Prospect Hill Foundation
ActiveMutual & Membership BenefitMakes PRIsFunds Individuals
NEW YORK, NYWebsite
About Prospect Hill Foundation
To advance the human experience while ensuring the well-being of the earth.
Focus Areas
Nuclear disarmamentNuclear nonproliferationYouthArts and cultureEnvironmental conservationSocial changeEducationGender equityReproductive health and justiceYouth justice
Who They Fund
students and school communities (including mental wellness funds and scholarships)youth cohorts from under-resourced areas (maritime adventure, youth movements)arts organizations, artists, museum departments
About Prospect Hill Foundation
Prospect Hill Foundation Inc. has made nuclear disarmament and nonproliferation a durable part of its grantmaking, alongside arts, youth, environment, reproductive health and justice, and social justice. Its recent grants show a funder willing to make both large, named commitments and smaller supporting grants, with awards ranging from five figures into the six-figure range. In nuclear policy, the foundation has repeatedly backed Arms Control Association and the Center for Arms Control and Non-proliferation, including grants of $75,000 and $55,000 over multiple years. It has also supported Outrider Foundation for journalism and media work tied to the field, signaling interest in public communication as well as advocacy. Beyond the nuclear portfolio, the foundation has funded arts and education institutions such as Yale University and Dana Hall School, and it has also supported environmental and social justice work through groups like Global Greengrants Fund and Groundswell Fund. The pattern suggests a broad, multi-issue grantmaker that funds both institutions and advocacy organizations, often with general operating or project support.
What Prospect Hill Foundation Funds
In nuclear disarmament and nonproliferation, the foundation has supported policy and advocacy groups with grants such as $75,000 to Arms Control Association for general support and $75,000 to Center for Arms Control and Non-proliferation for general support. It also backed Outrider Foundation with $75,000 for its journalism and media program, linking the issue area to public-facing reporting. In reproductive health and justice, the foundation awarded $100,000 to National Latina Institute for Reproductive Justice for general support and $100,000 to Unite for Reproductive & Gender Equity for general support. Its arts and education support includes $150,000 to Yale University for the new facility at the David Geffen School of Drama at Yale and $55,000 to Dana Hall School for a capital campaign. Environmental grantmaking includes $50,000 to Global Greengrants Fund for capital grant and organizational strengthening.
How Prospect Hill Foundation Gives
Typical grants cluster at modest-to-mid six figures: p25 is $400, the median is $2,000, and p75 is $15,000. Recent awards include repeated support to the same organizations across 2023, 2024, 2025, and 2026, indicating ongoing relationships rather than one-off funding. The foundation is a regular funder and also makes program-related investments. It does not accept unsolicited applications in the active programs listed. Grantmaking spans direct nonprofit support, general operating support, capital support, and program-specific awards.
Financial Snapshot
Annual Giving
$2.6M
Total Assets
$78.4M
Total Revenue
$6M
Total Expenses
$4.6M
Typical Grant Size
Most grants fall between $400 and $15K, with a median of $2K.
25th Percentile
$400
Median
$2K
75th Percentile
$15K
Geographic Reach
Regional36 states funded
Funding intensity
LowHigh
Headquarters
Funding intensity
LowHigh
Where Prospect Hill Foundation Funds
Top 4 recipient countries by grant volume for Prospect Hill Foundation.
| Rank | Country | Grants | Total | Share |
|---|---|---|---|---|
| 1 | United StatesDomestic | 1,286 | $11.6M | 99.6% |
| 2 | Puerto Rico |
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