Data / Nonprofits / California / Atherton
Nonprofits in Atherton, CA: 92 registered with the IRS
92 nonprofits are registered with the IRS in Atherton, CA, 86 of them 501(c)(3) charities; the 28 that report revenue took in $183.1 million. The largest by revenue: Menlo School ($97.9 million), Menlo College ($60.3 million), Menlo Circus Club ($16.3 million). Most common causes: philanthropy, voluntarism and grantmaking foundations (26), education (12), recreation and sports (9).
SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.
Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Menlo School | 501(c)(3) | 1994 | $97.9 million | $355.8 million | 2025-06 | |
| Menlo College | 501(c)(3) | 1994 | $60.3 million | $61.3 million | 2025-06 | |
| Menlo Circus Club | 501(c)(7) | 1942 | $16.3 million | $26.2 million | 2025-09 | |
| Menlo Park-Atherton Education Foundation | Education | 501(c)(3) | 1983 | $5.3 million | $13.8 million | 2025-06 |
| Academy College Prep | Education | 501(c)(3) | 2022 | $266,897 | $8,902 | 2025-12 |
| Ella M Rohlffs Fon | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1974 | $253,814 | $5.6 million | 2025-12 |
| Unidos Y Adelante | Education | 501(c)(3) | 2003 | $251,126 | $203,258 | 2025-06 |
| Rich May Foundation | Youth development | 501(c)(3) | 2008 | $231,191 | $173,936 | 2025-12 |
| Menlo Atherton High School Football Association | Youth development | 501(c)(3) | 2017 | $231,053 | $135,204 | 2025-06 |
| Laurel School Parent Teacher Organization | Education | 501(c)(3) | 2004 | $221,479 | $134,721 | 2025-07 |
| Italian Scientists and Scholars Innorth America Foundation | Medical research | 501(c)(3) | 2007 | $216,006 | $288,080 | 2025-12 |
| Atherton Aquatics Foundation | Recreation and sports | 501(c)(3) | 2013 | $196,070 | $16,744 | 2025-09 |
| Charwick Study Center Inc | Human services | 501(c)(3) | 2012 | $190,474 | $499,638 | 2025-12 |
| Lalafofofo Inc | International, foreign affairs and national security | 501(c)(3) | 2015 | $183,003 | $97,782 | 2024-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $168,384 | $99,093 | 2025-07 | |
| Encinal School Parent Teacher Organization | Education | 501(c)(3) | 2004 | $166,675 | $26,833 | 2024-07 |
| Blue Nevus Melanoma Foundation | Diseases, disorders and medical disciplines | 501(c)(3) | 2024 | $122,589 | $82,990 | 2025-12 |
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $111,112 | $28,134 | 2025-06 |
| Leafy Temple Inc | Recreation and sports | 501(c)(7) | 2024 | $100,000 | $1 | 2024-12 |
| Atherton Police Activities League | 501(c)(3) | 1987 | $97,943 | $164,803 | 2024-12 | |
| Us Resiliency Council | Public safety, disaster preparedness and relief | 501(c)(3) | 2014 | $66,690 | $348,060 | 2023-12 |
| Menlo School and Menlo College | 501(c)(3) | 1949 | $56,371 | $284,430 | 2025-06 | |
| Goldenhearts Educational Services | International, foreign affairs and national security | 501(c)(3) | 2019 | $25,402 | $92,555 | 2025-12 |
| Indo-Universal Collaboration for Engineering Education | Arts, culture and humanities | 501(c)(3) | 2019 | $23,954 | $38,606 | 2025-12 |
| Ital Foundation | Education | 501(c)(3) | 2009 | $22,226 | $117,520 | 2025-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1967 | $16,769 | $39,261 | 2025-07 | |
| Say Hey Foundation Incorporated | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $5,556 | $862,160 | 2023-12 |
| Curieus | Youth development | 501(c)(3) | 2024 | $5,174 | $1,617 | 2024-12 |
| Abbey Foundation for the Arts | Arts, culture and humanities | 501(c)(3) | 1996 | $2.6 million | 2026-01 | |
| Aequus Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $938,306 | 2025-08 | |
| Alexandra Chiles Foundation | Human services | 501(c)(3) | 2003 | $0 | $0 | 2025-06 |
| Alley-Oop Kids | Recreation and sports | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| American Society for the Advancement of Chinese Art | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Atherton Arts Foundation | Arts, culture and humanities | 501(c)(3) | 2026 | $0 | $0 | 2026-06 |
| Atherton Disaster and Preparedness Team | Public safety, disaster preparedness and relief | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Atherton Heritage Association | Arts, culture and humanities | 501(c)(3) | 1993 | $0 | $0 | 2025-09 |
| Atherton Police Officers Foundation | Public safety, disaster preparedness and relief | 501(c)(3) | 2025 | |||
| Bartz Marr Family Foundation | Human services | 501(c)(3) | 2014 | $19 million | 2025-12 | |
| Bay Area Modern Quilt Guild | Recreation and sports | 501(c)(7) | 2015 | $0 | $0 | 2025-12 |
| Bay Area Sonics | Recreation and sports | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| California Province Society of the Sacred Heart | 501(c)(3) | 1946 | ||||
