Data / Nonprofits / California / Atherton / Philanthropy, voluntarism and grantmaking foundations
Philanthropy, voluntarism and grantmaking foundations nonprofits in Atherton, CA: 26 registered with the IRS
26 philanthropy, voluntarism and grantmaking foundations nonprofits are registered with the IRS in Atherton, CA, 26 of them 501(c)(3) charities; the 2 that report revenue took in $259,370. The largest by revenue: Ella M Rohlffs Fon ($253,814), Say Hey Foundation Incorporated ($5,556).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Ella M Rohlffs Fon | 501(c)(3) | 1974 | $253,814 | $5.6 million | 2025-12 |
| Say Hey Foundation Incorporated | 501(c)(3) | 2000 | $5,556 | $862,160 | 2023-12 |
| Aequus Foundation | 501(c)(3) | 2022 | $938,306 | 2025-08 | |
| Chiuchiarelli Family Foundation Inc | 501(c)(3) | 2001 | $83,067 | 2024-12 | |
| Chu Family Foundation Inc | 501(c)(3) | 2004 | $58,149 | 2024-12 | |
| David & Heidi Welch Foundation | 501(c)(3) | 1999 | $9,015 | 2025-12 | |
| Fountain of Dreams Foundation | 501(c)(3) | 2012 | $673,370 | 2025-10 | |
| Hoag Family Foundation | 501(c)(3) | 2001 | $37 million | 2024-12 | |
| Huang Pacific Foundation | 501(c)(3) | 2014 | $9.8 million | 2024-12 | |
| Hui Foundation | 501(c)(3) | 2024 | $13,489 | 2024-12 | |
| Hutton Family Foundation | 501(c)(3) | 2016 | $22.7 million | 2025-12 | |
| John and Elizabeth Kerrigan Charitable Foundation | 501(c)(3) | 2000 | $2.9 million | 2024-12 | |
| John and Kathleen Sweazey Foundation | 501(c)(3) | 2002 | $3 million | 2025-12 | |
| Kitchen Table Foundation | 501(c)(3) | 1997 | $366,542 | 2024-12 | |
| Luo Hui Foundation | 501(c)(3) | 2003 | $4 million | 2025-09 | |
| Making Their Mark Foundation Charitable Trust | 501(c)(3) | 2022 | $923,096 | 2024-12 | |
| Mentor Park Inc | 501(c)(3) | 2005 | $1 | 2024-12 | |
| Nachtsheim Family Foundation | 501(c)(3) | 2003 | $484,275 | 2025-11 | |
| Shailesh and Kalpa Mehta Charitible Foundation | 501(c)(3) | 1999 | $1.2 million | 2025-12 | |
| Sox Tree Foundation | 501(c)(3) | 2022 | $1.7 million | 2025-12 | |
| Stephen and Margaret Gill Family Foundation | 501(c)(3) | 1999 | $4.7 million | 2024-12 | |
| The Arnold & Barbara Silverman Family Foundation | 501(c)(3) | 1999 | $2.3 million | 2025-11 | |
| The Touma Family Foundation | 501(c)(3) | 2001 | $135,642 | 2025-12 | |
| The@palm Tree Foundation | 501(c)(3) | 2002 | $4 million | 2025-12 | |
| Worthing Family Foundation | 501(c)(3) | 2002 | $342,229 | 2024-12 | |
| Zeng Foundation | 501(c)(3) | 2016 | $2.7 million | 2025-04 |
Other causes in Atherton, CA
- Education 12
- Recreation and sports 9
- Arts, culture and humanities 8
- Human services 4
- Youth development 4
- Public safety, disaster preparedness and relief 3
- International, foreign affairs and national security 3
Every nonprofit in Atherton, CA · Philanthropy, voluntarism and grantmaking foundations nonprofits across the state · Nonprofits in every city of the state
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.