Hampshire Foundation Inc. concentrates its giving on environmental and climate-focused advocacy, legal capacity, and community resilience—prioritizing organizations that drive policy change, strategic litigation, and on-the-ground rights and tenure work. Grants are large and targeted, often supporting intermediary/advisory groups and networks that scale climate mitigation, air quality improvements, sustainable city initiatives, and land/tenure security. The foundation favors organizations that blend policy advocacy with technical or legal expertise rather than small grassroots service providers.
Hampshire Foundation Inc. uses large program-support grants to back climate, nature, and rights-based organizations that work through policy, litigation, and intermediary funding structures. Its recent funding includes $2,000,000 to Windward Fund for program support, $1,060,000 to Clean Air Task Force, and $1,005,762 to ClientEarth, showing a pattern of high-value grants to organizations with legal, advocacy, and campaign capacity. The foundation’s giving reaches beyond one issue area, but the common thread is work that links environmental protection with resilience, livelihoods, and governance. Recent awards also include Tenure Facility for land tenure security, Namati for legal empowerment, and Sustainable Ct for climate resilience in Connecticut. It also supports grantmaking and advisory platforms such as Rockefeller Philanthropy Advisors and Meliore Foundation, indicating use of intermediaries alongside direct nonprofit grants. Grant purposes in the recent record are mostly program support, with some operational support. The mix suggests Hampshire Foundation Inc. funds established organizations that can absorb significant unrestricted or semi-restricted awards and deploy them in advocacy, legal strategy, and field programs at scale.
Climate policy advocacy is a core theme. The foundation gave $2,000,000 to Windward Fund for program support and $1,000,000 in the prior year, pointing to repeated support for intermediary climate advocacy work. It also awarded $1,060,000 to Clean Air Task Force for program support, alongside $560,000 in 2024, which links the funder to clean air and decarbonization advocacy. Legal and tenure work is another clear strand. Hampshire Foundation Inc. granted $1,005,762 to ClientEarth for program support and $665,000 to Tenure Facility, with an earlier $250,000 award to Tenure Facility in 2024. It also gave $600,000 to Namati Inc for program support, aligning with legal empowerment and rights-based environmental governance. The portfolio also includes resilience and sustainable livelihoods. Examples include $725,480 to Sustainable Ct for program support, $531,290 to Spark Microgrants, and $489,676 to Tree Aid. Those grants show attention to community resilience, local support systems, and nature-linked livelihoods.
Typical awards are substantial: the p25 grant is $48,750, the median is $100,000, and the p75 is $200,000. The recent list shows a much higher upper tail, with multiple six- and seven-figure grants. Hampshire Foundation Inc. is a regular funder and a program-related investor, which fits the presence of recurring program support and some operational support awards. Several recipients appear across multiple years, including Windward Fund, Clean Air Task Force, Sustainable Ct, and Tenure Facility, showing repeat support rather than one-off giving.
$16.5M
$122.1M
$13.5M
$17.3M
Most grants fall between $49K and $200K, with a median of $100K.
25th Percentile
$49K
Median
$100K
75th Percentile
$200K
About 0% of grants go to recipients in CA.
Top 10 recipient countries by grant volume for Hampshire Foundation.
| Rank | Country | Grants | Total | Share |
|---|---|---|---|---|
| 1 | United StatesDomestic | 66 | $16.9M | 60.0% |
| 2 | United Kingdom | 12 | $3.4M |
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Concentrated, high-dollar grants to a small set of sophisticated national and international organizations; repeat funding to select grantees; preference for intermediary, policy/advocacy, and legal-capacity organizations rather than many small grants.
Notable grantees: Windward Fund, Clean Air Task Force, ClientEarth, Tenure Facility, Namati Inc
Grantmaking is national, with the largest share of recipients in the United States and none in Delaware. California is the top state by grant count. Recent U.S. recipients include Boston, Washington, DC, New York City, San Diego, Menlo Park, Arlington, and Willimantic. The record also includes non-U.S. recipients in London, Brussels, Geneva, Bristol, Stockholm, Montreuil, Bukit Cimanggu City, and Gravenhage, indicating a broad cross-border portfolio.
