Data / Nonprofits / California / San Marcos
Nonprofits in San Marcos, CA: 372 registered with the IRS
372 nonprofits are registered with the IRS in San Marcos, CA, 329 of them 501(c)(3) charities; the 121 that report revenue took in $330.5 million. The largest by revenue: North County Health Project Inc ($130.9 million), Gary and Mary West Senior Services Inc ($47.3 million), California State University San Marcos Corporation ($38.7 million). Most common causes: religion-related (50), education (49), human services (30).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| North County Health Project Inc | 501(c)(3) | 1973 | $130.9 million | $116 million | 2024-12 | |
| Gary and Mary West Senior Services Inc | Health care | 501(c)(3) | 2017 | $47.3 million | $17.6 million | 2024-12 |
| California State University San Marcos Corporation | Education | 501(c)(3) | 1991 | $38.7 million | $135.1 million | 2025-06 |
| Mountain Shadows Support Group | 501(c)(3) | 1993 | $21.3 million | $32 million | 2025-12 | |
| California State University San Marcos Foundation | Health care | 501(c)(3) | 2009 | $12.4 million | $72 million | 2025-06 |
| Casa de Amparo | Human services | 501(c)(3) | 1979 | $11.3 million | $20.5 million | 2025-06 |
| North County Community Services | Human services | 501(c)(3) | 1970 | $10.5 million | $4.9 million | 2025-06 |
| Mountain Shadows Ancillary Servicesinc | Health care | 501(c)(3) | 2009 | $7.4 million | $10.2 million | 2025-12 |
| Boys & Girls Club of San Marcos | 501(c)(3) | 1982 | $5.5 million | $5.6 million | 2025-06 | |
| Avid Behavioral Day Program Corp | Human services | 501(c)(3) | 2014 | $4.1 million | $2.5 million | 2025-12 |
| Saint Joseph Academy | Education | 501(c)(3) | 1946 | $3.8 million | $5.1 million | 2025-06 |
| Baypoint Preparatory Academy | Education | 501(c)(3) | 2017 | $3.3 million | $10.5 million | 2025-06 |
| Associated Students of California State University San Marcos | Education | 501(c)(3) | 1995 | $2.4 million | $3.9 million | 2025-06 |
| Palomar College Foundation | Education | 501(c)(3) | 1963 | $2.3 million | $34 million | 2025-12 |
| Socal Athletics Inc | Recreation and sports | 501(c)(3) | 2006 | $2 million | $303,549 | 2025-12 |
| FC Sol Soccer Club Inc | Recreation and sports | 501(c)(3) | 2014 | $1.4 million | $253,442 | 2025-03 |
| San Marcos Youth Soccer | Recreation and sports | 501(c)(3) | 2011 | $1.4 million | $748,240 | 2024-12 |
| Downstown Inc | Housing and shelter | 501(c)(3) | 2024 | $1.2 million | $1.5 million | 2022-12 |
| San Marcos Promise | Education | 501(c)(3) | 2014 | $1.2 million | $587,069 | 2025-06 |
| Wounded Warrior Homes Inc | Human services | 501(c)(3) | 2010 | $1.1 million | $1.2 million | 2025-06 |
| Calvary Online School | Education | 501(c)(3) | 2014 | $926,320 | $265,670 | 2025-06 |
| White Fields Inc | 501(c)(3) | 1956 | $889,756 | $170,035 | 2024-12 | |
| American Federation of Teachers | 501(c)(5) | 1967 | $790,617 | $1 million | 2025-06 | |
| Birth Choice of San Marcos | Civil rights, social action and advocacy | 501(c)(3) | 1988 | $767,678 | $1.3 million | 2024-12 |
| San Marcos Youth Baseball | Recreation and sports | 501(c)(3) | 2014 | $692,101 | $596,285 | 2025-08 |
| Grizzlies Booster Educational Foundation | Education | 501(c)(3) | 2017 | $689,130 | $510,133 | 2025-08 |
| The Legacy Homeschool Alliance | Education | 501(c)(3) | 2023 | $630,177 | $379,152 | 2026-06 |
| Doris A Howell Foundation for Womens Health Research Inc | 501(c)(3) | 1996 | $579,599 | $755,875 | 2025-12 | |
| San Marcos Boosters Club | 501(c)(3) | 1973 | $547,389 | $359,888 | 2024-12 | |
| Vida Joven de Mexico | 501(c)(3) | 1940 | $545,320 | $3 million | 2024-12 | |
| Lake San Marcos Security Patrol Association | 501(c)(4) | 1981 | $526,237 | $147,160 | 2025-12 | |
| San Diego North Economic Development Council | Community improvement and capacity building | 501(c)(6) | 2002 | $491,997 | $345,354 | 2024-12 |
| Omega House Corp of Kappa Alpha Theta | 501(c)(7) | 1989 | $438,618 | $1.5 million | 2025-08 | |
| Association of Business Trial Lawyers of Northern California | 501(c)(6) | 1992 | $434,970 | $500,487 | 2025-12 | |
| Blessed Feet Studios Inc | Religion-related | 501(c)(3) | 2024 | $433,022 | $133,371 | 2025-12 |
| Autism Health Inc | Education | 501(c)(3) | 2024 | $387,587 | $60,829 | 2025-12 |
