Data / Nonprofits / California / Petaluma
Nonprofits in Petaluma, CA: 467 registered with the IRS
467 nonprofits are registered with the IRS in Petaluma, CA, 382 of them 501(c)(3) charities; the 194 that report revenue took in $374.2 million. The largest by revenue: Petaluma Health Center ($83.9 million), San Antonio Valley Ranch LLC ($65.4 million), United Cerebral Palsy of the North Bay Inc ($33.1 million). Most common causes: arts, culture and humanities (50), education (47), recreation and sports (41).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Petaluma Health Center | Health care | 501(c)(3) | 2000 | $83.9 million | $63.3 million | 2025-06 |
| San Antonio Valley Ranch LLC | Arts, culture and humanities | 501(c)(3) | 2019 | $65.4 million | $136.2 million | 2024-12 |
| United Cerebral Palsy of the North Bay Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1959 | $33.1 million | $73.2 million | 2025-06 |
| Point Reyes Bird Observatory | Animal-related | 501(c)(3) | 1965 | $31.7 million | $26.4 million | 2025-03 |
| Aliados Health Network | Health care | 501(c)(3) | 2009 | $20.6 million | $5.4 million | 2025-06 |
| Committee On the Shelterless | 501(c)(3) | 1994 | $14.7 million | $12.1 million | 2025-06 | |
| Aliados Health | Health care | 501(c)(3) | 1995 | $11.3 million | $8.8 million | 2025-06 |
| Petaluma River Park Foundation Inc | Recreation and sports | 501(c)(3) | 2019 | $11.2 million | $22.6 million | 2025-12 |
| Petaluma People Service Center | Human services | 501(c)(3) | 1975 | $7.1 million | $3 million | 2025-06 |
| Grantmakers Concerned With Immigrants and Refugees | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $6.8 million | $8.7 million | 2024-12 |
| Spring Hill Montessori | Education | 501(c)(3) | 1975 | $4.9 million | $9.8 million | 2026-06 |
| United Camps Conferences & Retreats | 501(c)(3) | 1970 | $4.3 million | $2.2 million | 2024-12 | |
| Headlands Foundation | Housing and shelter | 501(c)(3) | 1996 | $3.8 million | $2.5 million | 2023-12 |
| Chinese Christian Mission | Religion-related | 501(c)(3) | 1961 | $3.7 million | $5.5 million | 2024-12 |
| Live Oak Charter School | Education | 501(c)(3) | 2002 | $3.4 million | $1.1 million | 2025-06 |
| The Institute for Bird Populations | Animal-related | 501(c)(3) | 1994 | $3.1 million | $998,308 | 2024-12 |
| Village Network of Petaluma | Human services | 501(c)(3) | 2016 | $2.8 million | $3 million | 2025-06 |
| Daily Acts Organization | Environment | 501(c)(3) | 2006 | $2.8 million | $1.6 million | 2024-12 |
| Flywheel Fund for Career Choice | Education | 501(c)(3) | 2022 | $2.4 million | $3.9 million | 2024-12 |
| Rebuilding Together Petaluma Inc | Housing and shelter | 501(c)(3) | 1997 | $2.3 million | $571,627 | 2025-06 |
| River Montessori Charter School | Education | 501(c)(3) | 2015 | $2.2 million | $1.1 million | 2025-06 |
| Harvest Christian School | Education | 501(c)(3) | 2007 | $2.2 million | $904,726 | 2025-06 |
| Global Strategies | Medical research | 501(c)(3) | 1999 | $2 million | $2.9 million | 2025-08 |
| Petaluma Golf & Country Club A Corp | 501(c)(7) | 1943 | $1.9 million | $1.7 million | 2024-12 | |
| Senior Advocacy Services | Health care | 501(c)(3) | 1970 | $1.5 million | $1.5 million | 2025-06 |
| Life On Earth Art | Arts, culture and humanities | 501(c)(3) | 2022 | $1.5 million | $1.6 million | 2025-12 |
| Petaluma Educational FDN | Education | 501(c)(3) | 1982 | $1.5 million | $7.6 million | 2025-06 |
| Sonoma Equine Rescue Rehab & Adoption Inc | International, foreign affairs and national security | 501(c)(3) | 2009 | $1.5 million | $1.4 million | 2025-12 |
| Giant Steps Therapeutic Equestrian Center Inc | Health care | 501(c)(3) | 1998 | $1.4 million | $4 million | 2025-06 |
| The Guy Fieri Foundation | Education | 501(c)(3) | 2011 | $1.3 million | $3.1 million | 2025-12 |
| Cinnabar Arts Corporation | Arts, culture and humanities | 501(c)(3) | 1987 | $1.2 million | $1.3 million | 2025-06 |
| Sonoma Family Meal | Public safety, disaster preparedness and relief | 501(c)(3) | 2018 | $1.2 million | $725,967 | 2025-06 |
| Face the World Foundation | International, foreign affairs and national security | 501(c)(3) | 1994 | $1.2 million | $862,680 | 2024-12 |
| Petaluma Youth Soccer League | 501(c)(3) | 1977 | $1.1 million | $593,061 | 2024-12 | |
| On the Margins Inc | Civil rights, social action and advocacy | 501(c)(3) | 2023 | $1.1 million | $591,385 | 2025-12 |
| Carbon Cycle Institute | Science and technology | 501(c)(3) | 2015 | $1.1 million | $892,410 | 2024-05 |
| Petaluma Downtown Association | 501(c)(6) | 1995 | $1 million | $785,633 | 2025-12 | |
| Redwood Empire Chapter | 501(c)(6) | 1990 | $1 million | $1.3 million | 2025-12 | |
| Lilys Legacy Senior Dog Sanctuary | Animal-related | 501(c)(3) | 2009 | $967,518 | $2.9 million | 2025-12 |
| Investigative Studios Inc | Education | 501(c)(3) | 2016 | $915,072 | $191,393 | 2025-06 |
| Farallon Institute | Environment | 501(c)(3) | 2008 | $911,027 | $202,041 | 2025-12 |
| North Bay Youth Soccer League | Recreation and sports | 501(c)(3) | 2014 | $910,697 | $204,756 | 2025-12 |
| Polly Klaas Foundation | Crime and legal-related | 501(c)(3) | 1993 | $768,546 | $1.5 million | 2025-06 |
| Housing Land Trust of Sonoma County | Housing and shelter | 501(c)(3) | 2002 | $684,365 | $27.9 million | 2025-12 |
| Veriditas Inc | Religion-related | 501(c)(3) | 1996 | $671,848 | $175,119 | 2025-12 |
| Petaluma Lodging Association | Community improvement and capacity building | 501(c)(6) | 2022 | $671,235 | $85,924 | 2025-12 |
| Global Partners for Development | International, foreign affairs and national security | 501(c)(3) | 1979 | $648,435 | $354,855 | 2025-03 |