Its recent grants center on climate resilience, climate policy advocacy, clean air and decarbonization, environmental litigation, land tenure security, and legal empowerment. Examples in the record include support for Windward Fund, Clean Air Task Force, ClientEarth, Tenure Facility, and Namati Inc.
The grant distribution is large relative to many foundations: p25 is $48,750, median grant size is $100,000, and p75 is $200,000. The recent list also includes several awards above $500,000 and a $2,000,000 grant.
Yes. The recent record shows repeat support for Windward Fund in 2024 and 2025, Clean Air Task Force in 2024 and 2025, Sustainable Ct in 2024 and 2025, and Tenure Facility in 2024 and 2025.
The top state by grant count is California. The recipient-country data shows most grants go to U.S.-based organizations overall, with additional recipients in the UK, the Netherlands, Norway, Finland, France, Sweden, Mali, and Kenya.
The active grant programs listed here are marked as not accepting unsolicited requests, including Connecticut Climate Partners, Global Climate Partners, General Grantmaking, and Global Livelihood Partners.
2025
Source: IRS Form 990-PF, fiscal year 2025.
| 3 | Peru | 12 | $636K | 10.9% |
| 4 | Netherlands | 5 | $1.6M | 4.5% |
| 5 | Norway | 3 | $468K | 2.7% |
| 6 | France | 2 | $557K | 1.8% |
| 7 | Sweden | 2 | $500K | 1.8% |
| 8 | Finland | 2 | $400K | 1.8% |
| 9 | Mali | 2 | $275K | 1.8% |
| 10 | Belgium | 1 | $1.2M | 0.9% |
Recipient country reflects the grantee's headquarters per IRS 990-PF and Schedule F filings, not the program's implementation country.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| WINDWARD FUND | WASHINGTON, DC | $2,000,000 | 2025 | PROGRAM SUPPORT |
| MELIORE FOUNDATION | BRUSSELS | $1,150,000 | 2025 | PROGRAM SUPPORT |
| CLEAN AIR TASK FORCE | BOSTON, MA | $1,060,000 | 2025 | PROGRAM SUPPORT |
| CLIENTEARTH | LONDON | $1,005,762 | 2025 | PROGRAM SUPPORT |
| TENURE FACILITY | NEW YORK CITY, NY | $665,000 | 2025 | PROGRAM SUPPORT |
| NAMATI INC | WASHINGTON DC, WA | $600,000 | 2025 | PROGRAM SUPPORT |
| SPARK MICROGRANTS | NEW YORK, NY | $531,290 | 2025 | PROGRAM SUPPORT |
| ROCKEFELLER PHILANTHROPY ADVISORS | NEW YORK, NY | $500,000 | 2025 | PROGRAM SUPPORT |
| VISIONSPRING INC | NEW YORK, NY | $500,000 | 2025 | OPERATIONAL SUPPORT |
| OUR COMMON HOME ASSOCIATION | GENEVA | $500,000 | 2025 | PROGRAM SUPPORT |
| FLORESTA USA INC | SAN DIEGO, CA | $500,000 | 2025 | PROGRAM SUPPORT |
| TREE AID | BRISTOL | $489,676 | 2025 | PROGRAM SUPPORT |
| THE NATURE CONSERVANCY | ARLINGTON, VA | $400,000 | 2025 | PROGRAM SUPPORT |
