Data / Nonprofits / California / Eureka / Environment
Environment nonprofits in Eureka, CA: 9 registered with the IRS
9 environment nonprofits are registered with the IRS in Eureka, CA, 9 of them 501(c)(3) charities; the 3 that report revenue took in $2.6 million. The largest by revenue: Ridges To Riffles Indigenous Conservation Group ($1.7 million), Humboldt Botanical Gardens Foundation ($574,603), Forest WRX Alliance ($352,524).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Ridges To Riffles Indigenous Conservation Group | 501(c)(3) | 2024 | $1.7 million | $1.1 million | 2025-12 |
| Humboldt Botanical Gardens Foundation | 501(c)(3) | 1997 | $574,603 | $3.3 million | 2024-12 |
| Forest WRX Alliance | 501(c)(3) | 2025 | $352,524 | $178,944 | 2025-12 |
| Humboldt Countyprescribed Burn Association | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| North American Coastal Access Allia Nce | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Pacific Outfitters Green Team | 501(c)(3) | 2015 | $31,971 | 2025-12 | |
| Peoples Network for Land and Libera Tion | 501(c)(3) | 2026 | |||
| Salmon Forever | 501(c)(3) | 1997 | $0 | $0 | 2023-12 |
| Zero Waste Humboldt | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
Other causes in Eureka, CA
- Education 27
- Arts, culture and humanities 26
- Human services 22
- Recreation and sports 21
- Religion-related 19
- Community improvement and capacity building 17
- Animal-related 12
- Mental health and crisis intervention 10
- Health care 9
- Philanthropy, voluntarism and grantmaking foundations 6
- Public and societal benefit 6
- Crime and legal-related 5
- Food, agriculture and nutrition 4
- Housing and shelter 4
- Diseases, disorders and medical disciplines 4
- Public safety, disaster preparedness and relief 4
- Employment 3
- Civil rights, social action and advocacy 3
- Youth development 3
Every nonprofit in Eureka, 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.