Data / Nonprofits / California / SN Luis Obisp
Nonprofits in SN Luis Obisp, CA: 499 registered with the IRS
499 nonprofits are registered with the IRS in SN Luis Obisp, CA, 387 of them 501(c)(3) charities; the 230 that report revenue took in $394 million. The largest by revenue: Community Action Partnership of San Luis Obispo County Inc ($127.6 million), Peoples Self-Help Housing Corporation ($27 million), Transitions - Mental Health Association ($22.3 million). Most common causes: recreation and sports (40), education (38), arts, culture and humanities (31).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Community Action Partnership of San Luis Obispo County Inc | 501(c)(3) | 1966 | $127.6 million | $61.4 million | 2025-03 | |
| Peoples Self-Help Housing Corporation | Housing and shelter | 501(c)(3) | 1971 | $27 million | $163.2 million | 2025-06 |
| Transitions - Mental Health Association | 501(c)(3) | 1999 | $22.3 million | $21.9 million | 2025-06 | |
| Family Care Network Inc | 501(c)(3) | 1992 | $19.1 million | $22.4 million | 2025-06 | |
| Food Bank Coalition of San Luis Obispo County | Food, agriculture and nutrition | 501(c)(3) | 1988 | $12.5 million | $17.4 million | 2025-06 |
| San Luis Obispo Classical Academy | Education | 501(c)(3) | 2006 | $12.2 million | $8.9 million | 2025-06 |
| Community Foundation San Luis Obispo County | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $10.6 million | $98.9 million | 2025-12 |
| Options Family of Services | 501(c)(3) | 1986 | $9.7 million | $15.8 million | 2025-06 | |
| San Luis Obispo Visitors & Conference Bureau Incorporated | 501(c)(6) | 1990 | $9.3 million | $7.4 million | 2025-06 | |
| United Cerebral Palsy of San Luis Obispo County | Human services | 501(c)(3) | 1995 | $8.1 million | $2.8 million | 2025-06 |
| The Land Conservancy of San Luis Obispo County | Environment | 501(c)(3) | 1984 | $7.2 million | $40.5 million | 2025-06 |
| Cuesta College Foundation | Education | 501(c)(3) | 1973 | $6.2 million | $60.4 million | 2025-06 |
| Lumina Alliance | Human services | 501(c)(3) | 1979 | $6 million | $5.1 million | 2025-06 |
| San Luis Obispo Community Fire Safe Council Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2002 | $5.4 million | $1 million | 2025-12 |
| Woods Humane Society Inc | Animal-related | 501(c)(3) | 1964 | $4.9 million | $16.6 million | 2025-06 |
| Duncan Group | Housing and shelter | 501(c)(3) | 1996 | $4.2 million | $4.9 million | 2025-06 |
| San Luis Obispo Repertory Theatre | Arts, culture and humanities | 501(c)(3) | 1970 | $4.2 million | $10.6 million | 2025-06 |
| Senior Nutrition Program | Food, agriculture and nutrition | 501(c)(3) | 1999 | $3.7 million | $1.8 million | 2025-06 |
| Access Support Network | 501(c)(3) | 1992 | $3.7 million | $3.3 million | 2025-06 | |
| San Luis Obispo Nonprofit Housing Corporation | 501(c)(3) | 1995 | $3.6 million | $32.1 million | 2024-12 | |
| Community Counseling Center of San Luis Obispo County | 501(c)(3) | 1981 | $3 million | $2.5 million | 2025-06 | |
| San Luis Obispo County Housing Trust Fund | Housing and shelter | 501(c)(3) | 2003 | $3 million | $31.6 million | 2025-12 |
| Restorative Partners Inc | Crime and legal-related | 501(c)(3) | 2015 | $2.6 million | $3 million | 2025-06 |
| Bellevue Santa Fe Charter School Inc | Education | 501(c)(3) | 1996 | $2.5 million | $1.3 million | 2025-06 |
| Highway 1 Tourism Alliance | Community improvement and capacity building | 501(c)(6) | 2025 | $2.5 million | $2.5 million | 2025-06 |
| KCBX Inc | 501(c)(3) | 1974 | $2.3 million | $1.4 million | 2025-09 | |
| Habitat for Humanity International Inc | 501(c)(3) | 1987 | $2.3 million | $7.6 million | 2025-06 | |
| Jacks Helping Hand Inc | Human services | 501(c)(3) | 2006 | $2 million | $11.7 million | 2025-12 |
| San Luis Obispo Child Development Center | 501(c)(3) | 1971 | $1.9 million | $1.5 million | 2025-06 | |
| Court Appointed Special Advocates of San Luis Obispo County Inc | Civil rights, social action and advocacy | 501(c)(3) | 1994 | $1.7 million | $1.6 million | 2025-06 |
| Mission Community Services Corporation | Community improvement and capacity building | 501(c)(3) | 2003 | $1.7 million | $1.3 million | 2024-12 |
| San Luis Obispo Legal Assistance Foundation | Crime and legal-related | 501(c)(3) | 1993 | $1.6 million | $1.2 million | 2025-06 |
| San Luis Obispo County Child Abuse Prevention Council | Crime and legal-related | 501(c)(3) | 1997 | $1.6 million | $447,828 | 2025-06 |
| San Luis Obispo Downtown Association | Community improvement and capacity building | 501(c)(6) | 2008 | $1.5 million | $485,440 | 2025-06 |
| Chamber of Commerce San Luis Obispo | 501(c)(6) | 1945 | $1.5 million | $2 million | 2024-12 | |
| Central Coast Youth Sports Association | Recreation and sports | 501(c)(3) | 2023 | $1.5 million | $2.3 million | 2025-12 |
| International Brotherhood of Electrical Workers | 501(c)(5) | 1940 | $1.4 million | $3.4 million | 2025-06 | |
| Slo Credit Union | 501(c)(14) | 1961 | $1.3 million | $33.1 million | 2024-12 | |
| Mozart Festival Association | Arts, culture and humanities | 501(c)(3) | 1972 | $1.3 million | $427,565 | 2025-09 |
| Slo Noor Foundation A Non-Profit Corporation | Health care | 501(c)(3) | 2010 | $1.3 million | $970,955 | 2024-12 |
| South Bay Improvement Association | Housing and shelter | 501(c)(3) | 1989 | $1.3 million | $4.9 million | 2025-06 |
| San Luis Obispo Symphony Inc | Arts, culture and humanities | 501(c)(3) | 1979 | $1.2 million | $856,302 | 2025-06 |
| San Luis Obispo County Employees Association | 501(c)(5) | 1970 | $1.2 million | $1.8 million | 2024-12 | |
| One Cool Earth | Environment | 501(c)(3) | 2001 | $1.2 million | $695,129 | 2025-12 |
| Harvestly Inc | Food, agriculture and nutrition | 501(c)(3) | 2017 | $1.1 million | $252,384 | 2025-12 |
| San Luis Obispo Career Technical Education Foundation | Education | 501(c)(3) | 2021 | $1 million | $2.1 million | 2025-06 |
| Mountain Pacific Sports Federation | Recreation and sports | 501(c)(3) | 2000 | $983,290 | $579,263 | 2025-06 |
| Free & Accepted Masons of California | 501(c)(10) | 1940 | $977,140 | $3.7 million | 2024-12 | |
| Foundation for the Performing Arts Center | Arts, culture and humanities | 501(c)(3) | 1987 | $966,800 | $9.4 million | 2025-06 |