| MONGABAY | MENLO PARK, CA | $400,000 | 2025 | PROGRAM SUPPORT |
| SUSTAINABLE CT | WILLIMANTIC, CT | $355,270 | 2025 | PROGRAM SUPPORT |
| STITCHING FERN | MONTREUIL | $312,019 | 2025 | PROGRAM SUPPORT |
| RAINFOREST FOUNDATION | LONDON | $300,000 | 2025 | PROGRAM SUPPORT |
| FRIENDS OF RAISING THE VILLAGE INC | NEW YORK, NY | $250,000 | 2025 | OPERATIONAL SUPPORT |
| PROXIMITY DESIGNS | SOUTH PASADENA, CA | $250,000 | 2025 | PROGRAM SUPPORT |
| BRIDGES TO PROSPERITY INC | DENVER, CO | $250,000 | 2025 | OPERATIONAL SUPPORT |
| THE NUDGE FOUNDATION | IRVING, TX | $250,000 | 2025 | OPERATIONAL SUPPORT |
| THE BUREAU OF INVESTIGATIVE JOURNALISM | LONDON | $250,000 | 2025 | PROGRAM SUPPORT |
| BOMA FOUNDATION | MANCHESTER CENTER, VT | $250,000 | 2025 | PROGRAM SUPPORT |
| EDUCATE | BROOKLYN, NY | $250,000 | 2025 | HELP COVER COSTS AND |
| YAYASAN AURIGA NUSANTARA | BUKIT CIMANGGU CITY | $250,000 | 2025 | PROGRAM SUPPORT |
| CO-IMPACT PHILANTROPHIC FUNDS | NEWTOWN, CT | $250,000 | 2025 | PROGRAM SUPPORT |
| VILLAGE ENTERPRISE | SAN CARLOS, CA | $250,000 | 2025 | PROGRAM SUPPORT |
| ASSOCIATION SHERPA | PARIS | $245,173 | 2025 | PROGRAM SUPPORT |
| SAVE THE SOUND (CT CLIMATE AWARENESS CAMPAIGN) | NEW HAVEN, CT | $222,000 | 2025 | PROGRAM SUPPORT |
| ENVIRONMENTAL INVESTIGATION AGENCY | WASHINGTON, DC | $200,000 | 2025 | PROGRAM SUPPORT |
| CENTER FOR CLIMATE CRIME ANALYSIS | THE HAGUE | $200,000 | 2025 | PROGRAM SUPPORT |
| GREENPEACE LTD | WASHINGTON, DC | $200,000 | 2025 | PROGRAM SUPPORT |
| PLAN VIVO FOUNDATION | EDINBURGH | $190,864 | 2025 | TO SUPPORT THE IMPROVEMENT |
| BELLINGCAT FUND | OVERLAND PARK, KS | $175,000 | 2025 | PROGRAM SUPPORT |
| CARBON LIMITS AS | OSLO | $156,086 | 2025 | PROGRAM SUPPORT |
| RESOURCES LEGACY FUND | SACRAMENTO, CA | $150,000 | 2025 | PROGRAM SUPPORT |
| POWER SHIFT AFRICA | NAIROBI | $150,000 | 2025 | PROGRAM SUPPORT |
| BLUE MARINE FOUNDATION | LONDON | $130,814 | 2025 | TO SUPPORT BLUE MARINE |
| MYAGRO FARMS | THIES | $125,000 | 2025 | MOVE SMALL HOLDER FARMERS |
| ONE ACRE FUND | HIGHLAND PARK, IL | $100,000 | 2025 | SERVE SMALL SCALE FARMERS |
| YALE UNIVERSITY | NEW HAVEN, CT | $100,000 | 2025 | PROGRAM SUPPORT |
| INSIDE CLIMATE NEWS | BROOKLYN, NY | $100,000 | 2025 | PROGRAM SUPPORT |
| PEOPLE'S ACTION FOR CLEAN ENERGY (PACE) | WEST SIMSBURY, CT | $100,000 | 2025 | HEAT PUMP PROGRAM FOR |
| MEDHA CORP | NATICK, MA | $75,000 | 2025 | PROGRAM SUPPORT |
| THE HUMANE LEAGUE | ROCKVILLE, MD | $50,000 | 2025 | PROGRAM SUPPORT |
| INTER RELIGIOUS ECO-JUSTICE NETWORK | PRESTON, CA | $30,000 | 2025 | PROGRAM SUPPORT |