| Cafe Puente | Human services | 501(c)(3) | 2019 | $590,272 | $357,607 | 2025-12 |
| North Bay Leadership Council | 501(c)(6) | 1993 | $589,900 | $349,432 | 2025-12 | |
| Rancho Obi-Wan Inc | Arts, culture and humanities | 501(c)(3) | 2012 | $539,616 | $343,829 | 2025-12 |
| Healthy Petaluma Foundation | Health care | 501(c)(3) | 2022 | $532,600 | $55,514 | 2025-06 |
| Samye | Religion-related | 501(c)(3) | 2008 | $529,783 | $181,275 | 2025-12 |
| Friends of the Petaluma River | Environment | 501(c)(3) | 1998 | $528,052 | $36,131 | 2025-12 |
| Golden Gate Basset Rescue Inc | Animal-related | 501(c)(3) | 2005 | $525,294 | $1.2 million | 2025-12 |
| Reuse Alliance Inc | Education | 501(c)(3) | 2014 | $497,563 | $117,335 | 2025-12 |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $483,546 | $486,429 | 2026-03 | |
| American Federation of Teachers | 501(c)(5) | 1970 | $432,417 | $143,946 | 2024-10 | |
| Petaluma Phoenix Center Inc | Recreation and sports | 501(c)(3) | 2003 | $425,390 | $1.1 million | 2024-12 |
| Mi Oaxaca | Arts, culture and humanities | 501(c)(3) | 2025 | $340,525 | $154,161 | 2025-12 |
| Petaluma High School Athletic Boosters Club | Education | 501(c)(3) | 1986 | $311,794 | $202,768 | 2025-06 |
| Petaluma Chamber of Commerce Inc | 501(c)(6) | 1942 | $303,733 | $166,151 | 2025-06 | |
| North Bay Rowing Club | 501(c)(3) | 1987 | $280,745 | $119,220 | 2025-04 | |
| Mothers Care Support | Mental health and crisis intervention | 501(c)(3) | 2025 | $278,370 | $55,427 | 2025-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1968 | $269,318 | $399,331 | 2025-06 | |
| Petaluma Community Access Inc | Arts, culture and humanities | 501(c)(3) | 1997 | $267,528 | $85,889 | 2025-06 |
| Lexicon of Sustainability Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $258,554 | $36,329 | 2024-12 |
| Aqus Community Foundation | Community improvement and capacity building | 501(c)(3) | 2015 | $257,955 | $116,815 | 2025-12 |
| Petaluma Pet Pals | Animal-related | 501(c)(3) | 2023 | $256,724 | $41,909 | 2025-06 |
| United Anglers of Casa Grande Inc | Youth development | 501(c)(3) | 2009 | $256,067 | $127,628 | 2025-06 |
| Waugh Invests in Student Excellence Education Foundation Inc | Education | 501(c)(3) | 2002 | $251,442 | $569,010 | 2025-06 |
| Redwood Empire Ibew-Neca Labor MGT Cooperation Committee Trust | 501(c)(5) | 1994 | $250,796 | $287,945 | 2025-08 | |
| Foundation for Petaluma Public Waldorf | Education | 501(c)(3) | 2025 | $246,222 | $661,498 | 2025-06 |
| W H Pepper Preschool Inc | Education | 501(c)(3) | 2024 | $244,368 | $68,816 | 2025-05 |
| North Bay Cna | Education | 501(c)(3) | 2024 | $241,000 | $78,230 | 2025-12 |
| Global Healing | International, foreign affairs and national security | 501(c)(3) | 1995 | $239,738 | $274,064 | 2024-12 |
| Performing Artists Coalition for Theater Inc | Arts, culture and humanities | 501(c)(3) | 2011 | $229,992 | $155,080 | 2025-06 |
| Rotary International | 501(c)(4) | 1958 | $219,995 | $144,119 | 2025-06 | |
| California Tooling and Machining Apprenticeship Association | Community improvement and capacity building | 501(c)(6) | 2009 | $211,416 | $82,911 | 2025-06 |
| Peace Officers Association of Petaluma | Employment | 501(c)(5) | 2004 | $203,722 | $284,508 | 2024-12 |
| Cotati Accordion Festival | Arts, culture and humanities | 501(c)(3) | 1995 | $202,287 | $52,701 | 2024-12 |
| Petaluma Blacks for Community Development | Arts, culture and humanities | 501(c)(3) | 2005 | $201,272 | $211,534 | 2025-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1967 | $199,632 | $187,198 | 2025-06 | |
| Casa Grande Booster Club | 501(c)(3) | 1975 | $197,116 | $211,763 | 2024-12 | |
| Academy of California Elite Soccer Inc | Recreation and sports | 501(c)(3) | 2012 | $193,111 | $291,870 | 2024-12 |
| Independent Order of Odd Fellows | 501(c)(8) | 1972 | $189,940 | $882,385 | 2024-12 | |
| Alliance for Public Waldorfeducation | Education | 501(c)(3) | 2013 | $181,757 | $354,024 | 2025-06 |
| Petaluma Wine Jazz & Blues Festival Inc | Arts, culture and humanities | 501(c)(3) | 2009 | $178,068 | $64,069 | 2025-12 |
| Petaluma Small Craft Center | Recreation and sports | 501(c)(3) | 2011 | $176,832 | $106,746 | 2025-09 |
| Little League Baseball Inc | 501(c)(3) | 1967 | $176,648 | $0 | 2025-09 | |
| Petaluma Arts Council | Arts, culture and humanities | 501(c)(3) | 2002 | $173,015 | $216,259 | 2025-06 |
| Driver Rehabilitation Institute | Health care | 501(c)(3) | 2019 | $168,640 | $13,559 | 2025-12 |
| Petaluma Museum Association | Arts, culture and humanities | 501(c)(3) | 1984 | $167,542 | $60,874 | 2025-06 |
| Petaluma Wildlife and Natural Science Museum | Arts, culture and humanities | 501(c)(3) | 1995 | $161,539 | $437,053 | 2025-12 |
| Petaluma Womans Club | 501(c)(4) | 1972 | $160,013 | $266,875 | 2025-04 | |
| Sonoma County Pigeon Racing Club Inc | Recreation and sports | 501(c)(7) | 1998 | $158,646 | $685 | 2025-05 |
| Mustang Acres Inc | Food, agriculture and nutrition | 501(c)(3) | 2022 | $157,602 | $266,083 | 2024-12 |
| Little League Baseball Inc | 501(c)(3) | 1967 | $157,155 | $109,044 | 2024-09 | |
| Sonoma County Alano Club | Mental health and crisis intervention | 501(c)(3) | 2002 | $156,417 | $73,746 | 2025-12 |
| American Postal Workers Union 1291 Redwood Empire Area Local Apwu | Employment | 501(c)(5) | 2025 | $152,616 | $62,742 | 2025-12 |
| Petaluma Staff Nurse Partnership | Employment | 501(c)(5) | 2019 | $151,616 | $114,954 | 2025-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $146,568 | $121,425 | 2025-06 | |