| Urban Forest Institute | Science and technology | 501(c)(3) | 2023 | $878,676 | $160,042 | 2025-12 |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $867,554 | $1.6 million | 2025-03 | |
| San Luis Coastal Education Foundation | Education | 501(c)(3) | 2018 | $853,252 | $13.9 million | 2025-06 |
| United Association of Journeymen & Apprentices of the Plumbing & Pipe | 501(c)(5) | 1941 | $834,916 | $587,221 | 2024-12 | |
| San Luis Obispo International Film Festival Inc | 501(c)(3) | 1994 | $793,394 | $86,825 | 2025-06 | |
| San Luis Obispo Museum of Art | Arts, culture and humanities | 501(c)(3) | 1966 | $779,242 | $774,842 | 2025-06 |
| Big Brothers-Big Sisters of San Luis Obispo County | 501(c)(3) | 1994 | $728,291 | $380,375 | 2025-12 | |
| Edna-Islay Housing Corporation | Housing and shelter | 501(c)(3) | 1989 | $725,667 | $4.5 million | 2024-12 |
| National Assistance League | 501(c)(3) | 1994 | $719,212 | $1.1 million | 2026-05 | |
| Christ Classical School Inc | Education | 501(c)(3) | 2016 | $717,911 | $278,347 | 2025-06 |
| Operation Surf | Health care | 501(c)(3) | 2010 | $703,132 | $210,243 | 2025-12 |
| Worldwide Opportunities On Organic Farms - USA | Food, agriculture and nutrition | 501(c)(3) | 2010 | $694,668 | $3.4 million | 2025-12 |
| San Luis Obispo County Elect Joint Appenticeship & Training Trust Fund | Education | 501(c)(3) | 2014 | $659,123 | $2.9 million | 2025-01 |
| Friends of San Luis Obispo Botanical Garden | Environment | 501(c)(3) | 1996 | $615,396 | $1.6 million | 2024-12 |
| Central Coast State Parks Association | Arts, culture and humanities | 501(c)(3) | 1996 | $593,547 | $296,453 | 2025-12 |
| Gamma Phi Beta Sorority Inc | 501(c)(7) | 1940 | $589,178 | $41,253 | 2025-07 | |
| Fair Trade San Luis Obispo Inc | International, foreign affairs and national security | 501(c)(3) | 2007 | $569,470 | $495,857 | 2025-12 |
| Hospice Du Rhone | Community improvement and capacity building | 501(c)(6) | 2004 | $516,573 | $552,946 | 2025-08 |
| Center for Youth Mental Health | Mental health and crisis intervention | 501(c)(3) | 2023 | $495,057 | $117,012 | 2025-12 |
| San Luis Obispo County Farm Bureau Inc | 501(c)(5) | 1948 | $483,069 | $2.2 million | 2025-08 | |
| San Luis Obispo Childrens Museum | Arts, culture and humanities | 501(c)(3) | 1995 | $444,808 | $2.3 million | 2024-12 |
| San Luis Obispo A L P H A Inc | 501(c)(3) | 1982 | $435,137 | $150,909 | 2024-12 | |
| Foundation for San Luis Obispo County Public Libraries | Education | 501(c)(3) | 1998 | $434,557 | $5.5 million | 2026-06 |
| Central Coast Village Center Inc | Education | 501(c)(3) | 2006 | $428,944 | $95,749 | 2025-08 |
| Omicron Mu Chapter of Chi Omega | Recreation and sports | 501(c)(7) | 2025 | $426,230 | $147,466 | 2025-06 |
| Friends of 40prado | Housing and shelter | 501(c)(3) | 2000 | $424,389 | $485,144 | 2025-06 |
| Slo Climate Coalition | Environment | 501(c)(3) | 2024 | $418,019 | $110,788 | 2025-06 |
| Sloca Thrift Store LLC | Education | 501(c)(3) | 2016 | $409,035 | $120,851 | 2025-06 |
| Long Term Care Ombudsman Services of San Luis Obispo County | Civil rights, social action and advocacy | 501(c)(3) | 1984 | $397,610 | $907,020 | 2025-06 |
| Chapel Court Housing Corporation | Housing and shelter | 501(c)(3) | 1990 | $395,903 | $2.6 million | 2024-12 |
| Friends of Camp Natoma | Human services | 501(c)(3) | 2014 | $388,815 | $271,981 | 2024-12 |
| Feline Network of the Central Coast | Animal-related | 501(c)(3) | 2002 | $362,831 | $1.2 million | 2025-12 |
| Flying Samaritans | International, foreign affairs and national security | 501(c)(3) | 1965 | $354,898 | $768,443 | 2025-06 |
| Slo4home Inc | Public and societal benefit | 501(c)(3) | 2022 | $349,809 | $326,246 | 2024-12 |
| United Way of San Luis Obispo County | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1980 | $344,166 | $1.1 million | 2025-06 |
| San Luis Obispo County Bicycle Coalition | Public and societal benefit | 501(c)(3) | 2003 | $333,190 | $230,541 | 2024-12 |
| Vintage Traditions Foundation | Human services | 501(c)(3) | 2019 | $318,837 | $892,944 | 2024-12 |
| Masonic Hall Association | 501(c)(2) | 1941 | $306,748 | $558,597 | 2024-12 | |
| American Factoring Association | Community improvement and capacity building | 501(c)(6) | 2010 | $290,550 | $351,882 | 2024-12 |
| The Gala Pride and Diversity Center | 501(c)(3) | 1994 | $290,161 | $1.2 million | 2024-12 | |
| Smart Share Housing Solutions Inc | Housing and shelter | 501(c)(3) | 2017 | $288,075 | $106,756 | 2025-12 |
| Five Cities Diversity Coalition | Civil rights, social action and advocacy | 501(c)(3) | 2018 | $286,180 | $144,486 | 2025-06 |
| Slo Swim Club Inc | Recreation and sports | 501(c)(3) | 2022 | $278,967 | $80,676 | 2025-12 |
| The Monday Clubhouse Conservancy | Community improvement and capacity building | 501(c)(3) | 2017 | $275,856 | $1.1 million | 2026-05 |
| San Luis Obispo County Builders Exchange | 501(c)(6) | 1973 | $274,370 | $1 million | 2025-06 | |
| Anza Vineyard Estates Mutual Water Company | Mutual and membership benefit | 501(c)(12) | 2020 | $271,878 | $128,007 | 2024-12 |
| San Luis Obispo County Deputy Sheriffs Association | 501(c)(5) | 1977 | $271,814 | $610,983 | 2024-12 | |
| Zeta Phi Chapter of Theta Chi Fraternity | Education | 501(c)(7) | 2024 | $269,704 | $55,788 | 2025-06 |
| Grandmothers House of San Luis Obispo County | Human services | 501(c)(3) | 1998 | $258,079 | $144,078 | 2024-12 |
| Race Matters Slo County | Arts, culture and humanities | 501(c)(3) | 2022 | $256,465 | $83,389 | 2023-12 |
| Environmental Center of San Luis Obispo | Environment | 501(c)(3) | 1972 | $254,570 | $154,361 | 2025-12 |
| History Center of San Luis Obispo County | 501(c)(3) | 1955 | $245,821 | $1.2 million | 2025-12 | |
| Jewish Community Center of San Luis Obispo | Religion-related | 501(c)(3) | 2000 | $242,896 | $830,156 | 2024-12 |
| Alliance for Nuclear Responsibility | Environment | 501(c)(3) | 2007 | $238,907 | $160,140 | 2024-12 |
| Central Coast Trail Riders Association Charitable Foundation | Environment | 501(c)(3) | 2018 | $235,259 | $185,213 | 2024-12 |
| Home Builders Association of the Central Coast | 501(c)(6) | 1992 | $228,906 | $122,406 | 2024-12 | |
