Data / Nonprofits / California / Sebastopol / Environment
Environment nonprofits in Sebastopol, CA: 16 registered with the IRS
16 environment nonprofits are registered with the IRS in Sebastopol, CA, 16 of them 501(c)(3) charities; the 5 that report revenue took in $1.7 million. The largest by revenue: California River Watch ($932,482), Apis Arborea ($292,239), Hallberg Butterfly Gardens ($252,377).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| California River Watch | 501(c)(3) | 1997 | $932,482 | $929,627 | 2025-12 |
| Apis Arborea | 501(c)(3) | 2022 | $292,239 | $195,509 | 2025-12 |
| Hallberg Butterfly Gardens | 501(c)(3) | 1997 | $252,377 | $2.1 million | 2025-12 |
| Transition Us | 501(c)(3) | 2008 | $125,002 | $51,940 | 2023-12 |
| Neighborhood Coalition | 501(c)(3) | 2023 | $106,925 | $2,887 | 2025-12 |
| Atascadero - Green Valley Watershed Council | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Daniels Family Sustainable Energy Foundation | 501(c)(3) | 2020 | $19,183 | 2024-12 | |
| Deer Knuckle Society Inc | 501(c)(3) | 1995 | $0 | $0 | 2025-12 |
| Green Valley Foundation | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Habitat Corridor Project | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Heavenly Presents | 501(c)(3) | 2022 | $30 | 2023-12 | |
| Protectors of Wellbeing Environment and Residents | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Regenerative Forest Solutions | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| The Friends of Vintage Roses | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| U S Green Building Council-Redwood Empire Chapter | 501(c)(3) | 2005 | $0 | $0 | 2025-06 |
| Waterways Restoration Institute | 501(c)(3) | 1996 | $0 | $0 | 2025-09 |
Other causes in Sebastopol, CA
- Education 33
- Arts, culture and humanities 27
- Religion-related 17
- Philanthropy, voluntarism and grantmaking foundations 14
- Animal-related 13
- Health care 10
- Human services 10
- Recreation and sports 9
- Housing and shelter 7
- Community improvement and capacity building 6
- Food, agriculture and nutrition 6
- International, foreign affairs and national security 5
- Science and technology 4
- Public safety, disaster preparedness and relief 4
- Youth development 4
- Mutual and membership benefit 3
- Civil rights, social action and advocacy 3
- Mental health and crisis intervention 3
Every nonprofit in Sebastopol, CA · Environment nonprofits across the state · 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.