Data / Nonprofits / Missouri / Saint Louis / Environment
Environment nonprofits in Saint Louis, MO: 55 registered with the IRS
55 environment nonprofits are registered with the IRS in Saint Louis, MO, 53 of them 501(c)(3) charities; the 25 that report revenue took in $125.7 million. The largest by revenue: Missouri Botanical Garden Board of Trustees ($61 million), Forest Park Forever Inc ($42.3 million), Planet Indonesia ($3.2 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Missouri Botanical Garden Board of Trustees | 501(c)(3) | 1937 | $61 million | $414.1 million | 2025-09 |
| Forest Park Forever Inc | 501(c)(3) | 1987 | $42.3 million | $246.2 million | 2024-12 |
| Planet Indonesia | 501(c)(3) | 2014 | $3.2 million | $1.2 million | 2025-12 |
| National Garden Clubs Incorporated | 501(c)(3) | 1953 | $2.9 million | $26.3 million | 2025-05 |
| WDH Foundation-C4 | 501(c)(4) | 2014 | $2.8 million | $91.5 million | 2024-12 |
| Botanical Society of America Inc | 501(c)(3) | 1940 | $2.5 million | $10 million | 2025-09 |
| The Open Space Council for the St Louis Region | 501(c)(3) | 1967 | $1.4 million | $1.9 million | 2025-12 |
| Forest Releaf of Missouri | 501(c)(3) | 1994 | $1.3 million | $2.7 million | 2024-12 |
| National Network of Abortion Funds | 501(c)(3) | 1994 | $1.2 million | $1.9 million | 2025-06 |
| Mississippi River Cities & Towns Initiative | 501(c)(3) | 2016 | $1 million | $826,809 | 2024-12 |
| Missouri Coalition for the Environment Foundation | 501(c)(3) | 1971 | $981,097 | $935,130 | 2025-06 |
| Seed Saint Louis | 501(c)(3) | 1984 | $811,737 | $1.4 million | 2024-12 |
| St Louis Earth Day | 501(c)(3) | 2002 | $747,553 | $424,743 | 2025-08 |
| Rustic Roots Sanctuary Co | 501(c)(3) | 2020 | $700,216 | $445,249 | 2024-12 |
| Magnificent Missouri Inc | 501(c)(3) | 2012 | $469,167 | $1.5 million | 2025-12 |
| Sahara Conservation Fund | 501(c)(3) | 2009 | $465,180 | $1.2 million | 2025-12 |
| St Louis Art Place Initiative Inc | 501(c)(3) | 2019 | $440,952 | $377,174 | 2024-12 |
| Passback | 501(c)(3) | 2023 | $416,150 | $308,585 | 2025-12 |
| Us Industrial Inventory Solutions | 501(c)(3) | 2020 | $355,562 | $80 | 2024-12 |
| Perennial | 501(c)(3) | 2011 | $326,404 | $68,700 | 2025-12 |
| The Friends of the Green Center | 501(c)(3) | 1998 | $253,606 | $611,653 | 2025-09 |
| Ladue Garden Club | 501(c)(3) | 1994 | $47,618 | $102,537 | 2024-06 |
| Flora Conservancy of Forest Park Inc | 501(c)(3) | 2020 | $42,049 | $22,753 | 2024-12 |
| Resource Recovery Project | 501(c)(3) | 1994 | $36,582 | $104,423 | 2024-12 |
| Innsbrook Fishing Club - A Nonprofit Corporation | 501(c)(3) | 2024 | $27,055 | $10,451 | 2025-12 |
| Ceiba Biological Center | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Climate Herald | 501(c)(3) | 2024 | |||
| Climate Prosperity Project Inc | 501(c)(3) | 2010 | $0 | $0 | 2024-12 |
| Federated Garden Clubs of Missouri Inc | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Foothills Prescribed Burn Association | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Friends of Hawn Association | 501(c)(3) | 2016 | $0 | $0 | 2025-07 |
| Fundacion Colombiana Eco-Logica | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Greater Maries Prescribed Burn Association | 501(c)(3) | 2024 | |||
| Helen G Walker Foundation | 501(c)(3) | 1995 | $567,102 | 2026-01 | |
| Klear Foundation | 501(c)(3) | 2016 | $4.2 million | 2025-12 | |
| Landscape and Nurserymens Association of Greater St Louis | 501(c)(6) | 2005 | $0 | $0 | 2025-12 |
| McKinley Heights Neighborhood Association | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Midamerica Clean Future Alliance | 501(c)(3) | 2025 | |||
| Missouri Confluence Waterkeeper | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Missouri Land Trust Coalition | 501(c)(3) | 2026 | |||
| Mona Project Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Olivette in Bloom | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| One Drop for Life | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Ozark Fly Fishers Inc | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Plant Youth Foundation | 501(c)(3) | 2025 | |||
| Red Brick Community Land Trust | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| River Des Peres Watershed Coalition | 501(c)(3) | 2014 | $0 | $0 | 2025-09 |
| STL Treelc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Shalom Restoration Group | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Stanley & Marty Arkwright Conservation Trust 2013 | 501(c)(3) | 2006 | $3.2 million | 2025-12 | |
| Surendra and Karen Gupta Arc Foundation | 501(c)(3) | 2000 | $3.4 million | 2025-12 | |
| The Environmentalists | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| The Headwaters Conservancy Inc | 501(c)(3) | 2002 | $24,035 | 2025-12 | |
| WDH Foundation-C3 Trust | 501(c)(3) | 2017 | $38.8 million | 2024-12 | |
| Webster Groves Womens Garden Association | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
Other causes in Saint Louis, MO
- Philanthropy, voluntarism and grantmaking foundations 1,432
- Education 770
- Human services 608
- Religion-related 523
- Arts, culture and humanities 425
- Community improvement and capacity building 298
- Health care 293
- Recreation and sports 222
- Youth development 186
- Housing and shelter 152
- Mental health and crisis intervention 103
- Public and societal benefit 87
- Animal-related 84
- Crime and legal-related 66
- Diseases, disorders and medical disciplines 64
- Employment 54
- Civil rights, social action and advocacy 47
- Food, agriculture and nutrition 46
- International, foreign affairs and national security 43
- Mutual and membership benefit 39
- Public safety, disaster preparedness and relief 37
- Medical research 20
- Science and technology 19
- Social science 6
Every nonprofit in Saint Louis, MO · 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.