Data / Nonprofits / New York / Locust Valley / Philanthropy, voluntarism and grantmaking foundations
Philanthropy, voluntarism and grantmaking foundations nonprofits in Locust Valley, NY: 11 registered with the IRS
11 philanthropy, voluntarism and grantmaking foundations nonprofits are registered with the IRS in Locust Valley, NY, 11 of them 501(c)(3) charities.
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Alexander M Lewyt and Elisabeth Lewyt Wholly Charitable Trust | 501(c)(3) | 2015 | $89.8 million | 2024-12 | |
| Farooq Family Foundation Inc | 501(c)(3) | 2022 | $510,069 | 2024-12 | |
| Frank and Janet Dellafera Family Foundation Trust | 501(c)(3) | 2013 | $2.9 million | 2025-12 | |
| Gerald P & Carol D Halpern Foundation Trust | 501(c)(3) | 2003 | $273,845 | 2025-06 | |
| Harry F Mariani Family Foundation | 501(c)(3) | 2020 | $5.8 million | 2025-12 | |
| James M Large Jr Family Foundation | 501(c)(3) | 1997 | $3,479 | 2025-12 | |
| John and Joan Daddario Foundation Inc | 501(c)(3) | 1998 | $1.9 million | 2025-05 | |
| Michael and Ruth Slade Foundation | 501(c)(3) | 1999 | $216,622 | 2024-12 | |
| Pierre and Paula Gonthier Family Foundation | 501(c)(3) | 2015 | $2.4 million | 2025-12 | |
| Sharma Family Foundation Inc | 501(c)(3) | 2023 | $382,722 | 2024-12 | |
| Zhu & Liu Family Foundation Inc | 501(c)(3) | 2023 | $181,781 | 2025-12 |
Other causes in Locust Valley, NY
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Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.