| Eta Rho House Corporation of Kappa Kappa Gamma | Recreation and sports | 501(c)(7) | 2014 | $220,870 | $123,236 | 2026-06 |
| Slo Tigers Athletics Boosters | Recreation and sports | 501(c)(3) | 2012 | $220,534 | $137,538 | 2025-06 |
| San Luis Obispo Sworn Deputy Sheriffs Association | Employment | 501(c)(5) | 2012 | $220,329 | $568,306 | 2024-12 |
| Sigma Pi Fraternity International Inc | Mutual and membership benefit | 501(c)(7) | 1940 | $212,918 | $73,306 | 2024-06 |
| Valentine Court II Inc | Housing and shelter | 501(c)(3) | 1996 | $209,701 | $852,521 | 2025-06 |
| San Luis Obispo County Quarter Horse Association Inc | 501(c)(7) | 1988 | $208,684 | $288,921 | 2024-12 | |
| San Luis Obispo County Arts Council | 501(c)(3) | 1982 | $206,078 | $148,787 | 2025-06 | |
| Oak Grove Housing Inc | Housing and shelter | 501(c)(3) | 2000 | $203,379 | $2.4 million | 2025-06 |
| Tri Counties Club Inc | Recreation and sports | 501(c)(4) | 2026 | $199,768 | $421,954 | 2025-12 |
| San Luis Obispo City Employees Association | 501(c)(4) | 1980 | $198,489 | $24,655 | 2025-09 | |
| San Luis Obispo County Bar Association | 501(c)(6) | 1991 | $197,789 | $126,901 | 2024-12 | |
| 1 Dream Foundation Inc | Education | 501(c)(3) | 2007 | $192,484 | $20,922 | 2025-12 |
| Central Coast Academy Inc | Recreation and sports | 501(c)(3) | 2024 | $191,642 | $7,109 | 2025-12 |
| San Luis Obispo Community Leadership Foundation | Community improvement and capacity building | 501(c)(3) | 1996 | $181,840 | $353,796 | 2024-12 |
| Epsilon Omega Chapter of Sigma Kappa House Corp | 501(c)(10) | 1981 | $177,635 | $986,603 | 2025-06 | |
| Avila Beach Junior Lifeguard Program | Youth development | 501(c)(3) | 2025 | $175,600 | $51,611 | 2024-12 |
| Slo Water Polo Club | Recreation and sports | 501(c)(3) | 2022 | $174,706 | $96,016 | 2025-08 |
| San Luis Obispo Cal Ripken Baseball | 501(c)(3) | 1970 | $172,183 | $138,367 | 2025-08 | |
| Coalition of Labor Agriculture & Business of San Luis Obispo County | Community improvement and capacity building | 501(c)(6) | 2009 | $168,494 | $157,105 | 2024-12 |
| Charles E Teach Booster Club | Education | 501(c)(3) | 1995 | $167,816 | $89,937 | 2025-06 |
| Central Coast Funds for Children | Human services | 501(c)(3) | 1994 | $166,591 | $18,668 | 2025-12 |
| Spokes | 501(c)(3) | 1997 | $160,816 | $339,883 | 2025-12 | |
| Ballet Theatre San Luis Obispo | Arts, culture and humanities | 501(c)(3) | 2017 | $157,906 | $256,548 | 2025-06 |
| Antioch Church in San Luis Obispo | Religion-related | 501(c)(3) | 2024 | $153,898 | $37,447 | 2024-12 |
| San Luis Obispo Bicycle Club Inc | Recreation and sports | 501(c)(4) | 2005 | $153,108 | $248,358 | 2025-12 |
| California Planners Foundation | Education | 501(c)(3) | 1970 | $151,650 | $887,920 | 2025-12 |
| Central Coast Dental Society | 501(c)(6) | 1983 | $149,259 | $126,566 | 2025-12 | |
| Friends of Downtown Slo Inc Point of Contact Ali Bailey | Human services | 501(c)(3) | 2018 | $147,644 | $34,158 | 2025-06 |
| Chi Epsilon Inc | Education | 501(c)(3) | 2021 | $145,194 | $517,577 | 2025-12 |
| International Association of Fire Fighters | 501(c)(5) | 1959 | $144,829 | $82,103 | 2025-12 | |
| San Luis Obispo Instrumental Music Boosters Association | Human services | 501(c)(3) | 2006 | $143,767 | $81,290 | 2025-07 |
| California Central Coast Region Porsche Club of America | 501(c)(7) | 1989 | $141,962 | $25,491 | 2025-12 | |
| Alpha Gamma Rho Fraternity | Mutual and membership benefit | 501(c)(7) | 2023 | $136,208 | $9,235 | 2025-06 |
| Slo Baseball Alliance Foundation | Recreation and sports | 501(c)(3) | 2011 | $134,539 | $166,334 | 2025-09 |
| Central Coast Youth Football League | Recreation and sports | 501(c)(3) | 2020 | $132,827 | $69,807 | 2024-12 |
| National Association of Letter Carriers | 501(c)(5) | 1944 | $132,604 | $554,222 | 2025-12 | |
| Peoples Opportunity Fund | Housing and shelter | 501(c)(3) | 2011 | $130,081 | $1.4 million | 2025-06 |
| Core Dance Company | Arts, culture and humanities | 501(c)(3) | 2014 | $127,588 | $29,776 | 2024-12 |
| Rotary International | 501(c)(4) | 1942 | $125,046 | $30,221 | 2025-06 | |
| Alano Club of San Luis Obispo County | Mental health and crisis intervention | 501(c)(3) | 2005 | $124,297 | $1.2 million | 2024-12 |
| San Luis Obispo Mothers for Peace | 501(c)(3) | 1978 | $124,114 | $143,078 | 2025-12 | |
| San Luis Obispo Fire Investigation Strike Team Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2015 | $123,304 | $78,851 | 2025-12 |
| Independent Order of Odd Fellows | 501(c)(8) | 1962 | $120,918 | $559,157 | 2024-12 | |
| Valentine Court III Inc | Human services | 501(c)(3) | 2000 | $119,811 | $671,232 | 2025-06 |
| Monastery of the Risen Christ | Religion-related | 501(c)(3) | 1988 | $116,373 | $600,157 | 2024-12 |
| California Assoc of Resource Specialists & Special Educators | 501(c)(6) | 1982 | $115,877 | $47,666 | 2025-06 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1967 | $114,914 | $103,259 | 2025-06 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1967 | $114,717 | $161,054 | 2025-06 | |
| San Luis Obispo Committee for Education On Alcoholism | 501(c)(3) | 1966 | $114,221 | $242,788 | 2025-06 | |
| Se Asia Ethnic Minority Mission Inc | Religion-related | 501(c)(3) | 2014 | $113,985 | $75,219 | 2025-12 |
| Pi Kappa Phi Fraternity | 501(c)(7) | 1941 | $112,524 | $13,522 | 2025-12 | |
| San Luis Obispo County Sheriffs Advisory Foundation | 501(c)(3) | 1993 | $110,661 | $563,214 | 2025-12 | |
| Rotary Club of San Luis Obispo de Tolosa Charities Inc | 501(c)(3) | 1993 | $109,144 | $42,072 | 2025-06 | |
| Fraternal Order of Eagles | 501(c)(8) | 1991 | $107,685 | $171,654 | 2024-05 | |
| San Luis Obispo Agricultural Youth Booster Club | Education | 501(c)(3) | 2008 | $103,806 | $279,803 | 2025-07 |
| Slo Village | Public and societal benefit | 501(c)(3) | 2016 | $103,032 | $239,775 | 2025-12 |
| Carrizo Plain Conservancy | 501(c)(3) | 2014 | $100,097 | $5.7 million | 2025-12 | |
| Alliance for Nuclear Responsibility Legal Fund | Education | 501(c)(4) | 2007 | $100,000 | $250,336 | 2024-12 |
| San Luis Obispo Vocal Arts Ensemble | Arts, culture and humanities | 501(c)(3) | 2011 | $98,434 | $41,212 | 2025-08 |