| California Flower Growers & Shippers | 501(c)(6) | 1974 | $381,837 | $3.6 million | 2024-12 | |
| San Marcos Chamber of Commerce | 501(c)(6) | 1967 | $376,083 | $97,428 | 2025-12 | |
| Bodhi Hill Buddhist Center - Chua Vien Quang | Religion-related | 501(c)(3) | 2016 | $364,807 | $2.5 million | 2024-12 |
| Way Enterprises Inc | Education | 501(c)(3) | 2025 | $354,246 | $69,524 | 2025-06 |
| National Housing Corporation | Housing and shelter | 501(c)(3) | 2006 | $351,396 | $1.6 million | 2024-12 |
| Kuwasha USA | International, foreign affairs and national security | 501(c)(3) | 2023 | $325,764 | $228,463 | 2025-12 |
| Hope for Healers | Mental health and crisis intervention | 501(c)(3) | 2022 | $325,060 | $13,568 | 2025-12 |
| Luminary Arts Corporation | Arts, culture and humanities | 501(c)(3) | 2015 | $318,942 | $145,247 | 2025-12 |
| American Federation of Teachers | 501(c)(5) | 1945 | $306,400 | $346,082 | 2025-06 | |
| San Diego Fire Department Sports Club | 501(c)(4) | 1991 | $303,122 | $29,032 | 2025-12 | |
| San Elijo Elementary School Parent Teacher Organization | Education | 501(c)(3) | 2016 | $278,305 | $281,198 | 2025-06 |
| California Teachers Association | 501(c)(5) | 1976 | $275,656 | $82,358 | 2025-08 | |
| Mountain Shadows Foundation | Human services | 501(c)(3) | 2004 | $260,172 | $2.3 million | 2025-12 |
| Friends of Richland | 501(c)(3) | 1972 | $244,229 | $268,262 | 2025-06 | |
| Pop Warner Little Scholars Inc | 501(c)(3) | 1994 | $233,674 | $54,327 | 2025-12 | |
| San Marcos Girls Softball League Inc | 501(c)(3) | 1978 | $233,270 | $70,786 | 2025-07 | |
| Discovery Elementary School Parent Teacher Organization | Education | 501(c)(3) | 1997 | $225,371 | $236,422 | 2025-06 |
| San Marcos High School Music Boosters | Education | 501(c)(3) | 2001 | $213,906 | $108,058 | 2025-06 |
| Cardinal Alliance Parent Organization | Education | 501(c)(3) | 2020 | $205,027 | $100,152 | 2025-06 |
| Developmental Services Network | Human services | 501(c)(3) | 2001 | $194,955 | $53,597 | 2025-12 |
| Papa System Inc | Human services | 501(c)(3) | 2014 | $194,696 | $60,258 | 2025-12 |
| Memorial Day Flowers Foundation | Arts, culture and humanities | 501(c)(3) | 2014 | $189,572 | $112,520 | 2025-12 |
| Double Peak Parent Teacher Organization | Education | 501(c)(3) | 2016 | $181,716 | $150,264 | 2025-07 |
| Keepin It Rural Fund Inc | Environment | 501(c)(3) | 2022 | $178,008 | $606,390 | 2024-12 |
| Kast Ministry Tours | Religion-related | 501(c)(3) | 2014 | $173,010 | $22,940 | 2025-12 |
| Paloma School Parent Teacher Organization | 501(c)(3) | 1992 | $172,781 | $215,133 | 2025-06 | |
| Isaiahs Stump | Religion-related | 501(c)(3) | 2005 | $158,985 | $183,008 | 2024-12 |
| San Marcos Youth Basketball | Recreation and sports | 501(c)(3) | 2023 | $157,301 | $14,551 | 2025-04 |
| San Marcos Prevention Coalition | Education | 501(c)(3) | 2014 | $155,000 | $1 | 2025-12 |
| Lake San Marcos Community Association | 501(c)(4) | 1975 | $150,413 | $83,886 | 2025-09 | |
| San Elijo Middle School Pto | Education | 501(c)(3) | 2015 | $149,488 | $149,889 | 2026-06 |
| Sun Park Lake San Marcos Unit No 1 | 501(c)(7) | 1966 | $139,078 | $40,727 | 2025-12 | |
| San Marcos Community Youth Boosters | Youth development | 501(c)(3) | 2002 | $133,467 | $47,829 | 2025-06 |
| Lake San Marcos Mall IV Property Owners Association | 501(c)(7) | 1987 | $133,202 | $133,596 | 2025-06 | |
| Lvdi International Incorporated | Human services | 501(c)(3) | 2016 | $121,372 | $383,833 | 2025-12 |
| Deer Springs Oaks Inc | 501(c)(7) | 1961 | $120,207 | $107,693 | 2025-12 | |
| Community Advancement Development Corporation | Housing and shelter | 501(c)(3) | 2014 | $116,919 | $21,599 | 2025-12 |
| South West Amateur Lacrosse Association | Recreation and sports | 501(c)(3) | 2017 | $115,323 | $50,304 | 2025-12 |
| Shooting Stars Special Needs Group Inc | Human services | 501(c)(3) | 2025 | $113,515 | $54,786 | 2025-12 |
| Universidad Popular | Education | 501(c)(3) | 2023 | $113,447 | $25,000 | 2025-12 |
| Winds of Harvest Church | Religion-related | 501(c)(3) | 2016 | $113,442 | $208,608 | 2020-12 |
| International House of Praise Evangelical Mission | Religion-related | 501(c)(3) | 2019 | $109,186 | $188,580 | 2025-12 |
| Uganda Childrens Sponsorship Program | Mental health and crisis intervention | 501(c)(3) | 2000 | $107,795 | $122,740 | 2024-12 |
