific grants, often to intermediary organizations, collaboratives, and universities.
Grant recipients are heavily U.S.-based, with 82.9% of grants going to U.S. organizations and 38% landing in California. Within the U.S., Washington, DC appears repeatedly through grants to intermediaries and election-focused organizations, while San Francisco is a frequent site for climate and energy organizations. Other named recipient locations include New York, Boston, Miami, Atlanta, Denver, Sacramento, Tallahassee, and Belcourt, showing a national footprint with concentration in policy and climate hubs.
Its typical grant size is $50,000 at the 25th percentile, $150,000 at the median, and $300,000 at the 75th percentile. The recent grants list also includes much larger awards in the multi-million-dollar range to intermediaries, universities, and pooled funds.
It funds intermediaries, funder collaboratives, research centers, universities, and policy organizations. Examples in the recent grants list include ClimateWorks Foundation, Stichting European Climate Foundation, Columbia University in the City of New York, and Election Trust Initiative LLC.
Yes. Climate and clean-energy systems are a major part of its giving, including grants for the Climate Finance Fund, general operating support for climate intermediaries, the Methane Hub, and support for organizations working on decarbonization and resilience.
Yes. The recent grants list shows multiple recipients receiving support in both 2023 and 2024, including Stichting European Climate Foundation, ClimateWorks Foundation, Windward Fund, San Francisco Foundation, and Western Conservation Foundation.
Its geographic scope is national. In the recent grants data, 82.9% of grants go to U.S. recipients, and California accounts for 38% of grants, with Washington, DC, San Francisco, and other major hubs appearing frequently.
AMBER MILLER
PRESIDENT (AS OF 09/24)
2025
Source: IRS Form 990-PF, fiscal year 2025.
| 186 |
| $49.5M |
3.1% |
| 3 | United Kingdom | 132 | $38.9M | 2.2% |
| 4 | Uganda | 80 | $21.2M | 1.3% |
| 5 | Ghana | 79 | $23.3M | 1.3% |
| 6 | Senegal | 76 | $26.7M | 1.3% |
| 7 | South Africa | 65 | $16.9M | 1.1% |
| 8 | Mexico | 47 | $12.4M | 0.8% |
| 9 | Netherlands | 44 | $67.2M | 0.7% |
| 10 | Germany | 42 | $29.8M | 0.7% |
Recipient country reflects the grantee's headquarters per IRS 990-PF and Schedule F filings, not the program's implementation country.
Current and upcoming funding from William & Flora Hewlett Foundation that your nonprofit may be able to apply for.
Who can apply: Nonprofit charitable organizations in the U.S. and equivalent organizations internationally working on climate and energy policy or clean transportation.
Deadline: Letters of inquiry accepted at any time (rolling); full proposals by invitation
Who can apply: 501(c)(3) nonprofit organizations producing independent research or practical knowledge useful to foundations and grantmakers.
Deadline: Rolling
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Create a free accountDeadlines and eligibility are summarized from public sources and may change — always confirm the details on the funder's official application page before applying.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| STICHTING EUROPEAN CLIMATE FOUNDATION | DEN HAAG | $11,212,911 | 2025 | FOR THE CLIMATE FINANCE FUND |
