Data / Nonprofits / Arizona / Tucson / Environment
Environment nonprofits in Tucson, AZ: 75 registered with the IRS
75 environment nonprofits are registered with the IRS in Tucson, AZ, 74 of them 501(c)(3) charities; the 31 that report revenue took in $28.7 million. The largest by revenue: Tucson Botanical Gardens ($6.2 million), Tohono Chul Park Inc ($4.7 million), Native Seeds Southwestrn Endangered Aridland Resources Clearing House ($2.3 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Tucson Botanical Gardens | 501(c)(3) | 1970 | $6.2 million | $12.2 million | 2025-06 |
| Tohono Chul Park Inc | 501(c)(3) | 1982 | $4.7 million | $11.9 million | 2025-06 |
| Native Seeds Southwestrn Endangered Aridland Resources Clearing House | 501(c)(3) | 1983 | $2.3 million | $2.7 million | 2025-09 |
| Southwestern Environmental Education Exchange | 501(c)(3) | 1991 | $1.7 million | $890,360 | 2024-12 |
| Tucson Clean and Beautiful Inc | 501(c)(3) | 1986 | $1.7 million | $529,685 | 2025-06 |
| Wild Arizona | 501(c)(3) | 2004 | $1.5 million | $358,180 | 2024-12 |
| Arizona Land and Water Trust Inc | 501(c)(3) | 1979 | $1.3 million | $20.3 million | 2025-09 |
| Watershed Management Group Inc | 501(c)(3) | 2005 | $1.3 million | $1.1 million | 2024-12 |
| Sky Island Alliance | 501(c)(3) | 1995 | $1.3 million | $1.1 million | 2024-12 |
| Friends of Saguaro National Park Inc | 501(c)(3) | 1997 | $1.2 million | $1.4 million | 2024-12 |
| Sonora Environmental Research Institute Inc | 501(c)(3) | 1994 | $1.1 million | $285,157 | 2024-12 |
| Youth Outdoor Experience | 501(c)(3) | 2014 | $578,299 | $117,333 | 2025-06 |
| Altar Valley Conservation Alliance | 501(c)(3) | 2002 | $569,108 | $2.1 million | 2024-12 |
| Coalition for Sonoran Desert Protection | 501(c)(3) | 2018 | $554,998 | $701,318 | 2025-12 |
| The Freecycle Network | 501(c)(3) | 2006 | $426,737 | $1.2 million | 2025-06 |
| Cuenca de Los Ojos | 501(c)(3) | 2018 | $375,552 | $891,670 | 2024-12 |
| Mongol Ecology Center | 501(c)(3) | 2014 | $331,732 | $111,348 | 2025-12 |
| Save the Scenic Santa Ritas | 501(c)(3) | 1997 | $280,990 | $508,965 | 2025-12 |
| Pima County Parklands Foundation | 501(c)(3) | 1986 | $183,533 | $1.5 million | 2025-12 |
| Tucson Cactus and Succulent Society Inc | 501(c)(3) | 2001 | $175,605 | $481,570 | 2025-12 |
| Friends of Sabino Canyon Inc | 501(c)(3) | 1993 | $155,690 | $531,213 | 2025-12 |
| Arizona Mining Reform Coalition | 501(c)(3) | 2022 | $155,242 | $183,721 | 2025-12 |
| Keep Tucson Clean Inc | 501(c)(3) | 2025 | $149,214 | $1 | 2025-12 |
| Lake Baikal Heritage Foundation | 501(c)(3) | 2008 | $119,427 | $37,699 | 2025-12 |
| Saguaro Juniper Corporation | 501(c)(3) | 2024 | $85,178 | $362,539 | 2025-12 |
| Sycamore Canyon Conservationfoundation | 501(c)(3) | 2007 | $80,752 | $95,530 | 2025-06 |
| Society for Ecological Restoration - Southwest Chapter | 501(c)(3) | 2014 | $61,747 | $59,736 | 2024-12 |
| Trail Riders of Southern Arizona | 501(c)(3) | 2014 | $54,259 | $51,176 | 2025-12 |
| Rincon Institute | 501(c)(3) | 1992 | $14,406 | $35,599 | 2026-06 |
| Nose Knows Conservation Foundation | 501(c)(3) | 2022 | $3,500 | $15,167 | 2023-12 |
| Irondequoit Conservation Society Inc | 501(c)(3) | 2016 | $8 | $578,605 | 2025-06 |
| Arizona Association of Environmental Professionals | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Arizona Master Naturalist Association | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Arizona Native Plant Society | 501(c)(3) | 1977 | $0 | $0 | 2025-12 |
| Arizona Section Society for Range Management | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Bee Balanced | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Coronado Forest Dr Water Coop | 501(c)(3) | 2026 | |||