| Womensave | Human services | 501(c)(3) | 2021 | $143,334 | $219,671 | 2025-12 |
| Catalyst - A Wilson School Foundation | Education | 501(c)(3) | 2023 | $142,954 | $206,267 | 2025-12 |
| California Northern Coastal Area of Alcoholics Anonymous | 501(c)(3) | 1994 | $142,903 | $34,905 | 2025-12 | |
| International Association of Fire Fighters | 501(c)(5) | 1966 | $142,421 | $383,924 | 2024-12 | |
| Petaluma Holy Ghost Society | Religion-related | 501(c)(3) | 2003 | $142,411 | $626,746 | 2025-09 |
| Petaluma High School Agriculture Department Boosters Inc | Education | 501(c)(3) | 2013 | $139,830 | $242,886 | 2025-06 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $139,144 | $137,434 | 2025-06 | |
| Hertwig Haven | Animal-related | 501(c)(3) | 2017 | $138,154 | $881,323 | 2025-12 |
| Petaluma Panthers Youth Football & Cheer | Recreation and sports | 501(c)(3) | 2017 | $135,232 | $52,032 | 2024-12 |
| Chancery Club | Recreation and sports | 501(c)(7) | 2009 | $134,365 | $130,705 | 2025-12 |
| Petaluma Masonic Hall Association | 501(c)(2) | 1933 | $134,115 | $685,822 | 2023-12 | |
| Petaluma Gardens Homes Association | 501(c)(7) | 1971 | $132,428 | $168,136 | 2024-12 | |
| Sonoma County Field of Honor Inc | Public and societal benefit | 501(c)(3) | 2024 | $131,500 | $100,524 | 2025-12 |
| Metta Center for Nonviolence | 501(c)(3) | 1984 | $126,850 | $165,193 | 2026-03 | |
| Order of Hermanns Sons of the State of Ca | 501(c)(8) | 1975 | $123,019 | $394,501 | 2025-03 | |
| North Coast Ballet California | Arts, culture and humanities | 501(c)(3) | 1989 | $122,966 | $40,142 | 2025-06 |
| Pta California Congress of Parents Teachers and Students Inc | 501(c)(3) | 1943 | $122,695 | $44,691 | 2025-06 | |
| Petaluma Lodge No 475 Loyal Order of Moose | 501(c)(8) | 1935 | $120,660 | $216,886 | 2026-04 | |
| Kiwanis International Inc | 501(c)(4) | 1966 | $119,065 | $160,965 | 2025-09 | |
| Little League Baseball Inc | Recreation and sports | 501(c)(3) | 1981 | $116,761 | $127,967 | 2025-09 |
| Free & Accepted Masons of California | 501(c)(10) | 1940 | $115,710 | $1.7 million | 2024-12 | |
| Cruisin the Boulevard Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $114,700 | $422,863 | 2025-09 |
| Petaluma Riding & Driving Club | 501(c)(4) | 1994 | $114,494 | $310,271 | 2024-12 | |
| Petaluma Gap Wine Growers | Community improvement and capacity building | 501(c)(6) | 2013 | $109,214 | $77,275 | 2025-12 |
| Scrutineers | Civil rights, social action and advocacy | 501(c)(3) | 2025 | $108,218 | $70,922 | 2025-12 |
| Literacyworks | Education | 501(c)(3) | 2001 | $105,350 | $28,966 | 2025-12 |
| Petaluma Leghorns Baseball Club Inc | Recreation and sports | 501(c)(3) | 2014 | $105,271 | $44,804 | 2024-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $102,790 | $82,807 | 2025-06 | |
| Lake Tahoe Secret Harbor Corp | 501(c)(7) | 1960 | $99,945 | $231,216 | 2025-12 | |
| Petaluma Historic Advocates | Arts, culture and humanities | 501(c)(3) | 2025 | $99,762 | $13,827 | 2025-12 |
| Full Stride Therapeutic Riding Center | Animal-related | 501(c)(3) | 2023 | $99,423 | $27,974 | 2025-12 |
| Plumbing Heating Cooling Contractors of the Redwood Empire | 501(c)(6) | 1993 | $94,884 | $190,029 | 2025-12 | |
| Petaluma High School Music Boosters Inc | Education | 501(c)(3) | 2010 | $94,306 | $40,786 | 2025-06 |
| International Union of Painters and Allied Trades | 501(c)(5) | 1941 | $93,305 | $235,729 | 2025-12 | |
| Gathering Thyme School of Western Herbalism Fiscally Sponsored By Ma | Health care | 501(c)(3) | 2023 | $90,869 | $33,978 | 2024-12 |
| Recovery Transportation Systems | Mental health and crisis intervention | 501(c)(3) | 2021 | $90,740 | $5,779 | 2025-12 |
| California Presenters | Arts, culture and humanities | 501(c)(3) | 1995 | $88,325 | $338,981 | 2025-12 |
| Casa Grande Athletic Foundation | Education | 501(c)(3) | 2019 | $83,603 | $55,016 | 2024-12 |
| Liberty Foundation for Education | Education | 501(c)(3) | 2014 | $75,465 | $95,213 | 2025-06 |
| Montessori Charter School Ofpetaluma | Education | 501(c)(3) | 2008 | $75,210 | $4,253 | 2025-06 |
| Petaluma Yacht Club Inc | 501(c)(7) | 1981 | $74,915 | $394,934 | 2025-10 | |
| Community Guild | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $73,301 | $156,859 | 2025-12 |
| Petaluma Valley Rotary Trust | 501(c)(3) | 1994 | $72,044 | $335,471 | 2025-06 | |
| Thrifty Paws | Human services | 501(c)(3) | 2024 | $71,204 | $9,408 | 2024-12 |
| Four Way Foundation | Public and societal benefit | 501(c)(3) | 2014 | $68,857 | $481,361 | 2025-06 |
| Old Adobe School Parent Teacher Organization | 501(c)(3) | 1992 | $68,793 | $89,527 | 2025-06 | |
| Heartfelt Help Foundation | Diseases, disorders and medical disciplines | 501(c)(3) | 2020 | $68,532 | $90,954 | 2026-05 |
| Marin County Association of Retired Employees | Human services | 501(c)(4) | 2018 | $65,436 | $100,428 | 2025-12 |
| Vintage Cutting Horse Association | 501(c)(7) | 1989 | $64,809 | $58,147 | 2025-12 | |
| Sirens Studio for Youth and the Arts | Arts, culture and humanities | 501(c)(3) | 2001 | $59,810 | $27,346 | 2025-12 |
| Georgia Riley Pellkofer Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $59,136 | $95,149 | 2025-12 |
| Peace Officers Association of Petaluma Charity | Crime and legal-related | 501(c)(3) | 2005 | $58,642 | $52,239 | 2024-12 |
| Lusitania Band of North Bay | Arts, culture and humanities | 501(c)(3) | 1997 | $58,626 | $117,847 | 2024-12 |
| Apres Ski Club Inc | 501(c)(7) | 1971 | $58,006 | $205,405 | 2026-04 | |
| Wilmar Volunteer Fire Department Inc | Public safety, disaster preparedness and relief | 501(c)(4) | 1988 | $56,729 | $1.1 million | 2025-12 |