| STICHTING EUROPEAN CLIMATE FOUNDATION | DEN HAAG | $11,000,000 | 2025 | FOR THE CLIMATE FINANCE FUND |
| CLIMATEWORKS FOUNDATION | SAN FRANCISCO, CA | $10,000,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| AMALGAMATED CHARITABLE FOUNDATION INC | WASHINGTON, DC | $10,000,000 | 2025 | FOR THE GLOBAL FUND FOR A NEW ECONOMY |
| STICHTING EUROPEAN CLIMATE FOUNDATION | DEN HAAG | $9,000,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| SAN FRANCISCO FOUNDATION | SAN FRANCISCO, CA | $7,500,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| MSI-US | WASHINGTON, DC | $7,500,000 | 2025 | FOR SUPPORT OF THE CHALLENGE FUND |
| THE ENERGY FOUNDATION | SAN FRANCISCO, CA | $7,000,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| NEW VENTURE FUND | WASHINGTON, DC | $7,000,000 | 2025 | FOR THE CREATIVITY IN TEACHING AND LEARNING POOLED FUND |
| WINDWARD FUND | WASHINGTON, DC | $6,666,666 | 2025 | FOR THE METHANE HUB |
| COMMUNITY VISION CAPITAL & CONSULTING | SAN FRANCISCO, CA | $5,500,000 | 2025 | FOR THE PERFORMING ARTS ACQUISITION FUND |
| NAACP EMPOWERMENT PROGRAMS INC | BALTIMORE, MD | $5,000,000 | 2025 | FOR SUPPORT OF THE NAACP TO ESTABLISH AN ENDOWMENT |
| ELECTION TRUST INITIATIVE LLC | WASHINGTON, DC | $5,000,000 | 2025 | FOR THE ELECTION TRUST INITIATIVE |
| UNITED STATES ENERGY FOUNDATION | SAN FRANCISCO, CA | $4,500,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| CLIMATEWORKS FOUNDATION | SAN FRANCISCO, CA | $4,000,000 | 2025 | FOR THE GLOBAL INDUSTRIAL DECARBONIZATION PROGRAM |
| INTERNATIONAL SUSTAINABLE ENERGY FOUNDATION | SAN FRANCISCO, CA | $4,000,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| CLIMATEWORKS FOUNDATION | SAN FRANCISCO, CA | $3,500,000 | 2025 | FOR SUPPORT OF U.S. FOREIGN ECONOMIC POLICY FOR GLOBAL GREEN INDUSTRIAL POLICY |
| CLIMATEWORKS FOUNDATION | SAN FRANCISCO, CA | $3,333,334 | 2025 | FOR THE GLOBAL INDUSTRY HUB INITIATIVE |
| AMALGAMATED CHARITABLE FOUNDATION INC | WASHINGTON, DC | $3,090,000 | 2025 | FOR THE DEMOCRACY FRONTLINES FUND |
| POLICYLINK | OAKLAND, CA | $3,000,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| RESOURCES LEGACY FUND | SACRAMENTO, CA | $3,000,000 | 2025 | FOR WILDFIRE STRATEGIES |
| ROCKEFELLER PHILANTHROPY ADVISORS INC | NEW YORK, NY | $3,000,000 | 2025 | FOR THE GLOBAL COMMONS ALLIANCE |
| LIBERTY HILL FOUNDATION | LOS ANGELES, CA | $3,000,000 | 2025 | FOR THE ENVIRONMENTAL LEADERSHIP INITIATIVE |
| CLIMATE AND CLEAN ENERGY EQUITY FUND OPEN GOV HUB | WASHINGTON, DC | $2,750,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| REI COOPERATIVE ACTION FUND | SUMNER, WA | $2,600,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| TARA CLIMATE LTD | SINGAPORE | $2,500,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| CLIMATEWORKS FOUNDATION | SAN FRANCISCO, CA | $2,500,000 | 2025 | FOR THE CLEAN COOLING COLLABORATIVE |
| RF CATALYTIC CAPITAL INC | NEW YORK, NY | $2,500,000 | 2025 | FOR INVEST IN OUR FUTURE |
| GEORGE WASHINGTON UNIVERSITY | WASHINGTON, DC | $2,400,000 | 2025 | FOR A SERIES OF FORUMS ON CIVIC TEACHING AS A CORE PRINCIPLE IN EDUCATION |