| Santa Maria Valley Contractors Association Inc | 501(c)(6) | 1965 | $98,415 | $115,054 | 2024-12 | |
| Slo Girls Softball Association | 501(c)(3) | 1990 | $97,089 | $41,059 | 2024-09 | |
| The Sensory-Cognitive Foundation for Learning Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $96,610 | $51,574 | 2024-12 |
| Slo Green Build Inc | Environment | 501(c)(3) | 2008 | $96,533 | $38,156 | 2008-12 |
| Medical Staff of Sierra Vista Regional Medical Center | Community improvement and capacity building | 501(c)(6) | 2022 | $95,924 | $140,048 | 2024-12 |
| American Legion | 501(c)(19) | 1946 | $93,592 | $626,631 | 2026-06 | |
| Smile Housing Corporation | Housing and shelter | 501(c)(3) | 1996 | $91,084 | $770,328 | 2025-06 |
| Los Ranchos Elementary School Pta | 501(c)(3) | 1943 | $87,892 | $143,762 | 2025-06 | |
| San Luis Obispo Police Association | Employment | 501(c)(4) | 2004 | $87,878 | $165,948 | 2024-06 |
| Mission School Memorial Foundation | Education | 501(c)(3) | 1970 | $85,786 | $2.2 million | 2025-12 |
| Rotary International | 501(c)(4) | 1968 | $85,381 | $34,555 | 2025-06 | |
| Callender Grove Mutual Water Company | Mutual and membership benefit | 501(c)(12) | 2011 | $83,145 | $38,122 | 2026-05 |
| San Luis Obispo Wesley Community | 501(c)(3) | 1974 | $82,346 | $680,644 | 2025-06 | |
| Central Coast Autism Spectrum Center | Diseases, disorders and medical disciplines | 501(c)(3) | 2008 | $82,229 | $45,668 | 2024-12 |
| Portuguese Holy Spirit Society Inc | 501(c)(3) | 1972 | $81,217 | $199,375 | 2025-12 | |
| San Luis Obispo Railroad Museum | 501(c)(3) | 1996 | $80,752 | $1.1 million | 2025-12 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1967 | $79,565 | $69,700 | 2025-06 | |
| Andreas Canyon Club | 501(c)(7) | 1949 | $79,527 | $972,655 | 2025-09 | |
| Rotary Club of San Luis Obispo Charities Inc | Community improvement and capacity building | 501(c)(3) | 1992 | $78,990 | $560,158 | 2025-06 |
| Monterey Bay Area Scent Work Club Inc | Animal-related | 501(c)(4) | 2019 | $78,617 | $28,061 | 2025-12 |
| CC Soccer Corporation | 501(c)(7) | 2006 | $73,966 | $83,852 | 2025-12 | |
| End Kids Cancer | Diseases, disorders and medical disciplines | 501(c)(3) | 2011 | $73,018 | $65,445 | 2024-12 |
| The San Luis Obispo Joint Labor MGMT Cooperation Committee Inc | Employment | 501(c)(5) | 2006 | $70,150 | $412,433 | 2025-06 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1967 | $69,684 | $116,846 | 2025-06 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $69,141 | $89,685 | 2025-06 | |
| Central Coast Dog Park Alliance | Animal-related | 501(c)(3) | 2023 | $68,881 | $203,024 | 2025-12 |
| Ocean View Manor Inc | Housing and shelter | 501(c)(3) | 1987 | $66,819 | $3 million | 2025-06 |
| Omicron Mu Chapter of Chi Omega House Corporation | Recreation and sports | 501(c)(7) | 2009 | $65,890 | $852,129 | 2025-06 |
| Wildstar Foundation | Arts, culture and humanities | 501(c)(3) | 2022 | $62,267 | $13,135 | 2025-12 |
| Slo Community Cares Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $60,356 | $29,607 | 2025-12 |
| Wisdom Wonder Project | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $58,472 | $7,324 | 2025-06 |
| Canzona Womens Ensemble | Arts, culture and humanities | 501(c)(3) | 2011 | $58,153 | $49,873 | 2026-06 |
| Central Coast Childrens Choir | Arts, culture and humanities | 501(c)(3) | 1997 | $57,256 | $6,680 | 2026-06 |
| Grizzly Youth Academy Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $56,728 | $199,847 | 2025-12 |
| Central Coast Veterans Memorial Museum Inc | Arts, culture and humanities | 501(c)(3) | 2002 | $54,918 | $123,603 | 2025-12 |
| Literacy for Life Organization | 501(c)(3) | 1983 | $53,999 | $151,923 | 2025-06 | |
| Bellevue Santa Fe Chapter School Bulldog Parent Teacher Org | Education | 501(c)(3) | 2023 | $53,825 | $125,184 | 2025-06 |
| Full Life Ministries Inc | Religion-related | 501(c)(3) | 2020 | $53,133 | $3,875 | 2025-12 |
| Womenade Slo Inc | Human services | 501(c)(3) | 2025 | $52,319 | $13,180 | 2025-12 |
| Slo Mustangs Youth Club Baseball | Youth development | 501(c)(3) | 2022 | $51,803 | $22,193 | 2024-12 |
| League of Women Voters of San Luis Obispo | Civil rights, social action and advocacy | 501(c)(3) | 2017 | $51,467 | $230,988 | 2025-06 |
| San Luis Obispo Friends of the Library | 501(c)(3) | 1988 | $50,829 | $207,971 | 2025-06 | |
| San Luis Obispo Daybreak Rotary Club | Community improvement and capacity building | 501(c)(3) | 1999 | $50,823 | $321,193 | 2025-06 |
| San Luis Obispo County Probation Peace Officers Association Inc | Employment | 501(c)(5) | 2007 | $49,088 | $225,927 | 2024-12 |
| Camp San Luis Obispo Officers Club | 501(c)(7) | 1987 | $45,138 | $82,256 | 2025-06 | |
| Oceanside Gardens Inc | Housing and shelter | 501(c)(3) | 1995 | $45,000 | $285,588 | 2025-12 |
| Valentine Court Inc | Human services | 501(c)(3) | 2000 | $41,223 | $2 million | 2025-06 |
| Along Comes Hope Corporation | Health care | 501(c)(3) | 2013 | $40,639 | $4,892 | 2024-12 |
| Oak Forest Apartments Inc | Housing and shelter | 501(c)(3) | 1996 | $39,720 | $8.2 million | 2025-12 |
| Central Coast Veterans Helping Veterans | Public and societal benefit | 501(c)(3) | 2016 | $33,843 | $11,984 | 2025-09 |
| Central Coast Brewers Consortium | Community improvement and capacity building | 501(c)(6) | 2024 | $26,804 | $70,408 | 2025-12 |
| Slo Fire Bear Fund | Public safety, disaster preparedness and relief | 501(c)(3) | 2019 | $26,000 | $57,850 | 2025-12 |
| Central Coast Dahlia Society | Environment | 501(c)(3) | 2019 | $25,983 | $40,820 | 2025-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $23,664 | $27,399 | 2024-06 | |
| Womans Network of San Luis Obispo County | Community improvement and capacity building | 501(c)(6) | 2016 | $23,017 | $19,151 | 2025-05 |
| Jesse Rohde Educational Foundation | Education | 501(c)(3) | 2018 | $22,335 | $6,250 | 2025-12 |
| C-Court Inc | 501(c)(3) | 1995 | $17,500 | $171,344 | 2025-12 | |
| Sandlot Group of San Luis Obispo | Human services | 501(c)(3) | 2012 | $15,628 | $64,848 | 2024-12 |
| Schoolhouse Lane Apartments Inc | Housing and shelter | 501(c)(3) | 1997 | $15,000 | $208,337 | 2025-12 |
| Born To Love International | Human services | 501(c)(3) | 2017 | $12,000 | $3,062 | 2025-12 |