| Miracle League North Bay | Recreation and sports | 501(c)(3) | 2017 | $56,636 | $1.4 million | 2025-12 |
| Cordell Marine Sanctuary Foundation | Science and technology | 501(c)(3) | 2009 | $56,501 | $125,507 | 2025-09 |
| Sweet Adelines International | 501(c)(3) | 1966 | $56,096 | $94,044 | 2026-04 | |
| Petaluma Wrestling Club | Recreation and sports | 501(c)(3) | 2023 | $56,018 | $53,893 | 2025-12 |
| Dunham School Parent Teacher Organization | Education | 501(c)(3) | 2006 | $55,709 | $43,461 | 2025-06 |
| Rip City Riders | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $54,304 | $819,558 | 2024-12 |
| Westwind Mutual Water Company Inc | 501(c)(12) | 1994 | $51,390 | $106,516 | 2025-12 | |
| River Town Racers | Recreation and sports | 501(c)(3) | 2019 | $50,637 | $118,933 | 2025-06 |
| Soma Aquatics Foundation Inc | Recreation and sports | 501(c)(3) | 2014 | $50,289 | $37,638 | 2025-12 |
| Aquaducks Incorporated | Recreation and sports | 501(c)(3) | 2013 | $50,101 | $122,745 | 2025-12 |
| Petaluma Womans Club Foundation Inc | Education | 501(c)(3) | 2023 | $50,036 | $186,736 | 2026-04 |
| Strides Equestrian Foundation | Recreation and sports | 501(c)(3) | 2022 | $50,000 | $80,948 | 2025-12 |
| Rotary Club of Petaluma Sunrise | Community improvement and capacity building | 501(c)(4) | 1942 | $48,367 | $18,286 | 2025-06 |
| Boulevard Heights Mutual Water Company | 501(c)(12) | 1988 | $47,592 | $226,337 | 2025-12 | |
| Tapestry Productions | Arts, culture and humanities | 501(c)(3) | 2024 | $46,922 | $34,979 | 2025-12 |
| Living Unlimited Inc | Public and societal benefit | 501(c)(3) | 2016 | $43,863 | $1.1 million | 2024-12 |
| Bookstormer Foundation | Youth development | 501(c)(3) | 2024 | $42,381 | $133,438 | 2025-12 |
| Friends of Cherry Valley Library | 501(c)(3) | 1984 | $41,290 | $65,293 | 2025-06 | |
| Two Rock Fire Department | Public safety, disaster preparedness and relief | 501(c)(3) | 2010 | $37,993 | $726,338 | 2025-12 |
| Islamic Center of Petaluma | Religion-related | 501(c)(3) | 2000 | $37,346 | $445,600 | 2025-12 |
| Flat Broke Farm Animal Rescue Inc | Animal-related | 501(c)(3) | 2015 | $36,764 | $8,633 | 2024-12 |
| Makaha Indians | Recreation and sports | 501(c)(3) | 2014 | $25,476 | $42,990 | 2024-12 |
| Edward J Boracchia Foundation | Housing and shelter | 501(c)(3) | 2004 | $22,958 | $413,632 | 2024-12 |
| Iota Foundation | Education | 501(c)(3) | 2009 | $21,306 | $411,960 | 2025-12 |
| International Order of the Rainbow Girls | 501(c)(3) | 1928 | $18,854 | $40,794 | 2024-12 | |
| Friends of the Petaluma Public Library Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $14,944 | $70,304 | 2025-12 |
| Military Women Across the Nation | 501(c)(19) | 1989 | $14,532 | $73,571 | 2025-07 | |
| Redwood Empire Holstein Friesian Association | 501(c)(5) | 1971 | $13,871 | $113,636 | 2024-12 | |
| Garrett Paiz Firefighter Memorial Fund Inc | Community improvement and capacity building | 501(c)(3) | 2023 | $8,674 | $6,897 | 2024-12 |
| Grand Lodge of the Order of Hermanns Sons of the State of Ca | 501(c)(8) | 1975 | $7,563 | $141,937 | 2025-03 | |
| Pan Cretan Chapter of Marin and Sonoma Counties Inc | Social science | 501(c)(7) | 2014 | $6,835 | $23,013 | 2024-12 |
| Birthright of Petaluma | 501(c)(3) | 1976 | $5,640 | $72,422 | 2024-12 | |
| Coastal Engineering Foundation | Environment | 501(c)(3) | 2005 | $4,259 | $83,227 | 2024-12 |
| American-Mexican Association USA Inc | Human services | 501(c)(3) | 2025 | $4,096 | $12,736 | 2025-12 |
| Lakeville Volunteer Fire Department Incorporated | 501(c)(3) | 1983 | $2,895 | $226,723 | 2025-12 | |
| Fabulous Women of Sonoma County | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $324 | $5,267 | 2025-12 |
| Petaluma Neighborhood Association | Environment | 501(c)(3) | 2013 | $15 | $11,153 | 2024-12 |
| 360 Church of Petaluma | Religion-related | 501(c)(3) | 2014 | 2018-01 | ||
| Adobe Christian Center | 501(c)(3) | 1964 | ||||
| All About Owls Inc | Animal-related | 501(c)(3) | 2018 | $0 | $0 | 2025-09 |
| Alvin James Hansen Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $8.8 million | 2025-06 | |
| American Association of University Women Inc | Education | 501(c)(4) | 2010 | $0 | $0 | 2026-06 |
| American Federation of Teacheers | 501(c)(5) | 1967 | $0 | $0 | 2025-06 | |
| American Vaulting Association | 501(c)(3) | 1988 | $0 | $0 | 2023-12 | |
| Arntz Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1995 | $9.7 million | 2025-09 | |
| Art & Music Gallery Inc | Arts, culture and humanities | 501(c)(7) | 2025 | $0 | $0 | 2024-12 |
| Arts Connect | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Association of Traditional Hooking Artists | Arts, culture and humanities | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Athletic Edge Inc | Recreation and sports | 501(c)(3) | 2008 | $0 | $0 | 2025-06 |
| Ayni Projects | 501(c)(3) | 1986 | $0 | $0 | 2024-12 | |
| Azaya Ranch Sanctuary | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $347,505 | 2025-06 | |
| Bahais of Petaluma | 501(c)(3) | 1995 | ||||
| Bahais of Sonoma Co Supv Dist 2 | 501(c)(3) | 1995 | ||||
| Baraka Girls | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Bay Area Art Conservation Guild | Arts, culture and humanities | 501(c)(3) | 2017 | $0 | $0 | 2026-06 |
| Beautify Petaluma | Community improvement and capacity building | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Beit Ayin | Religion-related | 501(c)(3) | 2013 | $0 | $0 | 2023-12 |
| Bellwether Farms Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $9,980 | 2024-12 | |