| Alcor Agg Inc | Recreation and sports | 501(c)(3) | 2024 | $105,048 | $11,256 | 2025-12 |
| San Marcos High School Cheer Boosters | Recreation and sports | 501(c)(3) | 2019 | $104,689 | $24,562 | 2026-04 |
| Breaker Ministries | Religion-related | 501(c)(3) | 2018 | $104,017 | $9,217 | 2025-12 |
| Iglesia Del Senor Jesucristo En Las Americas | 501(c)(3) | 2010 | $102,430 | $106,096 | 2025-12 | |
| San Elijo Middle School Band Booster Club | Education | 501(c)(3) | 2005 | $98,655 | $22,084 | 2025-07 |
| Lake San Marcos Mall II Property Owners Association | 501(c)(7) | 1977 | $94,727 | $62,111 | 2025-12 | |
| Straight From the Heart Inc | Human services | 501(c)(3) | 2000 | $91,260 | $123,167 | 2025-12 |
| David S Tent International | Religion-related | 501(c)(3) | 2020 | $90,988 | $0 | 2024-10 |
| Knob Hill Pto | Education | 501(c)(3) | 1995 | $87,569 | $123,586 | 2025-06 |
| Beat the Cycle Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $80,041 | $71,321 | 2025-12 |
| San Marcos Community Foundation | 501(c)(3) | 1991 | $79,939 | $1.4 million | 2025-06 | |
| Veterans Green Projects Initiative Foundation | Employment | 501(c)(3) | 2015 | $79,349 | $480 | 2025-12 |
| Gamma Phi Beta Sorority Inc | 501(c)(7) | 1940 | $78,522 | $32,110 | 2025-07 | |
| Friends of San Marcos Parks and Recreation | Recreation and sports | 501(c)(3) | 2014 | $73,308 | $114,618 | 2025-12 |
| Iglesia de Cristo El Mejor Vino Inc | Religion-related | 501(c)(3) | 2012 | $72,848 | $45,177 | 2024-12 |
| National Association of Neonatal Nurses | 501(c)(6) | 1989 | $70,646 | $41,193 | 2026-01 | |
| Sigma Chi Fraternity | 501(c)(7) | 1937 | $62,881 | $12,074 | 2025-08 | |
| San Marcos Elementary Pto | Education | 501(c)(3) | 2022 | $62,663 | $36,773 | 2023-06 |
| Lake San Marcos Kiwanis Club Foundation Inc | 501(c)(3) | 1993 | $59,674 | $126,648 | 2025-09 | |
| Osho Niranjana | Human services | 501(c)(3) | 2014 | $57,926 | $170,524 | 2024-12 |
| Healing Odyssey Inc | Health care | 501(c)(3) | 2015 | $56,376 | $76,621 | 2025-12 |
| Barakat Caravan | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $55,378 | $55,378 | 2025-12 |
| Panorama Teen & Family Resource Center | Public and societal benefit | 501(c)(3) | 2023 | $55,253 | $21,831 | 2025-12 |
| Veterans of Foreign Wars Department of California | 501(c)(19) | 1958 | $53,866 | $264,496 | 2025-06 | |
| Diaspora Burji Community Organization | International, foreign affairs and national security | 501(c)(3) | 2015 | $49,250 | $7,934 | 2025-12 |
| Summit for Stem Cell Foundation | Health care | 501(c)(3) | 2017 | $48,496 | $132,237 | 2025-12 |
| Twin Oaks Elementary P T O | Education | 501(c)(3) | 2000 | $44,418 | $53,725 | 2025-06 |
| San Francisco Region Social Security Management Association | 501(c)(5) | 1971 | $43,233 | $109,580 | 2025-09 | |
| San Marcos Rotary Club Foundation | 501(c)(3) | 1991 | $34,613 | $46,131 | 2025-06 | |
| San Marcos Basketball | Recreation and sports | 501(c)(3) | 2023 | $31,206 | $2,435 | 2025-12 |
| Rotary International | 501(c)(4) | 1942 | $27,866 | $68,730 | 2025-06 | |
| Rotary International | 501(c)(4) | 1969 | $26,472 | $22,404 | 2025-06 | |
| Butterfly Farms | Science and technology | 501(c)(3) | 2014 | $24,886 | $16,090 | 2025-12 |
| San Marcos Middle School Parent Club | Education | 501(c)(3) | 1996 | $21,209 | $17,778 | 2025-06 |
| San Elijo Hills Fire Safe Council Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2025 | $19,914 | $13,555 | 2025-12 |
| San Marcos High School Pto | Education | 501(c)(3) | 2003 | $19,478 | $79,028 | 2025-06 |
| Mission Hills High School Parent Teacher Organization | Education | 501(c)(3) | 2025 | $15,999 | $31,342 | 2025-07 |
| Helping Others More Efficiently Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $8,375 | $212,678 | 2024-12 |
| Hello Languages | Arts, culture and humanities | 501(c)(3) | 2022 | $6,500 | $1 | 2025-12 |
| Cal Tau Alumni Volunteer Corporation of Sigma Phi Epsilon | 501(c)(7) | 2022 | $4,140 | $8,566 | 2025-06 | |
| Miss California Extraordinaire | Human services | 501(c)(3) | 2023 | $3,375 | $221 | 2024-12 |
| 47 Ice House | Mental health and crisis intervention | 501(c)(3) | 2025 | |||
| 4pov - 4 Points of View | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | |||