| Real Estate Foundation of San Luis Obispo County | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $9,815 | $407,463 | 2025-12 |
| Friday Night Live-San Luis Obispo County Chapter | Religion-related | 501(c)(3) | 1997 | $9,721 | $75,959 | 2025-06 |
| International Order of the Rainbow Girls Supreme Assembly | 501(c)(3) | 1972 | $6,948 | $18,534 | 2024-12 | |
| Pacific Tractor Pullers Association | 501(c)(4) | 1977 | $4,300 | $12,329 | 2025-12 | |
| San Luis Obispo Blues Society Inc | 501(c)(3) | 1990 | $3,797 | $10,236 | 2026-06 | |
| Phi Kappa Psi Alumni Corporation of the California Eta Chapter | Recreation and sports | 501(c)(7) | 2016 | $100 | $649,682 | 2025-12 |
| 805 Youth Lacrosse Association | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| 9-11 Americanthunder | Human services | 501(c)(3) | 2011 | $0 | $0 | 2024-12 |
| A Z Sinsheimer Family Memory Fund | 501(c)(3) | 1966 | $33,564 | 2024-12 | ||
| Active Church Inc | Religion-related | 501(c)(3) | 2017 | |||
| Aloha Piano Quartet | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Alpha Chi Sigma Fraternity Collegiate Chapter | 501(c)(3) | 1941 | $0 | $0 | 2025-12 | |
| Alpha Omega Collective Foundation | Public and societal benefit | 501(c)(3) | 2019 | $0 | $18,358 | 2025-12 |
| Alpha Sigma Phi Fraternity Inc | Education | 501(c)(7) | 1941 | $0 | $0 | 2025-06 |
| America Appreciates Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $0 | $0 | 2024-12 |
| American Association of University Women | Education | 501(c)(4) | 2010 | $0 | $0 | 2025-06 |
| American Legion Auxiliary | 501(c)(19) | 1946 | $0 | $0 | 2026-06 | |
| American Woodland Conservancy | Environment | 501(c)(4) | 2015 | $0 | $0 | 2024-12 |
| Anchored Calvary Chapel | 501(c)(3) | 1986 | ||||
| Apprentice & Journeyman TRG Trust Fund of So Ca PLMG HTG & Piping Indus | 501(c)(3) | 1959 | $0 | $0 | 2025-06 | |
| Art Always Reveals Truth | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Aspire Softball Academy | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Association of Fundraising Professionals | 501(c)(3) | 1987 | $0 | $0 | 2025-12 | |
| Association of Notre Dame Clubs Inc | 501(c)(3) | 1983 | $0 | $0 | 2025-06 | |
| Avila Beach Bird Sanctuary Inc | Animal-related | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Beta Theta Pi Fraternity | 501(c)(7) | 1967 | ||||
| Bloved Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $458,105 | 2025-12 | |
| Bodhi Path Buddhist Center of San Luis Obispo | Religion-related | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Breakthrough Ministry Incorported | Religion-related | 501(c)(3) | 2014 | |||
| CCRD Inc | Recreation and sports | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| CDF Slo County Fire Fighters Benevolent Association | 501(c)(3) | 1993 | $0 | $0 | 2024-12 | |
| California Association Parent Child Advocacy Inc | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| California Central Coast Pastel Society | Arts, culture and humanities | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| California Community Education Center Inc | Education | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| California Employer Advisory Council | 501(c)(6) | 1989 | $0 | $0 | 2024-06 | |
| California Grand Jurors Association | 501(c)(3) | 1999 | $0 | $0 | 2025-12 | |
| California Public Radio | 501(c)(3) | 1981 | $0 | $0 | 2024-06 | |
| California State Chaper Womens Council of Realtors | Community improvement and capacity building | 501(c)(6) | 2016 | $0 | $0 | 2025-12 |
| California State Foster Parent Association | 501(c)(3) | 1984 | $0 | $0 | 2024-12 | |
| Calvary Chapel San Luis Obispo | Religion-related | 501(c)(3) | 2022 | |||
| Camaldolese Hermits of America | 501(c)(3) | 1946 | 2025-12 | |||
| Carol and Warren Sinsheimer Foundation Inc | 501(c)(3) | 1998 | $82,418 | 2025-03 | ||
| Casa de Oracion Inc | Religion-related | 501(c)(3) | 2010 | |||
| Catholic Daughters of the Americas | 501(c)(3) | 1946 | ||||
| Center for River Restoration and Research | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $9,409 | 2024-12 | |
| Central Coast Chapter of California Association of Marriage & Family | 501(c)(6) | 1997 | $0 | $0 | 2025-12 | |
| Central Coast Chapter of the International Code Council | 501(c)(6) | 2014 | $0 | $0 | 2025-12 | |
| Central Coast Chinese Christian Church | Religion-related | 501(c)(3) | 1999 | |||
| Central Coast Classic Motorcycle Club Inc | Recreation and sports | 501(c)(7) | 2014 | $0 | $0 | 2025-12 |
| Central Coast Construction Trades | Public and societal benefit | 501(c)(3) | 2025 | |||
| Central Coast Dream Center | Food, agriculture and nutrition | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Central Coast Kidney Foundation | 501(c)(3) | 1992 | $0 | $0 | 2025-06 | |
| Central Coast Parkinson Support Group | Public safety, disaster preparedness and relief | 501(c)(3) | 1985 | $0 | $0 | 2025-12 |
| Central Coast Senior Bowling Club | Recreation and sports | 501(c)(7) | 2025 | $0 | $0 | 2026-03 |
| Central Coast Shakespear Festival | Arts, culture and humanities | 501(c)(3) | 1998 | $0 | $0 | 2025-09 |
| Central Coast Substitute Care for Children | 501(c)(3) | 1994 | ||||
| Central Coast Vegans | Education | 501(c)(3) | 2018 | $0 | $0 | 2023-09 |
| Central Coast Vintage Machinery Association | Arts, culture and humanities | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Central Coast Womens League | Community improvement and capacity building | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Central Pacific Ski Club | International, foreign affairs and national security | 501(c)(7) | 2019 | $0 | $0 | 2026-03 |
| Chabad Jewish Center of Slo | Religion-related | 501(c)(3) | 2022 | |||
| Chabad of S Luis Obispo | Religion-related | 501(c)(3) | 2013 | |||
| Chapel in the Park | Religion-related | 501(c)(3) | 2003 | |||
| Chinese Garden Slo | Recreation and sports | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Chris Jespersen Memorial Society for Children in Special Education | 501(c)(3) | 1965 | $0 | $0 | 2025-06 | |
| Christian Ministry Jesus Is the Way the Truth and the Life | Human services | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Church in San Luis Obispo | 501(c)(3) | 1990 | ||||
