
A multi-generational family foundation that invests in creative solutions to critical problems, supporting initiatives at the community, national, and international levels across environmental, social, and public policy sectors.
A defining thread in The William H Donner Foundation Inc’s recent grantmaking is support for practical projects that move from research or advocacy into implementation. The foundation backed a dementia-care navigation roadmap with $220,462 to Harvard University in 2024 and $156,000 to Harvard University in 2023 for Ariadne Labs’ formula-focused version of that work. It also funded conservation and public-interest initiatives at meaningful scale, including $225,000 to Monterey Bay Aquarium Foundation for the Monterey Bay Aquarium Sea Otter Program and $204,100 to Common Counsel Foundation for Native Voices Rising. The foundation’s portfolio reaches across environmental, social, and public policy sectors, with grants to universities, advocacy groups, conservation organizations, and humanitarian-oriented nonprofits. Several awards are unrestricted general support, while others name a specific program or capacity-building purpose. Its recent activity also shows attention to civic institutions, health-related research, and culturally grounded conservation efforts. The grant list suggests a multi-generational family foundation that uses discretionary funding to support organizations working on critical problems at national and international scales, while still making some investments in community-based work.
In conservation, the foundation supported species and habitat work through a $225,000 grant to Monterey Bay Aquarium Foundation for the Monterey Bay Aquarium Sea Otter Program and a $150,000 grant to Turtle Survival Alliance for general support. For indigenous-led advocacy, it gave $204,100 to Common Counsel Foundation for Native Voices Rising and $150,000 to Honor the Earth for general support. Public policy and civic work also appears in grants such as $250,000 to National Center for Public Policy Research Inc for general support and $207,000 to Bridgeusa Group for Investing in the Future of Democracy. On the health side, the foundation funded trachoma elimination in Amhara, Ethiopia through The Carter Center and supported family navigation in dementia care through Harvard-affiliated work.
Typical grants cluster around modest-to-mid six figures: the p25 is $10,000, the median is $20,000, and the p75 is $30,000. Recent awards show both large general-support grants and program-specific grants, including repeated support for some recipients across multiple years. The foundation is a regular funder with annual grantmaking of $32,858,874 and total assets of $200,687,998. It does not accept unsolicited letters of inquiry and states that grantmaking is by invitation only. The recent record also shows a mix of one-off awards and recurring relationships, including multi-year support for organizations such as Harvard University, Humanity in Action Inc, and The Carter Center.
$10.4M
$200.7M
$6.1M
$15M
Most grants fall between $10K and $30K, with a median of $20K.
25th Percentile
$10K
Median
$20K
75th Percentile
$30K
About 15% of grants go to recipients in CA.
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Grantmaking is national, with all listed recipient-country activity in the US. DC stands out as the top state by grant count, even though the foundation itself is headquartered in Tarrytown, New York. Recent recipient cities include Washington, DC; Brooklyn, New York; Boston, Massachusetts; Rapid City, South Dakota; and Monterey, California. New York accounts for 15% of grants to recipients in the HQ state, showing a meaningful but not dominant in-state presence.
It is invitation only and does not regularly respond to letters of inquiry or unsolicited requests. The active grant program is described as General Grantmaking (Invitation-Only).
The foundation supports organizations working in environmental, social, and public policy sectors. Recent grants also show support for universities, conservation groups, advocacy organizations, humanitarian relief, and health-related initiatives.
The grant-size distribution centers on relatively small awards, with p25 at $10,000, median at $20,000, and p75 at $30,000. Recent grants also include larger six-figure awards, so the program ranges from modest support to significant project funding.
Its top state by grant count is DC. The recipient-country distribution is entirely US-based in the data provided, and New York recipients account for 15% of grants to the foundation’s HQ state.