| A Voice Can Save A Life | Mental health and crisis intervention | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Abandoned Innocence International | Mental health and crisis intervention | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Advocates Christian Ministries Inc | 501(c)(3) | 1992 | ||||
| Alef Center | Religion-related | 501(c)(3) | 2006 | |||
| Alef Hebrew School | Religion-related | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| Alexander and Eva Nemeth Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $48,580 | 2025-12 | |
| Alpha Sigma Phi Fraternity Inc | Education | 501(c)(7) | 1941 | $0 | $0 | 2025-06 |
| Angela Spence Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $0 | $0 | 2023-12 |
| Anglican Church of the Resurrection | Religion-related | 501(c)(3) | 2007 | |||
| Annie and Ronald F Bennett Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $604,903 | 2024-12 | |
| Ascending Community Services | Human services | 501(c)(3) | 2024 | |||
| Associated Students of Palomar College | 501(c)(3) | 1949 | $0 | $0 | 2025-06 | |
| Azadi Healing | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Barca Global Inc | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Barracudas Booster Club | Recreation and sports | 501(c)(3) | 2016 | $0 | $0 | 2025-08 |
| Bolton Foundation Inc | Human services | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Brewcycling Collaborative Inc | Environment | 501(c)(3) | 2023 | $0 | $0 | 2025-06 |
| Budo Centre Inc | Youth development | 501(c)(3) | 2010 | $0 | $0 | 2024-12 |
| Buhay Uunlad Kalusugan Alalayan Mga Seniors of San Diego | Public and societal benefit | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| C3 Dugout Fund Inc | Recreation and sports | 501(c)(3) | 2025 | |||
| California Association of Labor Relations Officers Inc - Calro | Human services | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| California Association of Transaction Coordinators Inc | Community improvement and capacity building | 501(c)(6) | 2024 | $0 | $0 | 2024-12 |
| California Border Association of USA Boxing Inc | Youth development | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| California Federation of Womens Clubs | 501(c)(3) | 1998 | $0 | $0 | 2024-01 | |
| California Retired Teachers Association | 501(c)(4) | 1972 | $0 | $0 | 2025-06 | |
| California Teachers Association | Employment | 501(c)(5) | 2021 | $0 | $0 | 2025-08 |
| Capalina Mobile Home Owners Association | Recreation and sports | 501(c)(7) | 2000 | $0 | $0 | 2025-12 |
| Carpe D I E M Outreach Inc | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Celebrating Holidays | Religion-related | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Charity Max | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Children Arts & More | Education | 501(c)(3) | 2022 | $1 | 2024-12 | |
| Christian Church of Faith | 501(c)(3) | 1981 | ||||
| Christou Christian Fellowship | 501(c)(3) | 1991 | ||||
| Christward Ministry | 501(c)(3) | 1942 | ||||
| Church in San Marcos Inc | Religion-related | 501(c)(3) | 2013 | |||
| Church of the Earth & Sky | Religion-related | 501(c)(3) | 1999 | |||
| Church of the Hills | Religion-related | 501(c)(3) | 2005 | |||
| Coming King Ministry | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Community Spiritualist Church | Religion-related | 501(c)(3) | 2008 | |||
| Cove Foundation | Community improvement and capacity building | 501(c)(3) | 2025 | |||
| Crossroads Christian Reformed Church | Religion-related | 501(c)(3) | 1999 | |||
| David T and Dorris E Staples Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $5.1 million | 2024-12 | |
| Delta Sigma Theta Sorority Inc | 501(c)(7) | 1952 | $0 | $0 | 2025-12 | |
| Diabetes Sports Project Foundation | 501(c)(3) | 2016 | $0 | $0 | 2025-12 | |
| Discover Church | 501(c)(3) | 1949 | ||||
| Doing Exceptional Deeds | Youth development | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Double Peak Music Booster Club | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-08 |
| Drawing Across the Lines Inc | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Drug-Free Campus Creek Coalition | Education | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| El Pan de Vida Ministries Inc | Religion-related | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Electric Vehicle Learning Center | Education | 501(c)(3) | 2019 | $0 | $93,562 | 2024-12 |
| Embroiderers Guild of America Inc | 501(c)(3) | 1976 | $0 | $0 | 2025-12 | |
