Data / Nonprofits / California / Los Osos
Nonprofits in Los Osos, CA: 71 registered with the IRS
71 nonprofits are registered with the IRS in Los Osos, CA, 59 of them 501(c)(3) charities; the 18 that report revenue took in $7.7 million. The largest by revenue: Woodlands Mutual Water Company of San Luis Obispo County ($1.9 million), Central Coast Waldorf School ($1.6 million), Northern Chumash Tribal Council ($1.4 million). Most common causes: religion-related (7), education (6), environment (6).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Woodlands Mutual Water Company of San Luis Obispo County | Public and societal benefit | 501(c)(12) | 2025 | $1.9 million | $2.3 million | 2024-12 |
| Central Coast Waldorf School | Education | 501(c)(3) | 2014 | $1.6 million | $289,434 | 2025-06 |
| Northern Chumash Tribal Council | Arts, culture and humanities | 501(c)(3) | 2009 | $1.4 million | $337,726 | 2024-12 |
| Ecologistics Inc | Environment | 501(c)(3) | 2010 | $986,383 | $594,531 | 2025-12 |
| Central Coast Polo Club | Recreation and sports | 501(c)(3) | 2002 | $449,156 | $191,241 | 2026-03 |
| S & T Mutual Water Co | 501(c)(12) | 1963 | $282,365 | $405,379 | 2024-12 | |
| Friends of Los Osos Library | 501(c)(3) | 1984 | $156,645 | $3.1 million | 2025-12 | |
| Mothers for Nuclear | Environment | 501(c)(3) | 2019 | $154,945 | $105,313 | 2024-12 |
| Little League Baseball Inc | Recreation and sports | 501(c)(3) | 1981 | $146,475 | $78,963 | 2025-09 |
| Soroptimist International of the Americas Inc | Crime and legal-related | 501(c)(3) | 2002 | $111,787 | $190,003 | 2025-06 |
| California Teachers Association | 501(c)(5) | 1976 | $109,804 | $263,130 | 2025-08 | |
| South Bay Soccer Association | 501(c)(3) | 1984 | $105,216 | $48,085 | 2026-02 | |
| South Bay Community Center | Human services | 501(c)(3) | 2021 | $91,128 | $340,479 | 2025-04 |
| South Bay Seniors People Helping People Organization | Community improvement and capacity building | 501(c)(3) | 1991 | $78,004 | $292,027 | 2024-12 |
| Los Osos Cares Inc | Human services | 501(c)(3) | 2017 | $69,861 | $107,766 | 2025-12 |
| Well Spring Childrens Center | Education | 501(c)(3) | 2009 | $56,572 | $258,682 | 2024-12 |
| Los Osos Baywood Park Chamber of Commerce | 501(c)(6) | 1984 | $55,514 | $48,709 | 2025-12 | |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $23,379 | $81,116 | 2025-06 | |
| 805 Rescue | Animal-related | 501(c)(3) | 2025 | |||
| American Association of University Women Inc | Education | 501(c)(4) | 2010 | $0 | $0 | 2025-06 |
| Bay-Osos Filipino Community Association | International, foreign affairs and national security | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Bay-Osos Kiwanis Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $0 | $0 | 2024-09 |
| Baywood Park Community Church | 501(c)(3) | 1967 | ||||
| Beyond Sycamore | Public and societal benefit | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Brothers and Mothers | Religion-related | 501(c)(3) | 2024 | |||
| Cabrillo Estates Property Owners Association | 501(c)(4) | 2018 | $0 | $0 | 2025-12 | |
| California Garden Clubs Inc | Environment | 501(c)(3) | 1969 | $0 | $0 | 2025-06 |
| California Retired Teachers Association | 501(c)(4) | 1971 | $0 | $0 | 2025-06 | |
| California Teachers Association | 501(c)(5) | 1976 | $0 | $0 | 2025-08 | |
| Central Coast Central Office Intergroup | 501(c)(3) | 1991 | $0 | $0 | 2025-12 | |
| Coast Riders Motorcycle Club Inc | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Estero Radio Club Inc | Arts, culture and humanities | 501(c)(3) | 2002 | $0 | $0 | 2024-12 |
| Giveable | International, foreign affairs and national security | 501(c)(3) | 2018 | $0 | $0 | 2025-03 |
| Holy Cross Syrian Orthodox Church | 501(c)(3) | 2013 | ||||
| Kappa Alpha Theta Fraternity | 501(c)(7) | 1940 | $0 | $0 | 2026-06 | |
| Kingdomstreams | Religion-related | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Kiwanis International Inc | 501(c)(4) | 1940 | $0 | $0 | 2024-09 | |
| Lerner Performance Mentors Inc | Human services | 501(c)(3) | 2025 | |||
| Lewis-Harlow Foundation for All Gods Creatures Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $1 million | 2024-12 | |
| Lighthouse Nonprofit Technologies Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | |||
| Living Room Church Inc | Religion-related | 501(c)(3) | 2018 | |||
| Los Osos Community Organization | 501(c)(3) | 1993 | $0 | $0 | 2025-12 | |
| Los Osos Pickleball Community | Community improvement and capacity building | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Los Osos Sustainability Group | Environment | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Los Osos Valley Garden Club | Environment | 501(c)(3) | 2026 | $0 | $0 | 2025-06 |
| Maharlika Christian Fellowship | Religion-related | 501(c)(3) | 2012 | |||
| Morro Shores Recreation Fund | Recreation and sports | 501(c)(7) | 2017 | $0 | $0 | 2025-12 |
| National Spiritual Assembly of the Bahais of the Us | 501(c)(3) | 1965 | ||||
| Ocean Pacific Church | 501(c)(3) | 1964 | ||||
| Otb Thinking | Education | 501(c)(3) | 2026 | |||
| 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) | 1943 | $0 | $95,746 | 2025-06 | |
| Reprise Foundation for the Arts | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Rotary Club of Los Osos Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $0 | $0 | 2024-12 |
| San Luis Obispo Zen Circle | Religion-related | 501(c)(3) | 2022 | |||
| Santa Lucia Flyfishing Club Inc | 501(c)(7) | 1975 | $0 | $0 | 2025-05 | |
| Save Cuesta Inlet Inc | Environment | 501(c)(3) | 2022 | $158,757 | 2024-12 | |
| Scholarship Memorials & Honors Comm Retired Teachers San Luis Obispo | Education | 501(c)(3) | 1996 | $0 | $0 | 2025-06 |
| Shilohs Animal Rescue Inc | Animal-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Slaters Sanctuary | Animal-related | 501(c)(3) | 2026 | |||
| Sloqueerdos | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Small Wilderness Area Preserves | 501(c)(3) | 1971 | $0 | $0 | 2025-06 | |
| Sogna Inc | Religion-related | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| South Bay Womens Network | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| St Benedicts-In-The-Valley Episcopal Church | 501(c)(3) | 1982 | ||||
| Sunny Oaks Residential Community Inc | Housing and shelter | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| The Way To Know Him and Make Him Known | Religion-related | 501(c)(3) | 1999 | |||
| The Well Los Osos | 501(c)(3) | 1974 | ||||
| Trinity United Methodist Church of Los Osos | 501(c)(3) | 1974 | ||||
| Vamos USA Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Velvet Noses Horse Ministry | Youth development | 501(c)(3) | 2020 | $0 | $0 | 2025-06 |
By cause in Los Osos, CA
- Religion-related 7
- Education 6
- Environment 6
- Philanthropy, voluntarism and grantmaking foundations 5
- Arts, culture and humanities 4
- Recreation and sports 4
- Animal-related 3
- Human services 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.