Data / Nonprofits / California / Pasadena / Environment
Environment nonprofits in Pasadena, CA: 32 registered with the IRS
32 environment nonprofits are registered with the IRS in Pasadena, CA, 31 of them 501(c)(3) charities; the 15 that report revenue took in $63 million. The largest by revenue: Carbon Mapper Inc ($42 million), Ctrees ($7.5 million), Council for Watershed Health ($6.9 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Carbon Mapper Inc | 501(c)(3) | 2020 | $42 million | $45.3 million | 2025-08 |
| Ctrees | 501(c)(3) | 2022 | $7.5 million | $6.3 million | 2025-12 |
| Council for Watershed Health | 501(c)(3) | 1996 | $6.9 million | $4.8 million | 2025-06 |
| Arroyos & Foothills Conservancy | 501(c)(3) | 2000 | $2.1 million | $6.1 million | 2025-06 |
| Outward Bound Adventures Inc | 501(c)(3) | 1969 | $2 million | $1.9 million | 2024-12 |
| Cactus & Succulent Society of America Inc | 501(c)(3) | 1983 | $739,689 | $1.4 million | 2025-12 |
| Save Our Mojave | 501(c)(3) | 2015 | $569,890 | $555,551 | 2024-12 |
| Arlington Garden in Pasadena | 501(c)(3) | 2005 | $421,552 | $319,094 | 2025-06 |
| Pasadena Tournament of Roses Foundation | 501(c)(3) | 1984 | $340,522 | $4.4 million | 2024-12 |
| Arroyo Seco Foundation | 501(c)(3) | 1991 | $117,193 | $276,780 | 2025-12 |
| Southern California Horticultural Society Inc | 501(c)(3) | 1953 | $77,380 | $814,745 | 2025-06 |
| Pasadena Garden Club | 501(c)(3) | 2002 | $51,321 | $149,916 | 2025-06 |
| Pasadena Beautiful Foundation | 501(c)(3) | 1986 | $38,404 | $80,058 | 2025-06 |
| Coyotl Macehualli | 501(c)(3) | 2021 | $34,917 | $51,275 | 2024-12 |
| Pasadena La Casita Foundation | 501(c)(3) | 1991 | $19,675 | $985,757 | 2025-12 |
| Balboa Conservation Project | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Edgar G Ulmer Preservation Corp | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Environmental Scouts Inc | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Environmental Strategies International | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Indo-Pacific Climate Challenge Summit & Expo | 501(c)(3) | 2024 | |||
| Las Madres Lunares | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Outdoor Classroom Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Pasadena Complete Streets Coalition | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Pasadena Native Plant Project | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Planet Earth Observatory | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Planetwise | 501(c)(3) | 2025 | $0 | $0 | 2026-01 |
| Plus Coalition | 501(c)(6) | 2006 | $0 | $0 | 2025-12 |
| Poly-Ana | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Shorecliffs Conservancy | 501(c)(3) | 2024 | |||
| Stewards of Public Land | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| The Green Fenix Inc | 501(c)(3) | 2026 | $0 | $1 | 2025-12 |
| Watercitizen | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
Other causes in Pasadena, CA
- Religion-related 220
- Arts, culture and humanities 176
- Education 168
- Philanthropy, voluntarism and grantmaking foundations 162
- Human services 123
- Community improvement and capacity building 95
- Recreation and sports 66
- Youth development 48
- Health care 41
- Housing and shelter 36
- Mental health and crisis intervention 34
- International, foreign affairs and national security 25
- Animal-related 23
- Public and societal benefit 21
- Employment 17
- Mutual and membership benefit 15
- Public safety, disaster preparedness and relief 15
- Diseases, disorders and medical disciplines 13
- Civil rights, social action and advocacy 12
- Science and technology 12
- Food, agriculture and nutrition 11
- Crime and legal-related 9
- Medical research 7
- Social science 4
Every nonprofit in Pasadena, 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.