
Our mission is to protect and conserve the natural environment.
The Jeremy and Hannelore Grantham Environmental Trust makes large, project-specific environmental grants, with recent awards reaching $12,000,000 to the Savanna Institute and $9,549,079 to Rare. Its giving is built around climate change mitigation, environmental conservation and biodiversity, climate communications and advocacy, scientific research, renewable energy and low-carbon technologies, carbon removal, soil health, and ocean health. The trust also makes program-related investments through its Neglected Climate Opportunities vehicle, adding an investment layer to its philanthropy. Across the recent-grants list, the trust supports organizations working on both research and public-facing climate action. Carbon Mapper received $8,000,000, while Global Witness received $6,850,000. Other large awards went to Spark Climate Solutions, ClientEarth USA, The Nature Conservancy, and Ctrees, showing an emphasis on environmental protection, legal and policy work, climate solutions, and applied research. Its mission statement is direct: to protect and conserve the natural environment. The trust’s grantmaking structure reflects that goal through restricted support to nonprofits, research centers, universities, journalists, and advocacy organizations engaged in environmental protection and climate work.
In climate and environmental research, the trust gave $8,000,000 to Carbon Mapper for grants to protect the environment, and it supported the Institute for Governance and Sustainable Development with $3,782,370. These awards point to a strong interest in scientific and policy-oriented work tied to climate and environmental change. Communications and advocacy are another clear theme. Global Witness received $6,850,000, while Rare received $9,549,079, both for grants to protect the environment. The trust also funded League of Conservation Voters Education Fund with $3,500,000, indicating sustained support for public engagement and advocacy. On conservation and land-focused solutions, the Savanna Institute received $12,000,000 and The Nature Conservancy received $4,450,000 in one year and $3,703,448 in another. The presence of Health in Harmony Inc at $2,800,000 also aligns with environmental work that connects ecosystems and communities.
$214.6M
$467.7M
$74.7M
$42.1M
Most grants fall between $800K and $3.6M, with a median of $1.8M.
25th Percentile
$800K
Median
$1.8M
75th Percentile
$3.6M
About 5% of grants go to recipients in NY.
RAMSAY RAVENEL
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Typical grants are large: the 25th percentile is $800,000, the median is $1,773,864, and the 75th percentile is $3,630,354. The recent-grants list also shows repeated awards to the same organizations across multiple years, including Savanna Institute, Rare, Carbon Mapper, Global Witness, Spark Climate Solutions, Client Earth USA, and The Nature Conservancy, which suggests ongoing relationships rather than one-off support. The trust is a regular funder and a 509(a)(3) supporting organization tied to the Grantham Foundation. It also makes program-related investments, and one investment vehicle accepts unsolicited opportunities.
The trust gives nationally, but the recipient map is heavily U.S.-based: 88 grants, or 100.0%, went to U.S. recipients in the data provided. By count, New York is the top giving state, while only 5% of grants go to Massachusetts recipients. Recent grants land in a spread of U.S. cities, including Madison, Arlington, Pasadena, Palo Alto, San Francisco, Calabasas, Washington, DC, Los Angeles, Boston, and Basalt. The pattern reflects national environmental grantmaking rather than a single regional focus.
Its listed focus areas include climate change mitigation and adaptation, environmental conservation and biodiversity, climate communications and advocacy, scientific research on climate and environment, renewable energy and low-carbon technologies, carbon removal and sequestration, soil health and sustainable agriculture, and ocean health.
Typical grant sizes are substantial: the 25th percentile is $800,000, the median is $1,773,864, and the 75th percentile is $3,630,354.
Yes. The recent-grants list shows repeat awards across multiple years to Savanna Institute, Rare, Carbon Mapper, Global Witness, Spark Climate Solutions, Client Earth USA, and The Nature Conservancy.
The trust gives nationally, and the recipient-country distribution is entirely U.S.-based in the data provided. New York is the top state by grant count, while Massachusetts accounts for 5% of grants.