| Bernese Mountain Dog Club of Northern California | Animal-related | 501(c)(4) | 2001 | $0 | $0 | 2025-12 |
| Blind Science | Education | 501(c)(3) | 2012 | $0 | $0 | 2023-12 |
| Bob Gnaizda Youth Leaders Inc | Youth development | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| C S Fund | 501(c)(3) | 1984 | $5 million | 2025-09 | ||
| CG Spouse Association of Petaluma | 501(c)(3) | 2024 | $0 | $0 | 2025-12 | |
| Cafriends of Veterans Inc | Human services | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Caley J Brown Foundation | Human services | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Cali Gold Fastpitch - North Bay | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Califonia Teachers Association | 501(c)(5) | 1976 | $0 | $0 | 2025-08 | |
| California Association of Community Health Workers | Health care | 501(c)(3) | 2023 | $0 | $0 | 2024-07 |
| California Garden Clubs Inc | Environment | 501(c)(3) | 1969 | $0 | $0 | 2026-06 |
| California Hepatitis C Task Force | Health care | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| California Jug Band Association | Arts, culture and humanities | 501(c)(3) | 2008 | $0 | $0 | 2025-08 |
| California Mathematics Council Community Colleges | 501(c)(6) | 1992 | $0 | $0 | 2026-06 | |
| California Mathematics Council Community Colleges Foundation | Education | 501(c)(3) | 1995 | $0 | $0 | 2026-06 |
| California Optometric Association | 501(c)(6) | 1966 | $0 | $0 | 2026-02 | |
| California Teachers Association | 501(c)(5) | 1976 | $0 | $0 | 2025-08 | |
| California Teachers Association | 501(c)(5) | 1976 | $0 | $0 | 2026-01 | |
| California Teachers Association | 501(c)(5) | 1976 | $0 | $0 | 2025-08 | |
| California Teachers Association | Employment | 501(c)(5) | 1976 | $0 | $0 | 2024-08 |
| Calvary Chapel of Petaluma | Religion-related | 501(c)(3) | 1996 | |||
| Chabad Jewish Center of Petaluma | Religion-related | 501(c)(3) | 2016 | |||
| Chrysalis | Public and societal benefit | 501(c)(3) | 2023 | $0 | $0 | 2026-01 |
| Cinnabar Educational Foundation | Education | 501(c)(3) | 1983 | $0 | $0 | 2025-08 |
| City of Petaluma Public Financing Corporation | 501(c)(3) | 1991 | $0 | $1 | 2025-06 | |
| Come and C Inc | Human services | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Community Land Shepherds | Environment | 501(c)(3) | 2024 | $0 | $2,600 | 2025-08 |
| Congress for the New Urbanism California Chapter | Education | 501(c)(3) | 2010 | $0 | $0 | 2024-12 |
| Cool Future | Community improvement and capacity building | 501(c)(3) | 2026 | |||
| Creators Equity Foundation | 501(c)(3) | 1982 | $264,924 | 2025-12 | ||
| Custom Costumes Drama Camp | Arts, culture and humanities | 501(c)(3) | 2024 | |||
| Danish Soldiers Club of Northern California | Recreation and sports | 501(c)(7) | 2012 | $0 | $0 | 2024-12 |
| Daughters of Norway | 501(c)(8) | 1991 | $0 | $0 | 2026-06 | |
| Deleon Judo Club Inc | Recreation and sports | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Digging in Gardens in Sonoma | Environment | 501(c)(7) | 2012 | $0 | $0 | 2025-06 |
| Early Bird Fellowship of Petaluma | Mental health and crisis intervention | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| East Side Friends of Music | Education | 501(c)(3) | 2003 | $0 | $0 | 2025-06 |
| Eating Disorder Recovery Support Edrs Inc | Mental health and crisis intervention | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| El Dia de Los Muertos Petaluma | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Elim Lutheran Church | 501(c)(3) | 1988 | ||||
| Embroiderers Guild of America Inc | 501(c)(3) | 1976 | ||||
| Excutive Womens Golf Association Inc | Community improvement and capacity building | 501(c)(6) | 1997 | $0 | $0 | 2025-12 |
| Fields of the Wood Inc | 501(c)(3) | 1977 | ||||
| Foundation for Community Government Entrepreneurship | Human services | 501(c)(3) | 2021 | $0 | $0 | 2025-09 |
| Foundation for Womens Financial Literacy | Education | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Freedom Farm Incorporated | Animal-related | 501(c)(3) | 2024 | |||
| Friends of Bellweather | Environment | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Friends of the San Pablo Bay National Wildlife Refuge | Animal-related | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Friends of the Sonoma-Marin Fairgrounds & Event Center | Food, agriculture and nutrition | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Gamma Chapter Alumni Association | Education | 501(c)(3) | 2022 | $0 | $0 | 2026-06 |
| Global Peace Yes | International, foreign affairs and national security | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Guided To Safety | Human services | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Guildworks Iabraham | 501(c)(3) | 2011 | $0 | $0 | 2025-12 | |
| Gulch Environmental Foundation | Environment | 501(c)(3) | 2020 | $615,416 | 2025-12 | |
| Harrison Mecham Relief Fund of Petaluma | 501(c)(3) | 1973 | $667,267 | 2024-12 | ||
| Heart and Hands Farm Trust | Education | 501(c)(3) | 2025 | |||
| Himalayas Fiddle Adventures Inc | Arts, culture and humanities | 501(c)(3) | 2010 | $0 | $0 | 2024-12 |
| Home Works Foundation | Human services | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Hymnstream | Religion-related | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Iglesia Mision Evangelica | Religion-related | 501(c)(3) | 2011 | |||
| Iglesia Pentecostales de Avivamiento | Religion-related | 501(c)(3) | 2024 | |||
| Iglesia de Cristo El Renuevo | Religion-related | 501(c)(3) | 2009 | |||
| Imagination Foundation for the Arts Education and the Environment | Arts, culture and humanities | 501(c)(3) | 2006 | $1.6 million | 2024-12 | |
