O'neill Family Charitable Trust
Invitation OnlyNew York, New York · EIN 45-6363482 · Private foundation
Grants paid (2024)$8.5M
Organizations funded149
Typical grant$20,000
Total assets$177.6M
Half of its grants to organizations were between $10,000 and $50,000.
From the return
How to apply
On its return for tax year 2024 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
62% of grants went outside New York.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Grand Teton National Park | Moose, WY | General support | $500,000 |
| Winrock International | Little Rock, AR | General support | $400,000 |
| Colonial Williamsburg Income Transfer Account | Williamsburg, VA | General support | $350,000 |
| Hampshire College Trustees | Amherst, MA | General support | $350,000 |
| Asian Cultural Council | New York, NY | General support | $300,000 |
| International House | New York, NY | General support | $300,000 |
| Colonial Williamsburg Income Transfer Account | Williamsburg, VA | General support | $275,000 |
| Wnet Depository | New York, NY | General support | $265,000 |
| Memorial Sloan-Kettering Cancer Center | New York, NY | General support | $260,000 |
| St Mark's School of | Dallas, TX | General support | $255,000 |
| New York-Presbyterian Fund Inc | New York, NY | General support | $250,000 |
| Rockefeller University | New York, NY | General support | $230,000 |
| Rockefeller Brothers Fund | New York, NY | General support | $219,000 |
| St Dominic's Church Endowment | Oyster Bay, NY | General support | $215,000 |
| Metropolitan Museum of Art | New York, NY | General support | $210,000 |
| Teachers College | New York, NY | General support | $165,000 |
| Community Foundation of Oyster | Oyster Bay, NY | General support | $155,000 |
| Asian Cultural Council | New York, NY | General support | $150,000 |
| Family and Children's Association | Mineaola, NY | General support | $135,000 |
| Greenacre Foundation | New York, NY | General support | $130,000 |
| President and Fellows of Harvard College | Cambridge, MA | General support | $130,000 |
| Math Corps | Brimingham, MI | General support | $125,000 |
| Youth and Family Counseling Agency of Oyster Bay-East Norwich Inc | Oyster Bay, NY | General support | $125,000 |
| International House | New York, NY | General support | $105,000 |
| Buffalo Bill Memorial | Cody, WY | General support | $100,000 |
| Conservation Council of America | Washington, DC | General support | $100,000 |
| East Woods School | Oyster Bay, NY | General support | $100,000 |
| Historic Colony House | Lake Wales, FL | General support | $100,000 |
| Mclean Hospital | Belmont, MA | General support | $100,000 |
| Warner University | Lake Wales, FL | General support | $100,000 |
| Holy Spirit Catholic Church | Lake Wales, FL | General support | $90,000 |
| Conservation Council of America | Washington, DC | General support | $70,000 |
| Doctors Without Borders USA Inc | New York, NY | General support | $50,000 |
| Friends of Acadia | Bar Harbor, ME | General support | $50,000 |
| Friends of Rockefeller State | Sleepy Hallow, NY | General support | $50,000 |
| Island Institute | Rockland, ME | General support | $50,000 |
| Land & Garden Preserve | Seal Harbor, ME | General support | $50,000 |
| Lighthouse Guild International | New York, NY | General support | $50,000 |
| Municipal Art Society of New | New York, NY | General support | $50,000 |
| Our Lady of Sorrows | Linwood, NJ | General support | $50,000 |
| Our Lady of Sorrows Parish | Linwood, NJ | General support | $50,000 |
| Winter Haven Hospital Foundation Inc | Winter Haven, FL | General support | $40,000 |
| Holy Spirit Catholic Church | Lake Wales, FL | General support | $30,000 |
| Myriad USA | New York, NY | General support | $30,000 |
| New York Historical Society | New York, NY | General support | $30,000 |
| Safe Place and Rape Crisis Center | Sarasota, FL | General support | $30,000 |
| 1000 Friends of Florida | Tallahassee, FL | General support | $25,000 |
| American History Unbound | Ringwood, NJ | General support | $25,000 |
| American History Unbound | Ringwood, NJ | General support | $25,000 |
| Ballet Theatre Foundation Inc | New York, NY | General support | $25,000 |
| Beyond Basics | Southfield, MI | General support | $25,000 |
| Dana Hall School | Wellesley, MA | General support | $25,000 |
| Episcopal School in the City of New York | New York, NY | General support | $25,000 |
| Feeding Westchester | Elmsford, NY | General support | $25,000 |
| Food Bank of the Rockies | Denver, CO | General support | $25,000 |
| Green Chimneys Children's Services Inc | Brewster, NY | General support | $25,000 |
| Kid's Club of Tarrytown & Sleepy Hollow Inc | Tarrytown, NY | General support | $25,000 |
| New Beginnings of Westchester Inc | Ossining, NY | General support | $25,000 |
| New York Presbyterian Hospital | New York, NY | General support | $25,000 |
| Palm Beach Day Academy | Palm Beach, FL | General support | $25,000 |
Showing the 60 largest of 149 grants to organizations.
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $8,460,000 | 149 |
| 2023 | $5,343,000 | 82 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 12, 2025 - IRS e-file batch, object ID 202503169349102670
- IRS Tax Exempt Organization Search for EIN 45-6363482
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.