Yes. The recent grants list shows repeated support for organizations such as Humanity in Action Inc, The Carter Center, Harvard University, Society for the Preservation of the Great American Songbook Inc, and Adventurers and Scientists for Conservation across multiple years.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| GRASSROOTS INTERNATIONAL INC | JAMAICA PLAIN, MA | $354,100 | 2025 | GENERAL SUPPORT |
| HUMANITY IN ACTION INC | BROOKLYN, NY | $250,000 | 2025 | GENERAL SUPPORT |
| SOCIETY FOR THE PRESERVATION OF THE GREAT AMERICAN SONGBOOK INC | FARMINGTON, CT | $250,000 | 2025 | GENERAL SUPPORT |
| PRESIDENT AND FELLOWS OF HARVARD COLLEGE | BOSTON, MA | $249,000 | 2025 | GENERAL SUPPORT |
| MONTEREY BAY AQUARIUM FOUNDATION | MONTEREY, CA | $238,200 | 2025 | GENERAL SUPPORT |
| COMMON COUNSEL FOUNDATION | OAKLAND, CA | $204,100 | 2025 | NATIVE VOICES RISING |
| PRESERVATION HALL FOUNDATION INC | NEW ORLEANS, LA | $185,650 | 2025 | GENERAL SUPPORT |
| ADVENTURERS AND SCIENTISTS FOR CONSERVATION | BOZEMAN, MT | $175,000 | 2025 | GENERAL SUPPORT |
| UNIVERSITY OF CALIFORNIA SAN FRANCISCO | SAN FRANCISCO, CA | $150,000 | 2025 | GENERAL SUPPORT |
| TURTLE SURVIVAL ALLIANCE | N CHARLESTON, SC | $150,000 | 2025 | GENERAL SUPPORT |
| NP2 | GREENBRAE, CA | $150,000 | 2025 | GENERAL SUPPORT |
| WEIL CORNELL MEDICINE | NEW YORK, NY | $140,000 | 2025 | GENERAL SUPPORT |
| INDIGENOUS MEDICINE CONSERVATION FUND | SANTA ROSA, CA | $125,000 | 2025 | GENERAL SUPPORT |
| MEDIA RESEARCH CENTER INC | HERNDON, VA | $125,000 | 2025 | GENERAL SUPPORT |
| SMITHSONIAN INSTITUTE | EDGEWATER, MD | $120,000 | 2025 | GENERAL SUPPORT |
| CATHOLIC HEALTH INITIATIVES COLORADO FOUNDATION | COLORADO SPRINGS, CO | $120,000 | 2025 | FLIGHT FOR LIFE COLORADO FY25 |
| DAVIDSON COLLEGE | DAVIDSON, NC | $113,100 | 2025 | GENERAL SUPPORT |
| AMAZON WATCH | OAKLAND, CA | $110,000 | 2025 | GENERAL SUPPORT |
| BRIDGEUSA GROUP | SAN FRANCISCO, CA | $105,000 | 2025 | GENERAL SUPPORT |
| NATIONAL CENTER FOR PUBLIC POLICY RESEARCH INC | WASHINGTON, DC | $100,000 | 2025 | GENERAL SUPPORT |
| CITIZEN SCHOOLS INC | BOSTON, MA | $100,000 | 2025 | GENERAL SUPPORT |
| CHABOT SPACE & SCIENCE CENTER FOUNDATION | OAKLAND, CA | $100,000 | 2025 | BUILDING A DIVERSE WORKFORCE PIPELINE AND A CAREER LAUNCH FOR THE AEROSPACE SECTOR |
| PROJECT ORBIS INTERNATIONAL INC | NEW YORK, NY | $100,000 | 2025 | GENERAL SUPPORT |
| CHABOT SPACE & SCIENCE CENTER FOUNDATION | OAKLAND, CA | $100,000 | 2025 | GENERAL SUPPORT |
| WITNESS INC | NEW YORK, NY | $100,000 | 2025 | GENERAL SUPPORT |
| CHILDRENS HEALTH DEFENSE | FRANKLIN LAKES, NJ | $100,000 | 2025 | ESTATE OF GEORGE WATTS JR V LLOYD J AUSTIN III |
| COMMUNITY OF CONDON FOR THE PRESERVATION OF SWAN VALLEY | CONDON, MT | $100,000 | 2025 | GENERAL SUPPORT |
| BUCK INSTITUTE FOR RESEARCH ON AGING | NOVATO, CA | $100,000 | 2025 | GENERAL SUPPORT |
| HELEN WOODWARD ANIMAL CENTER | RCHO SANTA FE, CA | $85,000 | 2025 | GENERAL SUPPORT |