| Emma Mary Deland Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $3.9 million | 2007-12 | |
| Empower Me Up Inc | Crime and legal-related | 501(c)(3) | 2015 | $0 | $1 | 2025-01 |
| Empowered Guatemala | Education | 501(c)(3) | 2025 | $0 | $0 | 2026-05 |
| Encuentros Leadership of Northernsan Diego County Inc | Youth development | 501(c)(3) | 2007 | $0 | $0 | 2024-12 |
| Erickson Foundation | Human services | 501(c)(3) | 2016 | $4.4 million | 2025-12 | |
| Etherian Religious Society of Universal Brotherhood | 501(c)(3) | 1968 | ||||
| Ethos Ministry Inc | Religion-related | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Evans Foundation for Molecularmedicine | Diseases, disorders and medical disciplines | 501(c)(3) | 2009 | $2.3 million | 2024-12 | |
| Everyones Welcome | Youth development | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| Evoke Hope | Environment | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Faces Missions | International, foreign affairs and national security | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Faith Friends | Human services | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Fast Experience | Recreation and sports | 501(c)(3) | 2024 | |||
| Father Peyri Assembly Fourth Degree Knights of Columbus | Mutual and membership benefit | 501(c)(8) | 2014 | $0 | $0 | 2026-06 |
| Fathers House Inc | Religion-related | 501(c)(3) | 2010 | |||
| Fellowship of Saint Mark | Religion-related | 501(c)(3) | 2016 | |||
| Fireplace Ministries | Religion-related | 501(c)(3) | 2023 | |||
| First Celtic Wiccan Church | Religion-related | 501(c)(3) | 1999 | |||
| First Intl Sacrifice Valley Catholic Movement Modesta Inc USA | Human services | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Fischer Ritchey Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $34,274 | 2025-09 | |
| For the Kids | Diseases, disorders and medical disciplines | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Friends of San Marcos Preserves and Trails | Environment | 501(c)(3) | 2025 | |||
| Friends of the San Marcos Library | 501(c)(3) | 1982 | $0 | $0 | 2025-12 | |
| Gayelee Reynolds Coaching | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Gideon Evangelical Foundation Inc | Human services | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Glass Slipper Initiative | Community improvement and capacity building | 501(c)(3) | 2023 | |||
| Global Initiative for Christian Soulwork | Religion-related | 501(c)(3) | 2026 | |||
| Glory Mountain Inc | Religion-related | 501(c)(3) | 2003 | |||
| Goggles for Good Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Green Oak Ranch | Mental health and crisis intervention | 501(c)(3) | 1998 | $2 million | 2025-12 | |
| Grow Strong | International, foreign affairs and national security | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Grow the San Diego Way | 501(c)(3) | 2021 | $0 | $0 | 2024-12 | |
| Hall Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $2.5 million | 2024-12 | |
| Harley Owners Group of Oceanside Inc | Recreation and sports | 501(c)(7) | 1999 | $0 | $0 | 2025-12 |
| Harvest Orthodox Presbyterian Church | 501(c)(3) | 1968 | ||||
| Healing Well & Living Free Foundation | Crime and legal-related | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Hedwig S Johannsen Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $2.2 million | 2025-12 | |
| Hidden Valley Aiki Kai Inc | Recreation and sports | 501(c)(3) | 1995 | $0 | $0 | 2025-12 |
| Hidden Valley Zen Center | 501(c)(3) | 1969 | 2023-12 | |||
| Hills Community Church San Marcos | Religion-related | 501(c)(3) | 2023 | |||
| His Hands and Feet Christian Ministry | Religion-related | 501(c)(3) | 2014 | |||
| Horse Heritage Conservancy | Animal-related | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Housing As A Platform Inc | Environment | 501(c)(3) | 2020 | $0 | $23,738 | 2025-12 |
| Hwoporg | Crime and legal-related | 501(c)(3) | 2019 | $1,913 | 2025-12 | |
| Iglesia Camino Al Cielo Christian Reformed Church | 501(c)(3) | 1975 | ||||
| Iglesia Gran Aposento de La Iglesia Cristiana Interdenominacional Inc | Religion-related | 501(c)(3) | 2020 | |||
| Iglesia Pentecostes Manantiales En El Desierto Inc | Religion-related | 501(c)(3) | 2016 | |||
| Ignition Outreach Ministries | Religion-related | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Iism Org | 501(c)(3) | 2022 | $2,040 | 2025-12 | ||
