Data / Nonprofits / Texas / San Antonio / Environment
Environment nonprofits in San Antonio, TX: 66 registered with the IRS
66 environment nonprofits are registered with the IRS in San Antonio, TX, 65 of them 501(c)(3) charities; the 23 that report revenue took in $204.7 million. The largest by revenue: Great Hearts America-Texas ($148.6 million), Texas Agricultural Land Trust ($27.8 million), San Antonio Botanical Garden Society Inc ($10.9 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Great Hearts America-Texas | 501(c)(3) | 2003 | $148.6 million | $356.9 million | 2025-06 |
| Texas Agricultural Land Trust | 501(c)(3) | 2007 | $27.8 million | $8 million | 2025-03 |
| San Antonio Botanical Garden Society Inc | 501(c)(3) | 1981 | $10.9 million | $50.9 million | 2025-09 |
| Diamond Bar Conservation | 501(c)(3) | 2024 | $6.6 million | $8.1 million | 2025-09 |
| San Antonio River Foundation | 501(c)(3) | 2003 | $1.9 million | $5.3 million | 2025-06 |
| Gardopia Gardens | 501(c)(3) | 2016 | $1.6 million | $911,545 | 2025-05 |
| Arboretum San Antonio | 501(c)(3) | 2022 | $1.5 million | $2.5 million | 2024-12 |
| Bexar Land Trust Inc | 501(c)(3) | 1998 | $1.3 million | $3.9 million | 2024-12 |
| Metropolitan Partnership for Energy | 501(c)(3) | 2002 | $1.1 million | $782,234 | 2024-12 |
| Galen Foundation | 501(c)(3) | 2022 | $741,566 | $2.5 million | 2025-12 |
| Greater Edwards Aquifer Alliance Inc | 501(c)(3) | 2005 | $605,707 | $1 million | 2025-12 |
| Edwards Aquifer Conservancy | 501(c)(3) | 2015 | $382,807 | $24.3 million | 2024-12 |
| Bexar Branches Alliance Corp | 501(c)(3) | 2022 | $298,325 | $200,982 | 2024-12 |
| Shades of Green Legacy Foundation | 501(c)(3) | 2023 | $274,658 | $960,349 | 2025-12 |
| South Texas Coastal Initiative | 501(c)(3) | 2023 | $221,730 | $235,766 | 2025-12 |
| Texas Garden Clubs Inc | 501(c)(3) | 1993 | $190,229 | $260,458 | 2025-05 |
| Terra Advocati Inc | 501(c)(3) | 2015 | $148,767 | $46,743 | 2024-12 |
| Eco Kids Club Inc | 501(c)(3) | 2023 | $108,743 | $38,683 | 2025-12 |
| Bexar County Master Gardeners | 501(c)(3) | 1991 | $93,399 | $442,425 | 2025-12 |
| River Aid San Antonio | 501(c)(3) | 2022 | $91,821 | $31,238 | 2024-06 |
| Gardening Volunteers of South Texas | 501(c)(3) | 2003 | $87,684 | $216,613 | 2025-12 |
| Bexar Audubon Society | 501(c)(3) | 1984 | $84,328 | $220,560 | 2025-06 |
| Green Hand Garden Club | 501(c)(7) | 2016 | $62,263 | $80,728 | 2026-06 |
| Adam Tree Foundation | 501(c)(3) | 2024 | |||
| Alamo Area Chapter of the Texas Master Naturalist Inc | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Alamo Orchid Society Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| American Home & Garden Round Table | 501(c)(3) | 2020 | $0 | $0 | 2026-06 |
| Bexar Blooms Inc | 501(c)(3) | 2026 | |||
| Bexar Grotto | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Buzu Foundation | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Carivino Cares Inc | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Circular San Antonio | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Come Into the Outside | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Deafinitely Green | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Dominion Mens Golf Association | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Ecoshare Initiative | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Esperanza Project | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Friends of McAllister Park San Antonio Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Fundacion Ecologica Selva Negra | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
| Government Canyon Natural History Association | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Green Society A Non-Profit Texas Corporation | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Gulf of Tomorrow | 501(c)(3) | 2026 | $0 | $0 | 2026-06 |
| Hot Wells Conservancy | 501(c)(3) | 2014 | $0 | $0 | 2023-12 |
| Hydro-Geo Workshop | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Invasive Species Management Services - Isms | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Keep San Antonio Beautiful Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Lite Air Technologies Dac | 501(c)(3) | 2025 | |||
| Mahncke Park Community Garden | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Metl Matters | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Neighborhood of Eden Project | 501(c)(3) | 2025 | |||
| Oars Foundation Inc | 501(c)(3) | 2021 | $0 | $1 | 2025-12 |
| Promote Lake LBJ | 501(c)(3) | 2026 | |||
| Raw Memorial Fund | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Redneck Revolution | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| San Antonio Orchid Society | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| San Antonio Stockyards Historical Society | 501(c)(3) | 2019 | $0 | $0 | 2025-01 |
| San Antonio Trees | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| San Antontio Composting Project | 501(c)(3) | 2025 | |||
| Sons & Daughters of Beaches | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Southwest Section of the Air & Waste Management Association | 501(c)(3) | 1997 | $0 | $0 | 2026-04 |
| Sun & Sol Sustainability | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| The Vetiver Network | 501(c)(3) | 1996 | $31,219 | 2025-12 | |
| Urban Canopy TX | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Water Garden Club of South Texas Inc | 501(c)(3) | 2002 | $0 | $0 | 2024-12 |
| Wild Story Lab | 501(c)(3) | 2021 | $0 | $1 | 2022-12 |
| Wild at Heart | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
Other causes in San Antonio, TX
- Religion-related 891
- Education 720
- Human services 571
- Philanthropy, voluntarism and grantmaking foundations 444
- Arts, culture and humanities 380
- Recreation and sports 318
- Community improvement and capacity building 288
- Health care 193
- Housing and shelter 181
- Youth development 166
- Public and societal benefit 155
- Animal-related 120
- Mutual and membership benefit 92
- Mental health and crisis intervention 84
- International, foreign affairs and national security 66
- Crime and legal-related 64
- Food, agriculture and nutrition 54
- Diseases, disorders and medical disciplines 53
- Civil rights, social action and advocacy 44
- Public safety, disaster preparedness and relief 39
- Medical research 38
- Employment 30
- Science and technology 29
- Social science 4
Every nonprofit in San Antonio, TX · 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.