| Circle of Spiritual Enlightenment | Religion-related | 501(c)(3) | 2008 | |||
| Clock and Bow Service Corporation | Employment | 501(c)(3) | 2025 | |||
| Collective Good | 501(c)(3) | 2022 | $0 | $0 | 2025-12 | |
| College Matters | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Congregation Beth David of San Luis Obispo | Religion-related | 501(c)(3) | 2002 | |||
| Country Dance & Song Society Inc | 501(c)(3) | 1993 | $0 | $0 | 2025-05 | |
| Cryptic Masons of California | 501(c)(8) | 1972 | $0 | $0 | 2025-12 | |
| Cuesta Crankers Chapter Model A Ford Club of America | 501(c)(7) | 1983 | $0 | $0 | 2025-12 | |
| David & Diana Salmon Foundation | Human services | 501(c)(3) | 2022 | $1.5 million | 2025-12 | |
| De La Guerra Y Pacheco Chapter 1-5 E Clampus Vitus Inc | 501(c)(3) | 1992 | $0 | $0 | 2025-12 | |
| Dean Brown Leadership Foundation | Food, agriculture and nutrition | 501(c)(3) | 2010 | $0 | $1,347 | 2024-12 |
| Delight Foundation Inc | International, foreign affairs and national security | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Delta Gamma Fraternity | 501(c)(7) | 1970 | $0 | $0 | 2025-06 | |
| Demolay International 05371 | 501(c)(3) | 1996 | $0 | $0 | 2025-12 | |
| Disabled American Veterans | 501(c)(4) | 1942 | $0 | $0 | 2026-06 | |
| Distinguished Young Women of San Luis Obispo | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2023-12 |
| District 22 Committee | Mental health and crisis intervention | 501(c)(3) | 2026 | |||
| Earth Inspired | Environment | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Elder Warriors | Public and societal benefit | 501(c)(3) | 2016 | $29,332 | 2025-12 | |
| Elevate Christian Church | Religion-related | 501(c)(3) | 2015 | |||
| Eric Okerblom Foundation | Public safety, disaster preparedness and relief | 501(c)(3) | 2011 | $0 | $0 | 2024-12 |
| Family Court Awareness Month | Crime and legal-related | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Farm Bureau Grain Improvement Association Inc | 501(c)(5) | 1949 | $0 | $0 | 2025-12 | |
| Fast for Good | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | |||
| Femme Futures Foundation | Civil rights, social action and advocacy | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| First Baptist Church | 501(c)(3) | 1955 | ||||
| First Presbyterian Church of San Luis Obispo | 501(c)(3) | 1964 | 2013-12 | |||
| Firstfruits Farm Slo | Food, agriculture and nutrition | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Fractional Leadership Alliance Co | Community improvement and capacity building | 501(c)(6) | 2025 | $0 | $0 | 2025-12 |
| French Hospital Volunteer Guild Inc | 501(c)(3) | 1986 | $0 | $0 | 2025-12 | |
| Friends of the Bob Jones Trail | Recreation and sports | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Friends of the La Loma Adobe | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Gen U Slo | Youth development | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| General Association of Regular Baptist Churches | 501(c)(3) | 1971 | ||||
| General Conference of Seventh Day Adventist | 501(c)(3) | 1950 | ||||
| Grace Church Inc | 501(c)(3) | |||||
| Grant Funding Sponsorship Group Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $0 | $1 | 2025-12 |
| Gray Family Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2018 | $396,771 | 2024-12 | |
| Happy Hen Animal Sanctuary | Animal-related | 501(c)(3) | 2015 | $110,955 | 2024-12 | |
| Harold J Miossi Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $4.6 million | 2025-12 | |
| Hind Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $17.6 million | 2025-06 | |
| House of Prayer Church of God in CH Rist San Luis Obispo | Religion-related | 501(c)(3) | 2026 | |||
| Humble Pals Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $2,787 | 2025-12 | |
| Hydrofathom Corporation | Environment | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| India Outreach Teams Inc | International, foreign affairs and national security | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Infant Essentials | Human services | 501(c)(3) | 2013 | $0 | $0 | 2023-12 |
| Infinite Compassion Foundation USA | International, foreign affairs and national security | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Institute of Industrial Engineers Inc | 501(c)(3) | 1963 | $0 | $0 | 2026-03 | |
| International Mountain Bicycling Association | Recreation and sports | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Isc Outreach Inc | Youth development | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Islamic Society of San Luis Obispo County | Religion-related | 501(c)(3) | 2005 | |||
| JB Dewar Tractor Restoration Education Program | Youth development | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| James Anthony Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | |||
| Jeffery and Sasha Szytel Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $355,698 | 2025-12 | |
| Jespersen Ranch Mutual Water Company Inc | Public and societal benefit | 501(c)(12) | 2018 | $0 | $0 | 2025-12 |
| Jump for Joy Ministries | Religion-related | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Junior Roller Derby Association | Recreation and sports | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Kappa Alpha Theta Fraternity | 501(c)(7) | 1940 | ||||
| Kappa Kappa Gamma Fraternity Inc | 501(c)(7) | 1945 | ||||
| Kappa Sigma Fraternity | 501(c)(7) | 1940 | $0 | $0 | 2025-05 | |
| Knights Templar of the United States of America | Mutual and membership benefit | 501(c)(10) | 1964 | $0 | $0 | 2025-12 |
| Knights of Columbus | Mutual and membership benefit | 501(c)(8) | 1940 | |||
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Knights of Columbus | Mutual and membership benefit | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Ko Sport and Fitness Inc | Youth development | 501(c)(3) | 2026 | |||
| La Strong Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | |||
| Larry and Jo Shupnick Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $3 million | 2025-12 | |
| Latino Outreach Council Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Live Life Press On Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $2,852 | 2025-12 | |