| Dont Waste Arizona Inc | 501(c)(3) | 1993 | $0 | $0 | 2025-12 |
| Edward Paul Abbey Foundation | 501(c)(3) | 2018 | $0 | $0 | 2025-05 |
| El Moraga-Bar Ranch Improvement District | 501(c)(3) | 2004 | $0 | $0 | 2026-06 |
| Ev Chargers for Schools | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Friends of Fort Lowell Park | 501(c)(3) | 2020 | $0 | $0 | 2026-06 |
| Friends of Ironwood Forest | 501(c)(3) | 2009 | $0 | $0 | 2025-09 |
| Friends of Redington Pass Inc | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Friends of Rio Vista | 501(c)(3) | 2021 | $0 | $0 | 2026-06 |
| Friends of the Santa Catalina Trails | 501(c)(3) | 2022 | $0 | $0 | 2026-06 |
| Friends of the Sonoran Desert Inc | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Hashers Not Trashers | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Having Kids | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Hawaiian Silversword Foundation | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Holistic Ecosystem Approaches for Land and Life | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Milagro Community Garden & Chicken Farm | 501(c)(3) | 2025 | |||
| Mount Graham Coalition Inc | 501(c)(3) | 1993 | $0 | $0 | 2024-12 |
| Natural Allies | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Navopatia Field Station | 501(c)(3) | 2002 | $0 | $0 | 2026-04 |
| Neotropic Foundation | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Pima Center for Conservation Education | 501(c)(3) | 1996 | $0 | $0 | 2026-06 |
| Reusing the Right Way Incorporated | 501(c)(3) | 2024 | $0 | $0 | 2023-12 |
| Rillito River Project | 501(c)(3) | 2009 | $0 | $0 | 2024-12 |
| S-Cuk Son Land Trust | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Seeds Community Center | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Siete Casa Corporation | 501(c)(12) | 2018 | $0 | $0 | 2024-12 |
| Sonoran Desert Mountain Bicyclists | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Southern Arizona Accessible Wildlife Refuge | 501(c)(3) | 2022 | $0 | $0 | 2025-09 |
| Sunnyside Neighborhood Association | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Sweetwater Center | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Terrasante Village | 501(c)(3) | 2011 | $843 | 2025-12 | |
| Thirst Cure | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Tierra Del Sol Institute | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Tortolita Alliance | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Tucscon Bonsai Society | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Tucson Garden Railway Society | 501(c)(3) | 2007 | $0 | $0 | 2025-06 |
| Tucson Orchid Society | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Tucson-Oro Valley Citizens Climate Education | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Underground Arizona Inc | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
Other causes in Tucson, AZ
- Education 467
- Religion-related 395
- Human services 317
- Arts, culture and humanities 296
- Recreation and sports 268
- Philanthropy, voluntarism and grantmaking foundations 199
- Animal-related 139
- Community improvement and capacity building 138
- Health care 124
- Youth development 94
- Public and societal benefit 68
- Mental health and crisis intervention 64
- Housing and shelter 62
- International, foreign affairs and national security 56
- Crime and legal-related 39
- Diseases, disorders and medical disciplines 31
- Medical research 30
- Employment 30
- Food, agriculture and nutrition 30
- Science and technology 26
- Public safety, disaster preparedness and relief 25
- Civil rights, social action and advocacy 23
- Mutual and membership benefit 16
- Social science 6
Every nonprofit in Tucson, AZ · 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.