| CT LEAGUE OF CONSERVATION VOTERS | HARTFORD, CT | $15,000 | 2025 | PROGRAM SUPPORT |
| GREAT MOUNTAIN FOREST | FALLS VILLAGE, CT | $10,000 | 2025 | PROGRAM SUPPORT |
| CONNECTICUT FORUM | HARTFORD, CT | $10,000 | 2025 | PROGRAM SUPPORT |
| GREEN SCHOOLS ALLIANCE | NEW YORK, NY | $10,000 | 2025 | PROGRAM SUPPORT |
WINDWARD FUND
$2,000,000PROGRAM SUPPORT
MELIORE FOUNDATION
$1,150,000PROGRAM SUPPORT
CLEAN AIR TASK FORCE
$1,060,000PROGRAM SUPPORT
CLIENTEARTH
$1,005,762PROGRAM SUPPORT
TENURE FACILITY
$665,000PROGRAM SUPPORT
NAMATI INC
$600,000PROGRAM SUPPORT
SPARK MICROGRANTS
PROGRAM SUPPORT
ROCKEFELLER PHILANTHROPY ADVISORS
$500,000PROGRAM SUPPORT
VISIONSPRING INC
$500,000OPERATIONAL SUPPORT
OUR COMMON HOME ASSOCIATION
$500,000PROGRAM SUPPORT
FLORESTA USA INC
$500,000PROGRAM SUPPORT
TREE AID
$489,676PROGRAM SUPPORT
THE NATURE CONSERVANCY
$400,000PROGRAM SUPPORT
MONGABAY
$400,000PROGRAM SUPPORT
SUSTAINABLE CT
$355,270PROGRAM SUPPORT
STITCHING FERN
$312,019PROGRAM SUPPORT
RAINFOREST FOUNDATION
$300,000PROGRAM SUPPORT
FRIENDS OF RAISING THE VILLAGE INC
$250,000OPERATIONAL SUPPORT
PROXIMITY DESIGNS
$250,000PROGRAM SUPPORT
BRIDGES TO PROSPERITY INC
$250,000OPERATIONAL SUPPORT
THE NUDGE FOUNDATION
$250,000OPERATIONAL SUPPORT
THE BUREAU OF INVESTIGATIVE JOURNALISM
$250,000PROGRAM SUPPORT
BOMA FOUNDATION
$250,000PROGRAM SUPPORT
EDUCATE
$250,000HELP COVER COSTS AND
YAYASAN AURIGA NUSANTARA
$250,000PROGRAM SUPPORT
CO-IMPACT PHILANTROPHIC FUNDS
$250,000PROGRAM SUPPORT
VILLAGE ENTERPRISE
$250,000PROGRAM SUPPORT
ASSOCIATION SHERPA
$245,173PROGRAM SUPPORT
SAVE THE SOUND (CT CLIMATE AWARENESS CAMPAIGN)
$222,000PROGRAM SUPPORT
ENVIRONMENTAL INVESTIGATION AGENCY
$200,000PROGRAM SUPPORT
CENTER FOR CLIMATE CRIME ANALYSIS
$200,000PROGRAM SUPPORT
GREENPEACE LTD
$200,000PROGRAM SUPPORT
PLAN VIVO FOUNDATION
$190,864TO SUPPORT THE IMPROVEMENT
BELLINGCAT FUND
$175,000PROGRAM SUPPORT
CARBON LIMITS AS
$156,086PROGRAM SUPPORT
RESOURCES LEGACY FUND
$150,000PROGRAM SUPPORT
POWER SHIFT AFRICA
$150,000PROGRAM SUPPORT
BLUE MARINE FOUNDATION
$130,814TO SUPPORT BLUE MARINE
MYAGRO FARMS
$125,000MOVE SMALL HOLDER FARMERS
ONE ACRE FUND
$100,000SERVE SMALL SCALE FARMERS
YALE UNIVERSITY
$100,000PROGRAM SUPPORT
INSIDE CLIMATE NEWS
$100,000PROGRAM SUPPORT
PEOPLE'S ACTION FOR CLEAN ENERGY (PACE)
$100,000HEAT PUMP PROGRAM FOR
MEDHA CORP
$75,000PROGRAM SUPPORT
THE HUMANE LEAGUE
$50,000PROGRAM SUPPORT
INTER RELIGIOUS ECO-JUSTICE NETWORK
$30,000PROGRAM SUPPORT
CT LEAGUE OF CONSERVATION VOTERS
$15,000PROGRAM SUPPORT
GREAT MOUNTAIN FOREST
$10,000PROGRAM SUPPORT
CONNECTICUT FORUM
$10,000PROGRAM SUPPORT
GREEN SCHOOLS ALLIANCE
$10,000PROGRAM SUPPORT