| Logan-Wes Foundation | Community improvement and capacity building | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Los Robles Terrace Inc | 501(c)(3) | 1993 | $0 | $2.9 million | 2025-06 | |
| Marigold Collaborative | Education | 501(c)(3) | 2024 | $0 | $17,914 | 2024-12 |
| Martha Olson-Fernandez Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $406,904 | 2024-12 | |
| Mathtvcom | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Maxwellton Mutual Water Company | 501(c)(12) | 1990 | $0 | $0 | 2025-12 | |
| Mello Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $288,038 | 2025-12 | |
| Mend Fellowship | 501(c)(3) | 2025 | ||||
| Michael Vidaurri Ministries | Religion-related | 501(c)(3) | 2008 | |||
| Mission School Boosters Club | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Monterey Catholic Engaged Encounter Corporation | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Morning Son-Shine Christian Center | 501(c)(3) | 1978 | ||||
| Morro Bay White Caps | 501(c)(3) | 1987 | $0 | $0 | 2026-03 | |
| Mothers for Peace Action Committee | Environment | 501(c)(4) | 2002 | $0 | $0 | 2025-12 |
| Mount Carmel Lutheran Church | 501(c)(3) | 1987 | ||||
| Mountainbrook Community Church | 501(c)(3) | 1979 | 2013-12 | |||
| Museum of Aquarium and Pet History | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Mustang Swim and Dive Alumni Organi Zation Inc | Recreation and sports | 501(c)(3) | 2026 | |||
| Nace Central Coast | Mutual and membership benefit | 501(c)(6) | 2026 | |||
| Nasreen Iqbal Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $2.2 million | 2025-12 | |
| National Association of Women Business Owners Central Coast | Community improvement and capacity building | 501(c)(6) | 2019 | $0 | $0 | 2023-06 |
| Native Nuclear | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Neighbor Church | Religion-related | 501(c)(3) | 2022 | |||
| Neighborhoods North of Foothill | Community improvement and capacity building | 501(c)(3) | 2002 | $0 | $0 | 2024-12 |
| Neurocare Nonprofit | Mental health and crisis intervention | 501(c)(3) | 2023 | $0 | $0 | 2023-07 |
| New Hope Baptist Church | 501(c)(3) | 1975 | ||||
| Newcomers Club of San Luis Obispo California | Recreation and sports | 501(c)(7) | 2012 | $0 | $0 | 2026-06 |
| Nextgen Soccer Foundation | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Oasis Academy Inc | Human services | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Oceano Lifeguard Association Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Open Kitchen Slo | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Opera San Luis Obispo Inc | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $1 | 2025-12 |
| Our Sacred Planet | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $128,003 | 2025-12 | |
| Pacific Coast Youth Football League | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Pacific Light Opera Theatre | 501(c)(3) | 1993 | $0 | $0 | 2025-12 | |
| Pearls of Africa Childrens Fund | Youth development | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Phi Delta Theta California Nu | 501(c)(7) | 1940 | $0 | $0 | 2024-12 | |
| Phi Kappa Psi Fraternity | Education | 501(c)(7) | 2025 | |||
| Positive Ride Jams Inc | Human services | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Professional Association of City Employees | Employment | 501(c)(4) | 2014 | $0 | $0 | 2025-06 |
| Promoting Extracurricular Activities for Kids Inc | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Prothoma Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $0 | $1,210 | 2025-09 |
| Psi Chi the National Honor Society in Psychology | 501(c)(3) | 1957 | $0 | $0 | 2025-06 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1970 | $0 | $0 | 2025-06 | |
| Public Safety Development Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Rad Boosters | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2021-12 |
| Rancho Caballo Mutual Benefit Water Company | Public and societal benefit | 501(c)(12) | 2021 | $0 | $0 | 2024-12 |
| React Alliance | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Retired Active Men Incorporated | Recreation and sports | 501(c)(7) | 2004 | $0 | $0 | 2025-12 |
| Retired Faculty and Staff Association | Recreation and sports | 501(c)(7) | 2024 | $0 | $0 | 2025-12 |
| Rev Martin Luther King Jr High School Memorial Scholarship Fund | 501(c)(3) | 1968 | $0 | $0 | 2025-12 | |
| Revive Dive | Environment | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Rooted By Generations Foundation | Youth development | 501(c)(3) | 2026 | |||
| Rossi Foundation | 501(c)(3) | 1992 | $55,283 | 2024-11 | ||
| Route Pack Six Memorial Squadron | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Royal Arch Masons of California | 501(c)(8) | 1940 | $0 | $0 | 2026-02 | |
| Saint Anne Byzantine Catholic Church San Luis Obispo | 501(c)(3) | 1946 | ||||
| San Luis Chamber Orchestra | Arts, culture and humanities | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| San Luis Coastal Parent Information Network | Education | 501(c)(3) | 2025 | |||
| San Luis Distance Club | 501(c)(7) | 1974 | $0 | $0 | 2025-12 | |
| San Luis Highlanders Fencing Club | Recreation and sports | 501(c)(7) | 2026 | |||
| San Luis Obispo Agape Christian Fellowship | 501(c)(3) | 1983 | ||||
| San Luis Obispo Assembly of God | 501(c)(3) | 1964 | ||||
| San Luis Obispo Canterbury Foundation | 501(c)(3) | 1982 | $0 | $0 | 2025-12 | |
| San Luis Obispo Community Ice Rink | Recreation and sports | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| San Luis Obispo County Foundation for Agricultural Awareness Inc | Environment | 501(c)(3) | 1999 | $0 | $0 | 2025-08 |
| San Luis Obispo County Genealogical Society Inc | Arts, culture and humanities | 501(c)(3) | 1974 | $0 | $0 | 2025-05 |
| San Luis Obispo County Jazz Federation | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2026-06 |
| San Luis Obispo County Rowing Club | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-09 |
| San Luis Obispo Crime Stoppers Program Inc | 501(c)(3) | 1983 | $0 | $0 | 2026-03 | |
| San Luis Obispo Duplicate Bridge Club | 501(c)(7) | 1995 | $0 | $0 | 2025-12 | |
| San Luis Obispo Folk Music Society | Arts, culture and humanities | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| San Luis Obispo Foursquare Church | 501(c)(3) | 1949 | ||||