| WESTERN CONSERVATION FOUNDATION | DENVER, CO | $2,150,000 | 2025 | FOR THE STATE CONSERVATION PROGRAM |
| COLOROFCHANGEORG EDUCATION FUND INC | OAKLAND, CA | $2,055,308 | 2025 | FOR GENERAL OPERATING SUPPORT |
| INTERNATIONAL BUDGET PARTNERSHIP | WASHINGTON, DC | $2,000,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| ROCKEFELLER BROTHERS FUND INC | NEW YORK, NY | $2,000,000 | 2025 | FOR MULTISTAKEHOLDER CARBON NEUTRALITY STRATEGY DEVELOPMENT AND IMPLEMENTATION IN CHINA |
| MSI-US | WASHINGTON, DC | $2,000,000 | 2025 | FOR SUPPORT OF MSI'S PROGRAMS IN EAST AND FRANCOPHONE WEST AFRICA |
| WOMEN IN INFORMAL EMPLOYMENT - WEIGO LTD | MANCHESTER | $2,000,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| COMMUNITY INITIATIVES | OAKLAND, CA | $2,000,000 | 2025 | FOR COMMUNITY SCHOOLS LEARNING EXCHANGE |
| JOHNS HOPKINS UNIVERSITY | BALTIMORE, MD | $2,000,000 | 2025 | FOR THE CENTER FOR ECONOMY AND SOCIETY AT THE SNF AGORA INSTITUTE |
| UNITED STATES ENERGY FOUNDATION | SAN FRANCISCO, CA | $2,000,000 | 2025 | FOR FEDERAL AND LOCAL POWER PROGRAMS |
| NEW VENTURE FUND | WASHINGTON, DC | $2,000,000 | 2025 | FOR SUPPORT OF THE FENOMENAL FUNDS |
| ROCKEFELLER PHILANTHROPY ADVISORS INC | NEW YORK, NY | $2,000,000 | 2025 | FOR THE CLIMATE EMERGENCY COLLABORATION GROUP |
| TROUT UNLIMITED INC | ARLINGTON, VA | $1,800,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| RESOURCES LEGACY FUND | SACRAMENTO, CA | $1,800,000 | 2025 | FOR THE WESTERN ENERGY PROJECT |
| NATIONAL WILDLIFE FEDERATION | RESTON, VA | $1,750,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| FIDELITY INVESTMENTS CHARITABLE GIFT FUND | BOSTON, MA | $1,704,265 | 2025 | MATCHING GIFT OF STAFF AND BOARD MEMBERS |
| IPAS | CHAPEL HILL, NC | $1,500,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| INTERNATIONAL DEVELOPMENT RESEARCH CENTRE | OTTAWA, ON | $1,500,000 | 2025 | FOR SUPPORT OF THE PARTNERSHIP FOR EVIDENCE AND EQUITY IN RESPONSIVE SOCIAL SYSTEMS (PEERSS) |
| INTERNATIONAL INITIATIVE FOR IMPACT EVALUATION INC | WASHINGTON, DC | $1,500,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| INSTITUTO CLIMA E SOCIEDADE - ICS | RIO DE JANEIRO RJ | $1,500,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| WESTERN CONSERVATION FOUNDATION | DENVER, CO | $1,500,000 | 2025 | FOR GENERAL OPERATING SUPPORT |
| SPEAK UP AFRICA | DAKAR | $1,500,000 | 2025 | FOR SUPPORT OF THE OUAGADOUGOU PARTNERSHIP COORDINATION UNIT |
STICHTING EUROPEAN CLIMATE FOUNDATION
$11,212,911FOR THE CLIMATE FINANCE FUND
STICHTING EUROPEAN CLIMATE FOUNDATION
$11,000,000FOR THE CLIMATE FINANCE FUND
CLIMATEWORKS FOUNDATION
$10,000,000FOR GENERAL OPERATING SUPPORT
AMALGAMATED CHARITABLE FOUNDATION INC
$10,000,000FOR THE GLOBAL FUND FOR A NEW ECONOMY
STICHTING EUROPEAN CLIMATE FOUNDATION
$9,000,000FOR GENERAL OPERATING SUPPORT
SAN FRANCISCO FOUNDATION
$7,500,000FOR GENERAL OPERATING SUPPORT
MSI-US
$7,500,000FOR SUPPORT OF THE CHALLENGE FUND
THE ENERGY FOUNDATION
$7,000,000FOR GENERAL OPERATING SUPPORT
NEW VENTURE FUND
$7,000,000FOR THE CREATIVITY IN TEACHING AND LEARNING POOLED FUND
WINDWARD FUND
$6,666,666FOR THE METHANE HUB