| Infinite Hope International Inc | Religion-related | 501(c)(3) | 2018 | $56,842 | 2024-12 | |
| Inner Light Foundation Inc | 501(c)(3) | 1971 | $0 | $0 | 2025-09 | |
| International Association of Fire Fighters | 501(c)(5) | 1959 | $0 | $0 | 2025-09 | |
| International Association of Lions Clubs | 501(c)(4) | 1940 | $0 | $0 | 2025-06 | |
| International Association of Lions Clubs | 501(c)(4) | 1940 | $0 | $0 | 2025-06 | |
| International Institute for Humanistic Studies Inc | Education | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| International Projects Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Intertwine Vine Network | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Investigatenow | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Irc Africa Inc | Human services | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Ireri Ballet Folklorico | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Italian Catholic Federation of California Inc | 501(c)(8) | 1972 | $0 | $0 | 2025-12 | |
| Italian Chamber of Commerce Northern California | Community improvement and capacity building | 501(c)(6) | 2024 | $0 | $0 | 2025-12 |
| JP Lacrosse Club Inc | Youth development | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Jay Chiat Foundation Jay Chait Ttee | 501(c)(3) | 1986 | $1.7 million | 2025-12 | ||
| Kelso Institute for the Study of Economic Systems | 501(c)(3) | 1966 | $35,053 | 2024-12 | ||
| Kerry Blue Terrier Club of Northern California | Recreation and sports | 501(c)(7) | 2013 | $0 | $0 | 2025-11 |
| Kids N K9S | 501(c)(3) | 2018 | $0 | $0 | 2025-12 | |
| Kingdom Commentary | Religion-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Kings Chapel | 501(c)(3) | 1991 | ||||
| Kitty Committee | Animal-related | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Kiwanis of Petaluma Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $430,076 | 2025-09 | |
| Knights of Columbus | Mutual and membership benefit | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Krasny Conversations Inc | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| L H Yokoshi No Tomo of America | Religion-related | 501(c)(3) | 1994 | |||
| Living Faith Church of Petaluma | Religion-related | 501(c)(3) | 2002 | |||
| Living Word Lutheran Church | 501(c)(3) | 1966 | ||||
| Loch Haven Mutual Water Company | 501(c)(12) | 1967 | $0 | $0 | 2025-12 | |
| Lokahi Outrigger Canoe Club of Sonoma County | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Lorne and Ilona Parker Foundation | Public and societal benefit | 501(c)(3) | 2014 | $2.9 million | 2024-12 | |
| Mahakaruna Kadampa Buddhist Center | Religion-related | 501(c)(3) | 2008 | |||
| Marin Summer Theater | Arts, culture and humanities | 501(c)(3) | 2012 | $0 | $0 | 2025-08 |
| Marmontor Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $573,877 | 2022-12 | |
| Medical Society of Sonoma County | Health care | 501(c)(3) | 2017 | $0 | $37,113 | 2024-12 |
| Methionine Task Force | Food, agriculture and nutrition | 501(c)(5) | 2017 | $0 | $0 | 2026-06 |
| Ministerios Bethel Petaluma Internacional | Religion-related | 501(c)(3) | 2023 | |||
| Miwok Valley Pto | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-06 |
| Napa Soccer Academy | Recreation and sports | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| National Association of Postal Supervisors North Coast Branch 497 | Employment | 501(c)(5) | 2014 | $0 | $0 | 2025-12 |
| National Junior Basketball | Recreation and sports | 501(c)(3) | 1993 | $0 | $0 | 2024-12 |
| National Society of the Sons of the American Revolution | 501(c)(3) | 1944 | $0 | $0 | 2025-12 | |
| New Roads Retreats | Human services | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Nichibei Care | Public and societal benefit | 501(c)(3) | 2015 | $0 | $0 | 2025-09 |
| Nicholson Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $6.9 million | 2025-12 | |
| Nogashereorg | Public safety, disaster preparedness and relief | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| North Bay Animal Services | Animal-related | 501(c)(3) | 2019 | $519,456 | 2024-12 | |
| North Bay Dairy Women | 501(c)(5) | 1977 | $0 | $0 | 2025-12 | |
| North Bay Korean American Presbyterian Church | Religion-related | 501(c)(3) | 1998 | |||
| Oncology Nursing Society | 501(c)(6) | 1981 | ||||
| Open Tap Initiative | Food, agriculture and nutrition | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Open Word Fellowship | Religion-related | 501(c)(3) | 2022 | |||
| Order of Hermanns Sons of the State of Ca | 501(c)(8) | 1975 | ||||
| Owl Foundation | Human services | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Own the Line Camps Inc | Recreation and sports | 501(c)(3) | 2025 | |||
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $0 | $0 | 2023-06 |
| Parents of Petaluma Parent Nursery School | Education | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Paula Lane Action Network | Community improvement and capacity building | 501(c)(3) | 2004 | $0 | $0 | 2025-10 |
| Pby Catalina Foundation Inc | 501(c)(3) | 1993 | $0 | $0 | 2025-12 | |
| Peaceful World Foundation | Education | 501(c)(3) | 2008 | $3.4 million | 2024-12 | |
| Petaluma Active 20-30 Number 30 | Human services | 501(c)(3) | 2013 | $0 | $0 | 2025-06 |
| Petaluma Adult Sports | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Petaluma Area Pilots Association | 501(c)(3) | 1981 | $0 | $0 | 2025-12 | |
| Petaluma California City Employees Local Number 675 | Employment | 501(c)(5) | 2019 | $0 | $0 | 2025-12 |
| Petaluma Chorale | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| Petaluma Community Church | 501(c)(3) | 1985 | ||||