| Cardiac Kids | Health care | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| China Educational Center | International, foreign affairs and national security | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Chiuchiarelli Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $83,067 | 2024-12 | |
| Chu Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $58,149 | 2024-12 | |
| David & Heidi Welch Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $9,015 | 2025-12 | |
| Fountain of Dreams Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $673,370 | 2025-10 | |
| Friends of the Atherton Community Library | Human services | 501(c)(3) | 1969 | $0 | $0 | 2025-12 |
| Goel Foundation | 501(c)(3) | 1991 | $5.9 million | 2024-12 | ||
| Gold Rush Adventure Racing Inc | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Golden State Toy Train Operators Inc | Recreation and sports | 501(c)(7) | 2011 | $0 | $0 | 2025-12 |
| Harry W Anderson and Mary Margaret Anderson Charitable Foundation | 501(c)(3) | 1989 | $503,364 | 2024-12 | ||
| Hoag Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $37 million | 2024-12 | |
| Holbrook-Palmer Recreation Park Foundation | Recreation and sports | 501(c)(3) | 1965 | $0 | $0 | 2026-06 |
| Huang Pacific Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $9.8 million | 2024-12 | |
| Hui Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $13,489 | 2024-12 | |
| Hutton Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $22.7 million | 2025-12 | |
| Jerry Rice 127 Foundation | 501(c)(3) | 1994 | $160,054 | 2024-12 | ||
| John and Elizabeth Kerrigan Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $2.9 million | 2024-12 | |
| John and Kathleen Sweazey Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $3 million | 2025-12 | |
| Kitchen Table Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $366,542 | 2024-12 | |
| Luo Hui Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $4 million | 2025-09 | |
| Making Their Mark Foundation Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $923,096 | 2024-12 | |
| Menlo Park City School District Parent Teacher Organization Counci | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-07 |
| Menlo-Atherton Drama Boosters Inc | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Mentor Park Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $1 | 2024-12 | |
| Nachtsheim Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $484,275 | 2025-11 | |
| National Junior Basketball | 501(c)(3) | 1993 | $0 | $0 | 2025-07 | |
| Oneup Financial Education Inc | Youth development | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Peng & Zhou Foundation | Education | 501(c)(3) | 2023 | $82,294 | 2025-08 | |
| Peninsula Water Polo | Recreation and sports | 501(c)(3) | 2008 | $0 | $0 | 2025-08 |
| Project CPR | Education | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Psi Chi the National Honor Society in Psychology | 501(c)(3) | 1957 | $0 | $0 | 2025-06 | |
| Reliability-Org | Community improvement and capacity building | 501(c)(6) | 2024 | $0 | $0 | 2023-12 |
| Robert F Ford Charitable Foundation | 501(c)(3) | 1963 | $862,305 | 2024-12 | ||
| Sacred Heart Schools Atherton | 501(c)(3) | 1946 | 2025-06 | |||
| San Francisco Institute of Classical Music Performance | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Scalablevision Foundation | Arts, culture and humanities | 501(c)(3) | 2021 | $3.7 million | 2024-12 | |
| Shailesh and Kalpa Mehta Charitible Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $1.2 million | 2025-12 | |
| Silicon Valley Technology Foundation | Science and technology | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Sox Tree Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $1.7 million | 2025-12 | |
| Step of Love Inc | Public and societal benefit | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Stephen and Margaret Gill Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $4.7 million | 2024-12 | |
| Stroke of Hope | Health care | 501(c)(3) | 2025 | |||
| Tang and Zhang Family Foundation | Education | 501(c)(3) | 2023 | $18.2 million | 2024-12 | |
| The Arnold & Barbara Silverman Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $2.3 million | 2025-11 | |
| The Hu Art & Education Foundation | Education | 501(c)(3) | 2026 | |||
| The Touma Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $135,642 | 2025-12 | |
| The@palm Tree Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $4 million | 2025-12 | |
| Victoria Manor Homeowners | Community improvement and capacity building | 501(c)(4) | 2011 | $0 | $0 | 2025-12 |
| Worthing Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $342,229 | 2024-12 | |
| Zeng Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $2.7 million | 2025-04 |
By cause in Atherton, CA
- Philanthropy, voluntarism and grantmaking foundations 26
- 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
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.