| Informed Action Harm Reduction | Health care | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| International Association of Lions Clubs | 501(c)(4) | 1969 | $0 | $0 | 2025-06 | |
| International Church of the Four Square Gospel | 501(c)(3) | 1949 | ||||
| Irish Dance and Cultural Society of San Diego | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Jaliscience Folkloric Academy | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| James R Brown Ministries Incorporated | 501(c)(3) | 1982 | ||||
| Johnston Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $237,787 | 2025-12 | |
| Joseph H Pendleton Youth Leadership Conference Inc | Public and societal benefit | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Joy in the Camp Ministries | Religion-related | 501(c)(3) | 2005 | $0 | $0 | 2026-06 |
| K9 Connection Pet Re Homing and Adoption Inc | Animal-related | 501(c)(3) | 2021 | $497 | 2025-12 | |
| KLAMAN&CO | Arts, culture and humanities | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Kendall Bug Mission Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 | |
| King Husky Coffee | Animal-related | 501(c)(3) | 2026 | $0 | $0 | 2026-07 |
| Kiwanis International Inc | 501(c)(4) | 1968 | $0 | $0 | 2025-09 | |
| Knights FHC | Recreation and sports | 501(c)(3) | 2025 | |||
| Knights Flag Football Club | Recreation and sports | 501(c)(3) | 2026 | |||
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-06 | |
| Lake Community Lighted Beacon | Public and societal benefit | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Lake San Marcos Mall I Property Owners Association | 501(c)(7) | 1990 | $0 | $0 | 2026-04 | |
| Life Mission Church | Religion-related | 501(c)(3) | 2014 | |||
| Life Raft Ministries | Religion-related | 501(c)(3) | 2009 | $0 | $0 | 2023-12 |
| Life Saver Place Inc | Human services | 501(c)(3) | 2022 | $0 | $1 | 2025-12 |
| Linaje Escogido Principe de Paz 2 Ad | 501(c)(3) | 1964 | ||||
| Linnie Cooper Foundation | 501(c)(3) | 2023 | $881,364 | 2025-09 | ||
| Lions Den Cat Sanctuary | Animal-related | 501(c)(3) | 2026 | |||
| Living Sober Homes | Mental health and crisis intervention | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| MHHS Grizzly Theatre Boosters | Education | 501(c)(3) | 2019 | $0 | $0 | 2023-06 |
| MNC Baja Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Manna World Ministries Inc | 501(c)(3) | 1983 | ||||
| Maranatha Chapel San Marcos Inc | Religion-related | 501(c)(3) | 2006 | |||
| Marketing Experts and Faculty Alliance | Education | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Meadowlark Community Church | 501(c)(3) | 1993 | ||||
| Mental Foundation | Diseases, disorders and medical disciplines | 501(c)(3) | 2022 | $0 | $0 | 2025-07 |
| Microactivist | 501(c)(3) | 2017 | $0 | $0 | 2025-12 | |
| Military Order of the World Wars Inc | 501(c)(19) | 1955 | $0 | $0 | 2023-06 | |
| Mission Hills Church Inc | Religion-related | 501(c)(3) | 2007 | |||
| Monarch 246 | Religion-related | 501(c)(3) | 2024 | $0 | $0 | 2026-01 |
| Monster Racing Team Inc | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Movement Church | Religion-related | 501(c)(3) | 2003 | |||
| Nanas Lil Helpers | Human services | 501(c)(3) | 2026 | |||
| Nation Imagined | Youth development | 501(c)(3) | 2022 | $0 | $0 | 2025-06 |
| National Society of the Daughters of the American Revolution | 501(c)(3) | 1949 | $0 | $0 | 2026-05 | |
| National Spiritual Assembly of the Bahais of the Us | 501(c)(3) | 1965 | ||||
| New Creation Christian Assembly | 501(c)(3) | 1993 | ||||
| New Hope Charitable Foundation | Youth development | 501(c)(3) | 2002 | $5.9 million | 2025-06 | |
| Next Wave Soccer Foundation | Recreation and sports | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| No Fear Regulators Inc | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| North County Baptist Church | 501(c)(3) | 1991 | ||||
| North County Civil Engineers and Land Surveyors Association | 501(c)(6) | 1983 | $0 | $0 | 2025-09 | |
| Oceanwavers Square Dance Club | Arts, culture and humanities | 501(c)(7) | 2014 | $0 | $0 | 2024-12 |
| Opera A La Carte San Diego Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Original Boxing Foundation | Recreation and sports | 501(c)(3) | 2023 | |||