| Petaluma Cycling Club | Recreation and sports | 501(c)(7) | 2018 | $0 | $0 | 2025-12 |
| Petaluma Firefighters Foundation | Public safety, disaster preparedness and relief | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Petaluma Golf & Country Club Junior Golf Development | Recreation and sports | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Petaluma High Auto Shop Engineering Boosters | Education | 501(c)(3) | 2020 | $0 | $0 | 2025-07 |
| Petaluma International Military Research Center | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Petaluma Korean Church | Religion-related | 501(c)(3) | 2010 | |||
| Petaluma Mothers Club | 501(c)(7) | 1996 | $0 | $0 | 2026-06 | |
| Petaluma Outdoorsmen | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Petaluma Pickleball Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Petaluma Policing Foundation | Public and societal benefit | 501(c)(3) | 2024 | |||
| Petaluma Pride | Civil rights, social action and advocacy | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Petaluma Quilt Guild | 501(c)(3) | 1994 | $0 | $0 | 2025-08 | |
| Petaluma Readers Theatre | Arts, culture and humanities | 501(c)(3) | 2012 | $0 | $0 | 2025-06 |
| Petaluma Tennis Association | 501(c)(3) | 2016 | $0 | $0 | 2025-12 | |
| Petaluma United Methodist Church | 501(c)(3) | 1974 | ||||
| Petaluma Urban Chat | Public and societal benefit | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Petaluma Valley Hospital Auxiliary | Crime and legal-related | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Petaluma Wesley Church | 501(c)(3) | 1970 | ||||
| Petaluma Wetlands Alliance | Environment | 501(c)(3) | 2016 | $0 | $0 | 2025-06 |
| Petaluma Youth Digital Media & Broa Dcast Network | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Petalumans of Yesteryear | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Peter T Paul Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $5,230 | 2024-12 | |
| Pharmacists Planning Services Inc | Health care | 501(c)(3) | 1977 | $0 | $0 | 2025-12 |
| Phileo Christian Fellowsjip | Religion-related | 501(c)(3) | 2006 | |||
| Praxis Education Foundation | Education | 501(c)(3) | 2017 | $0 | $0 | 2025-08 |
| Protect Wild Petaluma | Environment | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $0 | $0 | 2025-06 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1998 | $0 | $0 | 2025-06 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $0 | $0 | 2025-06 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1967 | $0 | $0 | 2024-06 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1967 | $0 | $0 | 2024-06 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1967 | $0 | $0 | 2025-06 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1967 | $0 | $0 | 2026-06 | |
| Queens Lane Sanctuary Inc | Animal-related | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Rachel Sager Art Foundation | Arts, culture and humanities | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Rawhide Memorial | Recreation and sports | 501(c)(3) | 2022 | $0 | $6,880 | 2024-12 |
| Redwood Empire Military Women Unit 77 | 501(c)(4) | 2022 | $0 | $0 | 2025-07 | |
| Reflexology Association of California | Medical research | 501(c)(6) | 2014 | $0 | $0 | 2026-06 |
| Religious Science of Petaluma | 501(c)(3) | 1950 | ||||
| Renaissance Petaluma | Community improvement and capacity building | 501(c)(3) | 2026 | |||
| Riley Ranch Mutual Water Company | Mutual and membership benefit | 501(c)(12) | 2012 | $0 | $0 | 2025-12 |
| Riverway Church of Petaluma | Religion-related | 501(c)(3) | 2001 | |||
| Roblar Community Church of God | 501(c)(3) | 1960 | ||||
| Room To Roam | Environment | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Rotary Club of Petaluma Foundation | 501(c)(3) | 1985 | $700,505 | 2025-06 | ||
| Rotary International | 501(c)(4) | 1942 | $0 | $0 | 2025-06 | |
| Roxys Ranch Haven | Animal-related | 501(c)(3) | 2025 | |||
| Saffron Arts and Culture | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $1 | 2025-12 |
| Saint John Lutheran Church | 501(c)(3) | 1941 | ||||
| Sakha Teteam Inc | Arts, culture and humanities | 501(c)(3) | 2025 | $1 | 2025-12 | |
| San Francisco Jazz Dance Company | 501(c)(3) | 1985 | $0 | $0 | 2026-06 | |
| Save the People Wesleyan Ministry | 501(c)(3) | 1970 | ||||
| Saving Senior Dogs USA | Animal-related | 501(c)(3) | 2026 | |||
| Science of the Soul | Religion-related | 501(c)(3) | 2010 | |||
| Seathletes | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Ship 1 - Petaluma Sea Scouts | Youth development | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Signal Path Initiative | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Sikora Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $432,011 | 2025-12 | |
| Sion Adv Church | Religion-related | 501(c)(3) | 2020 | |||
| Society for the Preservation of Occult Consciousness | 501(c)(3) | 1977 | ||||
| Sonoma Coast Trauma Treatment | Health care | 501(c)(3) | 2011 | $0 | $0 | 2026-03 |
| Sonoma County Blues Society Inc | Arts, culture and humanities | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Sonoma County Bowman | Recreation and sports | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Sonoma County Deputy Sheriffs K-9 Association | Crime and legal-related | 501(c)(3) | 2011 | $0 | $0 | 2024-12 |
| Sonoma County Matsuri Festival | Arts, culture and humanities | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Sonoma County Safe and Sober Project Graduation | 501(c)(3) | 2012 | ||||
| Sonoma County Safe and Sober Project Graduation | 501(c)(3) | 2012 | ||||