Yes. It makes program-related investments through the Neglected Climate Opportunities vehicle, alongside its grantmaking.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| SAVANNA INSTITUTE | MADISON, WI | $12,000,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| RARE | ARLINGTON, VA | $9,549,079 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| GLOBAL WITNESS | PALO ALTO, CA | $6,850,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| SPARK CLIMATE SOLUTIONS | SAN FRANCISCO, CA | $6,000,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| CLIENT EARTH USA | CALABASAS, CA | $5,000,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| CTREES | LOS ANGELES, CA | $4,000,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| INSTITUTE FOR GOVERNANCE AND SUSTAINABLE DEVELOPMENT | WASHINGTON, DC | $3,782,370 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| THE NATURE CONSERVANCY | ARLINGTON, VA | $3,703,448 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| CONSERVATION LAW FOUNDATION | BOSTON, MA | $3,507,139 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| WORLD WILDLIFE FUND | WASHINGTON, DC | $3,483,828 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ROCKY MOUNTAIN INSTITUTE | BASALT, CO | $3,445,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| HOUR GLASS CLIMATE INC | MONTCLAIR, NJ | $3,100,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| WINDWARD FUND | WASHINGTON, DC | $3,000,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| LEAGUE OF CONSERVATION VOTERS EDUCATION FUND | WASHINGTON, DC | $2,500,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| HEALTH IN HARMONY INC | PORTLAND, OR | $2,376,945 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| LEAGUE OF CONSERVATION VOTERS EDUCATION FUND | WASHINGTON, DC | $2,000,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| OCEAN VISION INC | LEESBURG, VA | $2,000,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| CARBON180 | WASHINGTON, DC | $1,975,845 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| EARTHJUSTICE | SAN FRANCISCO, CA | $1,600,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| NATURAL RESOURCES DEFENSE COUNCIL | NEW YORK, NY | $1,600,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| SUSTAINABLE MARKETS FOUNDATION | NEW YORK, NY | $1,400,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| RAINFOREST ACTION NETWORK | SAN FRANCISCO, CA | $1,165,872 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| SPARK CLIMATE SOLUTIONS INC | SAN FRANCISCO, CA | $1,000,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| SOCIETY FOR THE PROTECTION OF UNDERGROUND NETWORKS | DOVER, DE | $1,000,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ENVIRONMENTAL HEALTH SCIENCES | BOZEMAN, MT | $924,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| EARTHJUSTICE | SAN FRANCISCO, CA | $900,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| CENTER FOR ENVIRONMENTAL HEALTH | OAKLAND, CA | $800,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| DEFEND OUR HEALTH | PORTLAND, ME | $800,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| THIRD ACT EDUCATIONAL FUND INC | NASSAU, NY | $600,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ALTA SEADS CONSERVANCY | SAN PEDRO, CA | $600,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| THE NATURE CONSERVANCY | ARLINGTON, VA | $551,684 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| RARE | ARLINGTON, VA | $519,536 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| INSIDE CLIMATE NEWS | BROOKLYN, NY | $500,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ONE ACRE FUND | HIGLAND PARK, IL | $500,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ONE ACRE FUND | HIGLAND PARK, IL | $300,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ALASKA COMMUNITY ACTION ON TOXICS | ANCHORAGE, AK | $300,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ENVIRONMENTAL WORKING GROUP | WASHINGTON, DC | $300,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ALASKA COMMUNITY ACTION ON TOXICS | ANCHORAGE, AK | $300,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ECDYSIS FOUNDATION | ESTELLINE, SD | $250,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| CENTER FOR INTERNATIONAL ENVIRONMENTAL LAW | WASHINGTON, DC | $250,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ENVIRONMENTAL LAW INSTITUTE | WASHINGTON, DC | $120,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ENVIRONMENTAL WORKING GROUP INC | WASHINGTON, DC | $100,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| CONSERVATION LAW FOUNDATION | BOSTON, MA | $92,861 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| ENVIRONMENTAL HEALTH SCIENCES | BOZEMAN, MT | $76,000 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| RAINFOREST ACTION NETWORK | SAN FRANCISCO, CA | $34,128 | 2025 | GRANTS TO PROTECT THE ENVIRONMENT |