| EXETER HOSPITAL INC | EXETER, NH | $80,000 | 2025 | GENERAL SUPPORT |
| OCONEE COUNTY HUMANE SOCIETY INC | SENECA, SC | $80,000 | 2025 | GENERAL SUPPORT |
| INTERNATIONAL FREEDOM EDUCATIONAL FOUNDATION | MCLEAN, VA | $77,000 | 2025 | GENERAL SUPPORT |
| LEWA WILDLIFE CONSERVANCY USA | NEW YORK, NY | $75,000 | 2025 | GENERAL SUPPORT |
| INQUIRING SYSTEMS INC -BIOFIELD COLLECTIVE | SANTA ROSA, CA | $75,000 | 2025 | GENERAL SUPPORT |
| CEDARS-SINAI MEDICAL CENTER | LOS ANGELES, CA | $75,000 | 2025 | GENERAL SUPPORT |
| OKIZU FOUNDATION | NOVATO, CA | $75,000 | 2025 | GENERAL SUPPORT |
| TEACHING WELL INC | OAKLAND, CA | $73,000 | 2025 | GENERAL SUPPORT |
| MADRE INC | NEW YORK, NY | $66,100 | 2025 | GENERAL SUPPORT |
| THE PRAXIS GROUP | CORTE MADERA, CA | $65,000 | 2025 | GENERAL SUPPORT |
| PREVENT CHILD ABUSE AMERICA | CHICAGO, IL | $60,000 | 2025 | GENERAL SUPPORT |
| CAPITAL RESEARCH CENTER | WASHINGTON, DC | $60,000 | 2025 | GENERAL SUPPORT |
| MAYO CLINIC | ROCHESTER, MN | $60,000 | 2025 | GENERAL SUPPORT |
| CAREERS IN CONSTRUCTION COLORADO | COLORADO SPRINGS, CO | $60,000 | 2025 | GENERAL SUPPORT |
| OAKLAND REACH | OAKLAND, CA | $50,100 | 2025 | GENERAL SUPPORT |
| STOMP OUT BULLYING CORP | NEW YORK, NY | $50,000 | 2025 | GENERAL SUPPORT |
| THE BHUTAN FOUNDATION | WASHINGTON, DC | $50,000 | 2025 | WANGDUECHHOELING PALACE AND CULTURAL CENTER |
| AQUIDNECK LAND TRUST | MIDDLETOWN, RI | $50,000 | 2025 | GENERAL SUPPORT |
| FAMILIES IN ACTION FOR QUALITY EDUCATION | OAKLAND, CA | $50,000 | 2025 | GENERAL SUPPORT |
| CAPTAINS FOR CLEAN WATER INC | FORT MYERS, FL | $50,000 | 2025 | GENERAL SUPPORT |
| NATURE CONSERVANCY | ARLINGTON, VA | $50,000 | 2025 | THE HUMBOLDT CURRENT EMPOWERING SUSTAINABLE FISHERIES |
HUMANITY IN ACTION INC
$250,000GENERAL SUPPORT
SOCIETY FOR THE PRESERVATION OF THE GREAT AMERICAN SONGBOOK INC
$250,000GENERAL SUPPORT
PRESIDENT AND FELLOWS OF HARVARD COLLEGE
$249,000GENERAL SUPPORT
NATIVE VOICES RISING
UNIVERSITY OF CALIFORNIA SAN FRANCISCO
$150,000GENERAL SUPPORT
NP2
$150,000GENERAL SUPPORT
WEIL CORNELL MEDICINE
$140,000GENERAL SUPPORT
CATHOLIC HEALTH INITIATIVES COLORADO FOUNDATION
$120,000FLIGHT FOR LIFE COLORADO FY25
DAVIDSON COLLEGE
$113,100GENERAL SUPPORT
CITIZEN SCHOOLS INC
$100,000GENERAL SUPPORT
BUILDING A DIVERSE WORKFORCE PIPELINE AND A CAREER LAUNCH FOR THE AEROSPACE SECTOR
ESTATE OF GEORGE WATTS JR V LLOYD J AUSTIN III
COMMUNITY OF CONDON FOR THE PRESERVATION OF SWAN VALLEY
$100,000GENERAL SUPPORT
HELEN WOODWARD ANIMAL CENTER
$85,000GENERAL SUPPORT
EXETER HOSPITAL INC
$80,000GENERAL SUPPORT
OCONEE COUNTY HUMANE SOCIETY INC
$80,000GENERAL SUPPORT
INTERNATIONAL FREEDOM EDUCATIONAL FOUNDATION
$77,000GENERAL SUPPORT
INQUIRING SYSTEMS INC -BIOFIELD COLLECTIVE
$75,000GENERAL SUPPORT
TEACHING WELL INC
$73,000GENERAL SUPPORT
THE PRAXIS GROUP
$65,000GENERAL SUPPORT
MAYO CLINIC
$60,000GENERAL SUPPORT
STOMP OUT BULLYING CORP
$50,000GENERAL SUPPORT
THE BHUTAN FOUNDATION
$50,000WANGDUECHHOELING PALACE AND CULTURAL CENTER