| Pacific Belles Chorus | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2026-06 |
| Pacific Girls Hockey Inc | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Palomar Community College District | 501(c)(3) | 1977 | ||||
| Palomar Estates East Residents Association | Housing and shelter | 501(c)(4) | 2016 | $0 | $0 | 2025-12 |
| Palomar Korean Church | Religion-related | 501(c)(3) | 2001 | |||
| Palomar Radio Control Flying Club | 501(c)(7) | 1989 | $0 | $0 | 2024-12 | |
| Palomar Wrestling Legacy and Leader Ship Association | Education | 501(c)(3) | 2026 | |||
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $0 | $0 | 2025-06 |
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $0 | $0 | 2025-06 |
| Pastor of St Mark Catholic Parish in San Marcos Ca A Corp Sole | 501(c)(3) | 1946 | ||||
| Personal Life Skills Foundation | Education | 501(c)(3) | 2022 | $1,587 | 2025-12 | |
| Petals for Pups Foundation | Animal-related | 501(c)(3) | 2025 | |||
| Piano Fitness | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Platos Peach Learning Corporation | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Polonez San Diego Inc | Arts, culture and humanities | 501(c)(3) | 2024 | |||
| Positive Future Impact Foundation | Human services | 501(c)(3) | 2024 | $218,415 | 2025-12 | |
| Poway Veterans Organization | Public and societal benefit | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Psi Chi the National Honor Society in Psychology | 501(c)(3) | 1957 | $0 | $0 | 2025-06 | |
| Randy Kay Ministries | Religion-related | 501(c)(3) | 2024 | 2025-12 | ||
| Rcfe Disaster Preparedness Task Force | Education | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Redeeming Roots Inc | Youth development | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| Rescue Paws | Animal-related | 501(c)(3) | 2024 | |||
| Restored Ministries | Religion-related | 501(c)(3) | 2026 | |||
| Richland Heritage Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Rise Church of San Marcos Inc | 501(c)(3) | 1969 | ||||
| Rise Global Health Initiative | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| River of Courage | Human services | 501(c)(3) | 2026 | |||
| Rotary International | 501(c)(4) | 1968 | $0 | $0 | 2025-06 | |
| SM Knights Lacrosse | Youth development | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| SMHS Robotics Booster Club | Education | 501(c)(3) | 2025 | |||
| Saint Augustine of Canterbury | 501(c)(3) | 1946 | ||||
| Saint Mark Catholic Parish in San Marcos Ca Real Prop Support Corp | Religion-related | 501(c)(3) | 2019 | |||
| San Diego Chinese Christian Chorale Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| San Diego Hmong Heritage Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| San Elijo Hills Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $0 | $215,812 | 2025-12 |
| San Joaquin Valley Childrens Health Association | 501(c)(3) | 1955 | $250,437 | 2025-09 | ||
| San Marcos Christian Schools | Education | 501(c)(3) | 2025 | |||
| San Marcos Church of Religious Science & Center for Positive Living | 501(c)(3) | 1950 | ||||
| San Marcos Educational Foundation Inc | Education | 501(c)(3) | 2025 | $193,625 | 2024-06 | |
| San Marcos Hispanic Foursquare Church | 501(c)(3) | 1949 | ||||
| San Marcos Lions Club Foundation | Human services | 501(c)(3) | 1999 | $0 | $0 | 2025-06 |
| San Marcos Lutheran Church | 501(c)(3) | 1961 | ||||
| San Marcos Prof Firefighters Association Local 4184 | Employment | 501(c)(5) | 2023 | $0 | $0 | 2025-12 |
| San Marcos Professional Firefighters Association | Public safety, disaster preparedness and relief | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Sanskriti San Marcos | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Saving Shelter Pets of California Inc | Animal-related | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Sdfvoa | Recreation and sports | 501(c)(3) | 2025 | |||
| Sigma Theta Tau International | 501(c)(3) | 1954 | $0 | $0 | 2025-06 | |
| Soluna Sanctuary Inc | Animal-related | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Southern California American Saddlebred Horse Association | Youth development | 501(c)(3) | 1993 | $0 | $0 | 2025-12 |
| Spiritual Assembly of the Bahais of San Marcos | 501(c)(3) | 1995 | ||||
| St Bridgets Convent Past Pupils Association of Southern California | Public and societal benefit | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| St Petka Serbian Orthodox Church | 501(c)(3) | 1956 | ||||