| Sonoma County Safe and Sober Project Graduation | 501(c)(3) | 2012 | ||||
| Sonoma County United Veterans Council | 501(c)(19) | 1978 | $0 | $0 | 2025-06 | |
| Sonoma Foundation for Behavioral Health | Mental health and crisis intervention | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Sonoma Marin Swiss Club | 501(c)(7) | 1981 | $0 | $0 | 2026-07 | |
| Sonoma Psycho-Oncology | Diseases, disorders and medical disciplines | 501(c)(3) | 2009 | $0 | $0 | 2025-10 |
| Sonoma Valley Muzzle Loaders Inc | Recreation and sports | 501(c)(7) | 2013 | $0 | $0 | 2025-12 |
| South County Consortium Pto | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Sped Behavior Analysis Solutions Co Rporation | Health care | 501(c)(3) | 2025 | |||
| Spiritworks | Religion-related | 501(c)(3) | 2000 | |||
| St Ambrose Acting Group | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| St Johns Anglican Church in Sonoma County | Religion-related | 501(c)(3) | 2014 | |||
| St Peter and Paul Russian Orthodox Church | 501(c)(3) | 1979 | ||||
| St Vincent de Paul High School | 501(c)(3) | 1946 | ||||
| St Vincents Elementary School | 501(c)(3) | 1946 | ||||
| Sunflower Roots Inc | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Tambourine Vaulters | Recreation and sports | 501(c)(3) | 2004 | $0 | $0 | 2025-08 |
| Tasbot Labs Inc | Arts, culture and humanities | 501(c)(3) | 2026 | $0 | $0 | 2026-01 |
| Task Force for Animal Health | Animal-related | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Technology Strategies for Nonprofit Innovation | Science and technology | 501(c)(3) | 2024 | |||
| The Minnie and August@cooke Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $1.1 million | 2025-12 | |
| The Petaluma Sea Scouts | Youth development | 501(c)(3) | 2024 | $26,905 | 2025-05 | |
| Thrive Through Sports | Recreation and sports | 501(c)(3) | 2025 | |||
| Thunderbolts | Recreation and sports | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2023-12 | |
| Traditional Archers of California | Recreation and sports | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Trevor Smith Memorial Foundation | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Trinity Church Orthodox Presbyterian | 501(c)(3) | 1969 | ||||
| Trinity Presbyterian Church North Bay | Religion-related | 501(c)(3) | 2021 | |||
| Trout Unlimited | 501(c)(3) | 1972 | $0 | $0 | 2026-03 | |
| Twinkle of Hope Foundation | Human services | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Two Rock School Education Foundation | Education | 501(c)(3) | 2019 | $0 | $0 | 2026-06 |
| USA Patient Network | Education | 501(c)(3) | 2020 | $0 | $0 | 2026-03 |
| Underdogz | Public and societal benefit | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| United Church of God - San Francisco Bay Area Inc | Religion-related | 501(c)(3) | 2018 | |||
| United States Bowling Congress Inc | Recreation and sports | 501(c)(3) | 2004 | $0 | $0 | 2026-07 |
| United States of America Womens Cricket Academy | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Valor Ranch Ministries Inc | Religion-related | 501(c)(3) | 2025 | |||
| Veterans of Foreign Wars Department of California | 501(c)(19) | 1958 | $0 | $0 | 2025-12 | |
| Veterans of Foreign Wars of the United States Auxiliary | Public and societal benefit | 501(c)(19) | 2000 | $0 | $0 | 2025-06 |
| Vietnam Veterans of America Inc | 501(c)(19) | 1984 | $0 | $0 | 2025-02 | |
| Vintach Org | Human services | 501(c)(3) | 2025 | |||
| Wags N Wishes | Animal-related | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Warsh Mott Legacy | 501(c)(3) | 1985 | $51.1 million | 2025-09 | ||
| Waste Not Community Gardens | Food, agriculture and nutrition | 501(c)(3) | 2026 | |||
| Weinreb Pilecki Segal Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2017 | $883,105 | 2025-12 | |
| West Coast Icons Booster Club | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| West Coast Recovery Team | Housing and shelter | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| West County Community Church | 501(c)(3) | 1985 | ||||
| West Marin Acupuncture Collective | 501(c)(3) | 2017 | $0 | $0 | 2023-12 | |
| White Barn Project | Mental health and crisis intervention | 501(c)(3) | 2019 | $183,796 | 2024-12 | |
| Wholistic Life Church Inc | 501(c)(3) | 1987 | ||||
| Wild Narrative Project Corporation | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| World Collaboration Games | 501(c)(3) | 1980 | $0 | $0 | 2025-12 | |
| Young Scientists of Sonoma | Education | 501(c)(3) | 2025 | |||
| Zenny Ugandan Peace Promise Orphanage - Zuppo | Human services | 501(c)(3) | 2025 | $0 | $0 | 2026-01 |
| Zimbabwe Cutural Exchange Project of California | Arts, culture and humanities | 501(c)(3) | 2023 | $1,569 | 2026-01 | |
| Elks Hall Association of Petaluma | 501(c)(12) | 1960 | $-54,300 | $1.9 million | 2026-03 |
By cause in Petaluma, CA
- Arts, culture and humanities 50
- Education 47
- Recreation and sports 41
- Religion-related 31
- Human services 21
- Animal-related 19
- Philanthropy, voluntarism and grantmaking foundations 19
- Health care 14
- Environment 13
- Community improvement and capacity building 12
- Public and societal benefit 10
- Mental health and crisis intervention 7
- Employment 6
- Youth development 6
- International, foreign affairs and national security 5
- Housing and shelter 5
- Food, agriculture and nutrition 5
- Public safety, disaster preparedness and relief 5
- Crime and legal-related 4
- Diseases, disorders and medical disciplines 3
- Science and technology 3
- Civil rights, social action and advocacy 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.