Data / Nonprofits / California / Larkspur
Nonprofits in Larkspur, CA: 83 registered with the IRS
83 nonprofits are registered with the IRS in Larkspur, CA, 74 of them 501(c)(3) charities; the 41 that report revenue took in $143.2 million. The largest by revenue: By the Bay Health ($79.4 million), Global Coalition for Adaptive Research Inc ($32.4 million), Marin Primary & Middle School ($13.6 million). Most common causes: education (14), philanthropy, voluntarism and grantmaking foundations (14), arts, culture and humanities (6).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| By the Bay Health | Human services | 501(c)(3) | 1983 | $79.4 million | $132.6 million | 2025-06 |
| Global Coalition for Adaptive Research Inc | Medical research | 501(c)(3) | 2018 | $32.4 million | $78.1 million | 2025-12 |
| Marin Primary & Middle School | Education | 501(c)(3) | 1976 | $13.6 million | $36.4 million | 2025-06 |
| Lark Theater | Arts, culture and humanities | 501(c)(3) | 2004 | $2.6 million | $5.9 million | 2025-12 |
| Connecting for Better Health | Health care | 501(c)(3) | 2024 | $2.2 million | $44,434 | 2025-12 |
| Friends of the Fromm Institute for Life-Long Learning | Education | 501(c)(3) | 1977 | $2.1 million | $8 million | 2025-06 |
| Corte Madera Larkspur Foundation | Education | 501(c)(3) | 1987 | $1.5 million | $855,641 | 2025-06 |
| Redwood High School Foundation | Education | 501(c)(3) | 1997 | $1.3 million | $624,506 | 2025-06 |
| Tam Cycling | Recreation and sports | 501(c)(3) | 2009 | $1.3 million | $643,886 | 2024-12 |
| The Commons Foundation | Education | 501(c)(3) | 2016 | $1.1 million | $6.1 million | 2024-12 |
| Pandemic Response Organization Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2022 | $1 million | $899,654 | 2024-12 |
| Marin Brain Injury Network | 501(c)(3) | 1987 | $726,974 | $843,904 | 2025-07 | |
| Refugia Marin | Human services | 501(c)(3) | 2023 | $657,675 | $306,087 | 2025-12 |
| American Federation of Teachers | 501(c)(5) | 1970 | $339,548 | $111,628 | 2025-12 | |
| Honore Farm and Mill | Food, agriculture and nutrition | 501(c)(3) | 2018 | $318,960 | $346,891 | 2025-12 |
| Tidalwaves Swim Society | 501(c)(3) | 1987 | $314,336 | $295,139 | 2025-12 | |
| Youth Cooking Services | Food, agriculture and nutrition | 501(c)(3) | 2021 | $287,146 | $206,911 | 2025-06 |
| Childrens Cottage | Education | 501(c)(3) | 2013 | $212,633 | $151,872 | 2025-06 |
| Riding Wild | Human services | 501(c)(3) | 2023 | $186,250 | $39,585 | 2024-12 |
| American Legion | 501(c)(19) | 1934 | $153,802 | $1.2 million | 2024-12 | |
| Friends of Corte Madera Creek Watershed | Environment | 501(c)(3) | 1996 | $147,128 | $207,928 | 2025-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $134,635 | $84,694 | 2025-06 | |
| Redwood Pigskin Club | 501(c)(3) | 1985 | $121,778 | $58,756 | 2025-12 | |
| Bay Area Cabaret | Arts, culture and humanities | 501(c)(3) | 2006 | $119,463 | $232,672 | 2024-06 |
| Marin County Athletic League | 501(c)(3) | 1968 | $106,874 | $97,145 | 2025-06 | |
| Dogs On Death Row | Animal-related | 501(c)(3) | 2006 | $96,876 | $144,106 | 2025-04 |
| Friends of the Larkspur Library | Education | 501(c)(3) | 2010 | $84,555 | $69,340 | 2025-12 |
| Larkspur Chamber of Commerce | Community improvement and capacity building | 501(c)(6) | 2018 | $80,236 | $93,411 | 2025-12 |
| Central Marin Police Officers Association Inc | 501(c)(5) | 1981 | $77,955 | $123,400 | 2024-12 | |
| Redwood High School Hoops Club | Education | 501(c)(3) | 2012 | $75,479 | $39,724 | 2026-06 |
| Larkspur Community Foundation | Community improvement and capacity building | 501(c)(3) | 2014 | $55,070 | $125,169 | 2025-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $51,213 | $100,926 | 2025-06 | |
| Golden Gate Learning Foundation | Education | 501(c)(3) | 2018 | $46,142 | $14,510 | 2024-12 |
| Larkspur Library Endowment Fund and Foundation | Education | 501(c)(3) | 1978 | $41,031 | $727,573 | 2024-12 |
| Tam District Alternative Schools Foundation | Education | 501(c)(3) | 2016 | $40,518 | $60,784 | 2025-12 |
| Free & Accepted Masons of California | 501(c)(10) | 1940 | $38,338 | $896,075 | 2024-12 | |
| Marin Musical Theatre Company | Arts, culture and humanities | 501(c)(3) | 2015 | $36,460 | $136,079 | 2025-12 |
| Ypo Inc | 501(c)(6) | 1989 | $30,814 | $300,157 | 2025-06 | |
| Canine Wounded Heroes | Animal-related | 501(c)(3) | 2012 | $25,415 | $53,599 | 2025-04 |
| Marin Interfaith Task Force On the Americas | Arts, culture and humanities | 501(c)(3) | 1994 | $10,217 | $12,732 | 2024-12 |