| SAVANNA INSTITUTE | MADISON, WI | $12,000,000 | 2024 | GRANTS TO PROTECT THE ENVIRONMENT |
| RARE | ARLINGTON, VA | $9,549,079 | 2024 | GRANTS TO PROTECT THE ENVIRONMENT |
| CARBON MAPPER | PASADENA, CA | $8,000,000 | 2024 | GRANTS TO PROTECT THE ENVIRONMENT |
| GLOBAL WITNESS | PALO ALTO, CA | $6,850,000 | 2024 | GRANTS TO PROTECT THE ENVIRONMENT |
| SPARK CLIMATE SOLUTIONS | SAN FRANCISCO, CA | $6,000,000 | 2024 | GRANTS TO PROTECT THE ENVIRONMENT |
SAVANNA INSTITUTE
$12,000,000GRANTS TO PROTECT THE ENVIRONMENT
RARE
$9,549,079GRANTS TO PROTECT THE ENVIRONMENT
GLOBAL WITNESS
$6,850,000GRANTS TO PROTECT THE ENVIRONMENT
SPARK CLIMATE SOLUTIONS
$6,000,000GRANTS TO PROTECT THE ENVIRONMENT
CLIENT EARTH USA
$5,000,000GRANTS TO PROTECT THE ENVIRONMENT
CTREES
$4,000,000GRANTS TO PROTECT THE ENVIRONMENT
INSTITUTE FOR GOVERNANCE AND SUSTAINABLE DEVELOPMENT
$3,782,370GRANTS TO PROTECT THE ENVIRONMENT
THE NATURE CONSERVANCY
$3,703,448GRANTS TO PROTECT THE ENVIRONMENT
CONSERVATION LAW FOUNDATION
$3,507,139GRANTS TO PROTECT THE ENVIRONMENT
WORLD WILDLIFE FUND
$3,483,828GRANTS TO PROTECT THE ENVIRONMENT
ROCKY MOUNTAIN INSTITUTE
$3,445,000GRANTS TO PROTECT THE ENVIRONMENT
HOUR GLASS CLIMATE INC
$3,100,000GRANTS TO PROTECT THE ENVIRONMENT
WINDWARD FUND
$3,000,000GRANTS TO PROTECT THE ENVIRONMENT
LEAGUE OF CONSERVATION VOTERS EDUCATION FUND
$2,500,000GRANTS TO PROTECT THE ENVIRONMENT
HEALTH IN HARMONY INC
$2,376,945GRANTS TO PROTECT THE ENVIRONMENT
LEAGUE OF CONSERVATION VOTERS EDUCATION FUND
$2,000,000GRANTS TO PROTECT THE ENVIRONMENT
OCEAN VISION INC
$2,000,000GRANTS TO PROTECT THE ENVIRONMENT
CARBON180
$1,975,845GRANTS TO PROTECT THE ENVIRONMENT
EARTHJUSTICE
$1,600,000GRANTS TO PROTECT THE ENVIRONMENT
NATURAL RESOURCES DEFENSE COUNCIL
$1,600,000GRANTS TO PROTECT THE ENVIRONMENT
SUSTAINABLE MARKETS FOUNDATION
$1,400,000GRANTS TO PROTECT THE ENVIRONMENT
RAINFOREST ACTION NETWORK
$1,165,872GRANTS TO PROTECT THE ENVIRONMENT
SPARK CLIMATE SOLUTIONS INC
$1,000,000GRANTS TO PROTECT THE ENVIRONMENT
SOCIETY FOR THE PROTECTION OF UNDERGROUND NETWORKS
$1,000,000GRANTS TO PROTECT THE ENVIRONMENT
ENVIRONMENTAL HEALTH SCIENCES
$924,000GRANTS TO PROTECT THE ENVIRONMENT
EARTHJUSTICE
$900,000GRANTS TO PROTECT THE ENVIRONMENT
CENTER FOR ENVIRONMENTAL HEALTH
$800,000GRANTS TO PROTECT THE ENVIRONMENT
DEFEND OUR HEALTH
$800,000GRANTS TO PROTECT THE ENVIRONMENT
THIRD ACT EDUCATIONAL FUND INC
$600,000GRANTS TO PROTECT THE ENVIRONMENT
ALTA SEADS CONSERVANCY
$600,000GRANTS TO PROTECT THE ENVIRONMENT
THE NATURE CONSERVANCY
$551,684GRANTS TO PROTECT THE ENVIRONMENT
RARE
$519,536GRANTS TO PROTECT THE ENVIRONMENT
INSIDE CLIMATE NEWS
$500,000GRANTS TO PROTECT THE ENVIRONMENT
ONE ACRE FUND
$500,000GRANTS TO PROTECT THE ENVIRONMENT
ONE ACRE FUND
$300,000GRANTS TO PROTECT THE ENVIRONMENT
ALASKA COMMUNITY ACTION ON TOXICS
$300,000GRANTS TO PROTECT THE ENVIRONMENT
ENVIRONMENTAL WORKING GROUP
$300,000GRANTS TO PROTECT THE ENVIRONMENT
ALASKA COMMUNITY ACTION ON TOXICS
$300,000GRANTS TO PROTECT THE ENVIRONMENT
ECDYSIS FOUNDATION
$250,000GRANTS TO PROTECT THE ENVIRONMENT
CENTER FOR INTERNATIONAL ENVIRONMENTAL LAW
$250,000GRANTS TO PROTECT THE ENVIRONMENT
ENVIRONMENTAL LAW INSTITUTE
$120,000GRANTS TO PROTECT THE ENVIRONMENT
ENVIRONMENTAL WORKING GROUP INC
$100,000GRANTS TO PROTECT THE ENVIRONMENT
CONSERVATION LAW FOUNDATION
$92,861GRANTS TO PROTECT THE ENVIRONMENT
ENVIRONMENTAL HEALTH SCIENCES
$76,000GRANTS TO PROTECT THE ENVIRONMENT
RAINFOREST ACTION NETWORK
$34,128GRANTS TO PROTECT THE ENVIRONMENT
SAVANNA INSTITUTE
$12,000,000GRANTS TO PROTECT THE ENVIRONMENT
RARE
$9,549,079GRANTS TO PROTECT THE ENVIRONMENT
CARBON MAPPER
$8,000,000GRANTS TO PROTECT THE ENVIRONMENT
GLOBAL WITNESS
$6,850,000GRANTS TO PROTECT THE ENVIRONMENT
SPARK CLIMATE SOLUTIONS
$6,000,000GRANTS TO PROTECT THE ENVIRONMENT