COMMUNITY VISION CAPITAL & CONSULTING
$5,500,000FOR THE PERFORMING ARTS ACQUISITION FUND
NAACP EMPOWERMENT PROGRAMS INC
$5,000,000FOR SUPPORT OF THE NAACP TO ESTABLISH AN ENDOWMENT
ELECTION TRUST INITIATIVE LLC
$5,000,000FOR THE ELECTION TRUST INITIATIVE
UNITED STATES ENERGY FOUNDATION
$4,500,000FOR GENERAL OPERATING SUPPORT
CLIMATEWORKS FOUNDATION
$4,000,000FOR THE GLOBAL INDUSTRIAL DECARBONIZATION PROGRAM
INTERNATIONAL SUSTAINABLE ENERGY FOUNDATION
$4,000,000FOR GENERAL OPERATING SUPPORT
CLIMATEWORKS FOUNDATION
$3,500,000FOR SUPPORT OF U.S. FOREIGN ECONOMIC POLICY FOR GLOBAL GREEN INDUSTRIAL POLICY
CLIMATEWORKS FOUNDATION
$3,333,334FOR THE GLOBAL INDUSTRY HUB INITIATIVE
AMALGAMATED CHARITABLE FOUNDATION INC
$3,090,000FOR THE DEMOCRACY FRONTLINES FUND
POLICYLINK
$3,000,000FOR GENERAL OPERATING SUPPORT
RESOURCES LEGACY FUND
$3,000,000FOR WILDFIRE STRATEGIES
ROCKEFELLER PHILANTHROPY ADVISORS INC
$3,000,000FOR THE GLOBAL COMMONS ALLIANCE
LIBERTY HILL FOUNDATION
$3,000,000FOR THE ENVIRONMENTAL LEADERSHIP INITIATIVE
CLIMATE AND CLEAN ENERGY EQUITY FUND OPEN GOV HUB
$2,750,000FOR GENERAL OPERATING SUPPORT
REI COOPERATIVE ACTION FUND
$2,600,000FOR GENERAL OPERATING SUPPORT
TARA CLIMATE LTD
$2,500,000FOR GENERAL OPERATING SUPPORT
CLIMATEWORKS FOUNDATION
$2,500,000FOR THE CLEAN COOLING COLLABORATIVE
RF CATALYTIC CAPITAL INC
$2,500,000FOR INVEST IN OUR FUTURE
GEORGE WASHINGTON UNIVERSITY
$2,400,000FOR A SERIES OF FORUMS ON CIVIC TEACHING AS A CORE PRINCIPLE IN EDUCATION
WESTERN CONSERVATION FOUNDATION
$2,150,000FOR THE STATE CONSERVATION PROGRAM
COLOROFCHANGEORG EDUCATION FUND INC
$2,055,308FOR GENERAL OPERATING SUPPORT
INTERNATIONAL BUDGET PARTNERSHIP
$2,000,000FOR GENERAL OPERATING SUPPORT
ROCKEFELLER BROTHERS FUND INC
$2,000,000FOR MULTISTAKEHOLDER CARBON NEUTRALITY STRATEGY DEVELOPMENT AND IMPLEMENTATION IN CHINA
MSI-US
$2,000,000FOR SUPPORT OF MSI'S PROGRAMS IN EAST AND FRANCOPHONE WEST AFRICA
WOMEN IN INFORMAL EMPLOYMENT - WEIGO LTD
$2,000,000FOR GENERAL OPERATING SUPPORT
COMMUNITY INITIATIVES
$2,000,000FOR COMMUNITY SCHOOLS LEARNING EXCHANGE
JOHNS HOPKINS UNIVERSITY
$2,000,000FOR THE CENTER FOR ECONOMY AND SOCIETY AT THE SNF AGORA INSTITUTE
UNITED STATES ENERGY FOUNDATION
$2,000,000FOR FEDERAL AND LOCAL POWER PROGRAMS
NEW VENTURE FUND
$2,000,000FOR SUPPORT OF THE FENOMENAL FUNDS
ROCKEFELLER PHILANTHROPY ADVISORS INC
$2,000,000FOR THE CLIMATE EMERGENCY COLLABORATION GROUP
TROUT UNLIMITED INC
$1,800,000FOR GENERAL OPERATING SUPPORT
RESOURCES LEGACY FUND
$1,800,000FOR THE WESTERN ENERGY PROJECT
NATIONAL WILDLIFE FEDERATION
$1,750,000FOR GENERAL OPERATING SUPPORT
FIDELITY INVESTMENTS CHARITABLE GIFT FUND
$1,704,265MATCHING GIFT OF STAFF AND BOARD MEMBERS
IPAS
$1,500,000FOR GENERAL OPERATING SUPPORT
INTERNATIONAL DEVELOPMENT RESEARCH CENTRE
$1,500,000FOR SUPPORT OF THE PARTNERSHIP FOR EVIDENCE AND EQUITY IN RESPONSIVE SOCIAL SYSTEMS (PEERSS)
INTERNATIONAL INITIATIVE FOR IMPACT EVALUATION INC
$1,500,000FOR GENERAL OPERATING SUPPORT
INSTITUTO CLIMA E SOCIEDADE - ICS
$1,500,000FOR GENERAL OPERATING SUPPORT
WESTERN CONSERVATION FOUNDATION
$1,500,000FOR GENERAL OPERATING SUPPORT
SPEAK UP AFRICA
$1,500,000FOR SUPPORT OF THE OUAGADOUGOU PARTNERSHIP COORDINATION UNIT