| Larkspur Rec Ing Crew | Recreation and sports | 501(c)(3) | 2014 | $9,371 | $19,078 | 2024-12 |
| Aauw Marin Scholarship Fund | Education | 501(c)(3) | 2003 | $0 | $0 | 2026-06 |
| Acacia Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1996 | $47.8 million | 2026-05 | |
| Alfred & Hanna Fromm Fund | 501(c)(3) | 1964 | $19.5 million | 2024-12 | ||
| Alfred and Hanna Fromm Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2018 | $24.5 million | 2024-12 | |
| Association Des Conseillers Du Comm Erce Exterieur de La France Ouest- | Community improvement and capacity building | 501(c)(6) | 2026 | |||
| Be the Influence | Mental health and crisis intervention | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| California Youth Football Alliance | Youth development | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Corte Madera Larkspur Mothers Club Inc | Public and societal benefit | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| Councilone Advisors | Community improvement and capacity building | 501(c)(6) | 2014 | $0 | $0 | 2025-12 |
| Foundation in the Memory of Sister Rose Thering Inc | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Gracesigns | Diseases, disorders and medical disciplines | 501(c)(3) | 2015 | $0 | $0 | 2023-12 |
| Griffin-Phoenix Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $6.3 million | 2024-12 | |
| Harmony Wellness Foundation | Mental health and crisis intervention | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Humankind Humankindness | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Icare Travel Foundation | International, foreign affairs and national security | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| John Brockway Huntington Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1996 | $6.1 million | 2025-12 | |
| Kingsdale-Scirica Foundation Trust | 501(c)(3) | 1992 | $575,682 | 2025-12 | ||
| Larkspur Association of Volunteer Firemen | Public safety, disaster preparedness and relief | 501(c)(3) | 1971 | $0 | $0 | 2023-12 |
| Larkspur Miscellaneous Employees Association | Employment | 501(c)(5) | 2025 | $0 | $0 | 2025-12 |
| Madrone Canyon NRG | Public safety, disaster preparedness and relief | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Maier Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $772,625 | 2025-12 | |
| May and Stanley Smith Charitable Trust | 501(c)(3) | 1989 | $456.1 million | 2024-12 | ||
| New Mission Community Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Newton and Rochelle Beckercharitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $157.4 million | 2024-12 | |
| Nightingale Refugee Relief Corp | Human services | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Patty and Jack Wright Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $3.5 million | 2025-09 | |
| Price Automobile Foundation | Arts, culture and humanities | 501(c)(3) | 2024 | $6.1 million | 2024-12 | |
| Price Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $118,058 | 2025-06 | |
| Redwood High Music Boosters | Youth development | 501(c)(3) | 2011 | $0 | $0 | 2025-06 |
| Redwood High School Benchwarmers | Education | 501(c)(3) | 2004 | $0 | $0 | 2026-06 |
| Remillard Cottage Board | 501(c)(3) | 1983 | $0 | $0 | 2026-06 | |
| Saint Patrick Church | 501(c)(3) | 1946 | ||||
| Schauble Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $8.4 million | 2024-12 | |
| Silva Watson Moonwalk Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $106,857 | 2025-09 | |
| Soulfully Foundation | Mental health and crisis intervention | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Strata Habitat Foundation | Environment | 501(c)(3) | 2006 | $2.5 million | 2024-12 | |
| Sufi Order | 501(c)(3) | 1993 | ||||
| Team Pride Inc | Youth development | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| The Seth and Angie Taube Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $1.5 million | 2024-12 | |
| The St Barths Music Festival | Arts, culture and humanities | 501(c)(3) | 2018 | $0 | $0 | 2024-04 |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Todd and Doris Ahlsten Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2018 | $73.9 million | 2024-12 |
By cause in Larkspur, CA
- Education 14
- Philanthropy, voluntarism and grantmaking foundations 14
- Arts, culture and humanities 6
- Community improvement and capacity building 4
- Human services 4
- Youth development 3
- Mental health and crisis intervention 3
- Public safety, disaster preparedness and relief 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.