| San Luis Obispo Gem & Mineral Club | Science and technology | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| San Luis Obispo Grass Roots II Incorporated | Human services | 501(c)(3) | 2023 | $0 | $0 | 2025-06 |
| San Luis Obispo Guild Hall | Mutual and membership benefit | 501(c)(8) | 2016 | $0 | $0 | 2023-12 |
| San Luis Obispo Law Enforcement Assistance Foundation | Human services | 501(c)(3) | 2003 | $2.4 million | 2024-12 | |
| San Luis Obispo Meals On Wheels Inc | 501(c)(3) | 1974 | $0 | $0 | 2023-12 | |
| San Luis Obispo Medical Education and Research Foundation | 501(c)(3) | 1988 | $135,528 | 2025-06 | ||
| San Luis Obispo Model Railroad Association | Education | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| San Luis Obispo Nightwriters | Arts, culture and humanities | 501(c)(3) | 2017 | $0 | $0 | 2026-05 |
| San Luis Obispo Pickleball Club Inc | Education | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| San Luis Obispo Pilots Association | Community improvement and capacity building | 501(c)(6) | 2025 | $0 | $0 | 2024-12 |
| San Luis Obispo Unit 540 Acbl | 501(c)(7) | $0 | $0 | 2025-12 | ||
| San Luis Obispo Water Ski Club | Recreation and sports | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Save Our Swells Inc | Environment | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Shield of Faith Ministries | 501(c)(3) | 1996 | $0 | $0 | 2025-12 | |
| Sierra Vista Hospital Volunteer Auxiliary | Health care | 501(c)(3) | 1975 | $0 | $0 | 2024-06 |
| Sigma Phi Epsilon Fraternity Inc | 501(c)(7) | 1941 | $0 | $0 | 2025-06 | |
| Slo City Church | Religion-related | 501(c)(3) | 2019 | |||
| Slo County Colab Foundation | Environment | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Slo Cricket Club Inc | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Slo Flyers Inc | 501(c)(7) | 1992 | $0 | $0 | 2025-12 | |
| Slo Grassroots | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Slo Hockey | Recreation and sports | 501(c)(3) | 2026 | $22,718 | 2025-08 | |
| Slo Propulsion Technologies Foundation | Education | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Slo Riders | 501(c)(7) | 1996 | $0 | $0 | 2025-12 | |
| Slo Skiers Inc | 501(c)(7) | 1995 | $0 | $0 | 2026-08 | |
| Slo Town Track Club | Recreation and sports | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Slothrowers | Recreation and sports | 501(c)(4) | 2014 | $0 | $0 | 2025-12 |
| Son Care Foundation | 501(c)(3) | 1994 | $2 million | 2025-12 | ||
| Soroptimist International of the Americas Inc | Crime and legal-related | 501(c)(3) | 2002 | $0 | $0 | 2025-06 |
| Sowing Seed Ministries | 501(c)(3) | 1980 | ||||
| Spiritual Assembly of the Bahais of San Luis Obispo | 501(c)(3) | 1995 | ||||
| Sports and Fitness for Kids | Recreation and sports | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Squad Club Seven Forty Five | Human services | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| St Andrew Greek Orthodox Church | Religion-related | 501(c)(3) | 2022 | |||
| St Luke Baptist Church of San Luis Obispo | 501(c)(3) | 1984 | ||||
| St Stephens Episcopal Church | 501(c)(3) | 1982 | ||||
| Stoke the World Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Surfing for Hope Foundation | Human services | 501(c)(3) | 2014 | $138,767 | 2025-12 | |
| Sustained Excellence Alliance Corp | Mutual and membership benefit | 501(c)(3) | 2001 | $0 | $19,397 | 2024-12 |
| Tank Farm Business Park | Community improvement and capacity building | 501(c)(6) | 2026 | $0 | $0 | 2025-12 |
| Tau Beta Pi Association Inc | 501(c)(7) | 1972 | $0 | $0 | 2025-08 | |
| Teaching for Student Success Media | Education | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| Temple Ner Shalom of San Luis Obispo | 501(c)(3) | 1985 | ||||
| The Church of Christ of San Luis Obispo California | Religion-related | 501(c)(3) | 2001 | |||
| The Next Adventure | Human services | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Tigers Fight Cancer | Public and societal benefit | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1966 | $0 | $0 | 2025-12 | |
| Tri-County Dermatology Society | Diseases, disorders and medical disciplines | 501(c)(3) | 2004 | $0 | $0 | 2024-12 |
| Trinity Presbyterian Church | 501(c)(3) | 1974 | ||||
| Truhealth Foundation | Health care | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Unitarian Universalists San Luis Obispo | 501(c)(3) | 1969 | ||||
| United Church of Religious Science | 501(c)(3) | 1955 | ||||
| United Methodist Church and Its Affiliated Organizations | 501(c)(3) | 1971 | ||||
| University Christian Community | 501(c)(3) | 1971 | ||||
| Vista Church | Religion-related | 501(c)(3) | 2016 | |||
| Vy Foundation | Youth development | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| WC Baseball | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Western Society for Kinesiology & Wellness | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Wine for Water Inc | Human services | 501(c)(3) | 2009 | $0 | $0 | 2024-12 |
| Womans Shelter Endowment Trust | Human services | 501(c)(3) | 2026 | |||
| Worldwide Youth Evangelism Inc | Human services | 501(c)(3) | 2026 | |||
| Ypng | Philanthropy, voluntarism and grantmaking foundations | 501(c)(4) | 2013 | $0 | $0 | 2025-12 |
| Zeta Beta Tau Fraternity | 501(c)(7) | 1940 | $0 | $0 | 2026-05 | |
| Zion Lutheran Church | 501(c)(3) | 1941 |
By cause in SN Luis Obisp, CA
- Recreation and sports 40
- Education 38
- Arts, culture and humanities 31
- Human services 30
- Philanthropy, voluntarism and grantmaking foundations 28
- Religion-related 27
- Community improvement and capacity building 21
- Environment 17
- Housing and shelter 16
- Youth development 11
- Mutual and membership benefit 10
- Public and societal benefit 10
- Public safety, disaster preparedness and relief 7
- Food, agriculture and nutrition 7
- Animal-related 6
- International, foreign affairs and national security 6
- Employment 6
- Civil rights, social action and advocacy 5
- Health care 5
- Crime and legal-related 5
- Mental health and crisis intervention 4
- Diseases, disorders and medical disciplines 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.