| Stone Gate Bible Fellowship | Religion-related | 501(c)(3) | 2003 | |||
| Superatio Inc | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Sustainable Stitch Lab | Environment | 501(c)(3) | 2026 | |||
| Sweet Adelines International | 501(c)(3) | 1955 | $0 | $0 | 2026-04 | |
| Tabernaculo Piedra de Corona | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Team Redlands | Recreation and sports | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Telangana Association of Greater San Diego Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Temple Etz Rimon Inc | Religion-related | 501(c)(3) | 2001 | |||
| Templo Fuente de Agua Viva Inc | Religion-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| The GPCR Institute | Medical research | 501(c)(3) | 2015 | $0 | $153,616 | 2025-12 |
| The George James Boehmler Foundation | Education | 501(c)(3) | 2026 | |||
| The Lake Church | 501(c)(3) | 1967 | ||||
| The New Jerusalem Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $2.4 million | 2024-12 | |
| The Uncles | Public and societal benefit | 501(c)(3) | 2023 | $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) | 1945 | $0 | $0 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2023-12 | |
| Toastmasters International | 501(c)(3) | 1966 | $0 | $0 | 2025-12 | |
| Trachs and Tubes Foundation Inc | Health care | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Trail Therapy Off Road Inc | Human services | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Tricity Pantry | Food, agriculture and nutrition | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| University of Saint Katherine | Education | 501(c)(3) | 2015 | $0 | $0 | 2024-06 |
| Unlocked Inc | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Uplift Adaptive Sports | Recreation and sports | 501(c)(3) | 2026 | |||
| VII Foundation | Human services | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Vera Maksimov Ministery International Inc | Religion-related | 501(c)(3) | 2008 | |||
| Veterans Empowered | Housing and shelter | 501(c)(3) | 2025 | |||
| Veterans Transition Support | Employment | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Veterans of Foreign Wars of the United States Auxiliary | Public and societal benefit | 501(c)(19) | 2000 | $0 | $0 | 2026-06 |
| Victory Daycare Corp | Human services | 501(c)(3) | 2024 | |||
| Voice for Heroes | Public and societal benefit | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Walkwithjoseph | Religion-related | 501(c)(3) | 2025 | |||
| Wellness Association 4 Teen Elderly Armed Force Veteran Medical Specia | Food, agriculture and nutrition | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Williams Foundation | Arts, culture and humanities | 501(c)(3) | 2007 | $324,261 | 2025-12 | |
| Women in Business Collective | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Woodland Park Bible Church | 501(c)(3) | 1976 | ||||
| Woodland Park Middle School Music Booster Club | Education | 501(c)(3) | 1999 | $0 | $0 | 2025-06 |
| Woodland Park Middle School Parent Club | Education | 501(c)(3) | 2016 | $0 | $0 | 2025-06 |
| Word of Life World Outreach Center Inc | 501(c)(3) | 1980 | ||||
| World War II Experience A Non Profit Educational Organization | Arts, culture and humanities | 501(c)(3) | 2010 | $0 | $0 | 2025-06 |
| Xcelerated Archery Training | Recreation and sports | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Yraceburu Earthwisdom | Religion-related | 501(c)(3) | 2014 | |||
| San Marcos Middle School Band Booster Club Inc | Education | 501(c)(3) | 2002 | $-1,762 | $37,449 | 2026-06 |
By cause in San Marcos, CA
- Religion-related 50
- Education 49
- Human services 30
- Recreation and sports 26
- Philanthropy, voluntarism and grantmaking foundations 20
- Arts, culture and humanities 19
- Youth development 13
- Public and societal benefit 9
- Animal-related 8
- Health care 7
- Mental health and crisis intervention 7
- Environment 6
- Housing and shelter 5
- International, foreign affairs and national security 4
- Community improvement and capacity building 4
- Employment 4
- Diseases, disorders and medical disciplines 3
- Public safety, disaster preparedness and relief 3
- Crime and legal-related 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.