Data / Nonprofits / Oklahoma / Environment
Environment nonprofits in Oklahoma: 178 registered with the IRS
178 environment nonprofits are registered with the IRS in Oklahoma, 164 of them 501(c)(3) charities; the 44 that report revenue took in $68.3 million. The most are in Tulsa (38), Oklahoma City (36), Norman (9). The largest by revenue: Compatible Lands Foundation Inc ($24.6 million), Land Legacy ($14.1 million), Native Preservation Co ($6.6 million).
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Every organization, largest by revenue first
| Organization | City | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Compatible Lands Foundation Inc | Pryor | 501(c)(3) | 2010 | $24.6 million | $13.1 million | 2024-12 |
| Land Legacy | Tulsa | 501(c)(3) | 2003 | $14.1 million | $120.9 million | 2025-12 |
| Native Preservation Co | Tulsa | 501(c)(3) | 2025 | $6.6 million | $6.6 million | 2024-12 |
| Myriad Gardens Foundation | Oklahoma City | 501(c)(3) | 1987 | $6.1 million | $12.2 million | 2025-06 |
| Oklahoma Centennial Botanical Garden Inc | Tulsa | 501(c)(3) | 2002 | $4 million | $25.5 million | 2024-12 |
| Genesis Project | Jones | 501(c)(3) | 1999 | $2.7 million | $1.6 million | 2025-06 |
| Oklahoma Association of Conservation Districts Incorporate | Oklahoma City | 501(c)(3) | 1973 | $2.4 million | $767,459 | 2024-12 |
| Oklahoma City Beautiful Inc | Oklahoma City | 501(c)(3) | 1970 | $889,369 | $585,200 | 2025-12 |
| Cimarron Terrace Water Association Inc | Ames | 501(c)(5) | 2022 | $762,941 | $354,496 | 2024-12 |
| Tulsa Garden Center Inc | Tulsa | 501(c)(3) | 1952 | $631,479 | $2.4 million | 2024-12 |
| Waterislife Global Inc | Broken Arrow | 501(c)(3) | 2024 | $599,939 | $149,869 | 2024-12 |
| Lake McMurtry Friends Inc | Stillwater | 501(c)(3) | 2014 | $474,819 | $115,359 | 2025-06 |
| Keep Oklahoma Beautiful Inc | Oklahoma City | 501(c)(3) | 1966 | $469,018 | $132,707 | 2025-06 |
| Tech-Now Inc | Norman | 501(c)(3) | 2003 | $424,638 | $78,259 | 2025-12 |
| Oklahoma Energy Education Foundation | Oklahoma City | 501(c)(3) | 2006 | $347,340 | $5.3 million | 2024-12 |
| Local Enviromental Action Demanded Agency Inc | Miami | 501(c)(3) | 2001 | $277,875 | $202,917 | 2024-12 |
| Tulsa Bike Share Inc | Tulsa | 501(c)(3) | 2020 | $257,959 | $301,864 | 2024-06 |
| Downtown Muskogee | Muskogee | 501(c)(3) | 2020 | $256,023 | $56,067 | 2025-12 |
| Kingfisher Trails Inc | Kingfisher | 501(c)(3) | 2003 | $236,754 | $225,985 | 2025-12 |
| Oklahoma Sustainability Network Association | Oklahoma City | 501(c)(3) | 2002 | $200,000 | $121,286 | 2024-12 |
| Oklahoma Floodplain Managers Association Inc | Tulsa | 501(c)(3) | 2008 | $196,019 | $175,957 | 2025-12 |
| Electronic Synergy Foundation | Tulsa | 501(c)(3) | 2014 | $176,332 | $1,249 | 2024-12 |
| Master Gardener Foundation of Tulsa Inc | Tulsa | 501(c)(3) | 1993 | $161,652 | $765,068 | 2024-12 |
| Lendonwood Gardens Inc | Grove | 501(c)(3) | 1997 | $128,866 | $447,282 | 2024-12 |
| Institute for Environmental Innovation | Coweta | 501(c)(3) | 2002 | $118,491 | $1.3 million | 2024-12 |
| Conservation Coalition of Oklahoma | Oklahoma City | 501(c)(4) | 2013 | $118,400 | $76,582 | 2025-12 |
| Water Serve Inc | Bethany | 501(c)(3) | 2014 | $112,097 | $32,037 | 2025-12 |
| Mary K Oxley Nature Center Association Inc | Tulsa | 501(c)(3) | 1975 | $111,265 | $445,966 | 2024-12 |
| Rising Tide Foundation Inc | Tulsa | 501(c)(4) | 2024 | $108,000 | $8,000 | 2024-12 |
| Pride in McAlester Inc | McAlester | 501(c)(3) | 2009 | $95,152 | $124,116 | 2026-06 |
| Oklahoma Prescribed Burn Association | Stillwater | 501(c)(3) | 2015 | $87,950 | $173,767 | 2025-12 |
| Friends of Heavener Runestone LLC | Heavener | 501(c)(3) | 2012 | $87,154 | $159,052 | 2024-12 |
| Kirkpatrick Policy Group Inc | Oklahoma City | 501(c)(4) | 2018 | $81,276 | $9,125 | 2025-12 |
| Friends of the Met Inc | Tulsa | 501(c)(3) | 2011 | $77,586 | $64,580 | 2025-06 |
| The Greater Oklahoma City Parks and Trails Foundation Inc | Oklahoma City | 501(c)(3) | 2007 | $56,459 | $107,133 | 2024-12 |
| Oklahoma Bass Federation Nation Inc | Catoosa | 501(c)(4) | 2008 | $53,757 | $8,659 | 2025-12 |
| Okra Oklahoma Recycling Association | Tulsa | 501(c)(3) | 2017 | $53,008 | $42,650 | 2024-12 |
| Wilderness Education Association | Stonewall | 501(c)(3) | 2014 | $35,892 | $71,772 | 2024-05 |
| Payne County Conservation Foundation Inc | Stillwater | 501(c)(3) | 1992 | $32,686 | $436,885 | 2026-06 |
| Tulsa Audubon Society Inc | Tulsa | 501(c)(3) | 1978 | $31,079 | $291,771 | 2024-12 |
| High Plains Resource Conservation & Development Association | Buffalo | 501(c)(3) | 1996 | $26,581 | $238,727 | 2025-04 |
| Ace Educational Foundation Inc | Edmond | 501(c)(3) | 2017 | $20,000 | $4.3 million | 2025-12 |
| Friends of Grand Lake Audubon Society | Jay | 501(c)(3) | 2024 | $5,858 | $2,833 | 2025-12 |
| Cpasa Inc | Tishomingo | 501(c)(3) | 2005 | $540 | $68,297 | 2025-09 |
| Adair County Litter Free & Green Association | Stilwell | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Advocates for Blueriver Foundation | Tishomingo | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| African Violet Society of Greater Tulsa | Broken Arrow | 501(c)(7) | 2003 | $0 | $0 | 2026-06 |
| Arbuckle Land Conservancy Inc | Shawnee | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Ardmore Beautification Council Inc | Ardmore | 501(c)(3) | 1996 | $3.2 million | 2025-12 | |
| Ardmore Regional Park Authority | Ardmore | 501(c)(3) | 2020 | |||
| CNG Initiative Inc | Ardmore | 501(c)(3) | 2025 | |||
| Capital Association of Professional Division Order Analysts | Oklahoma City | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Caring Limbs Foundation | Tulsa | 501(c)(3) | 2026 | |||
| Carrie Dickerson Foundation | Tulsa | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Cdots Institute for Innovation & Ec Onomic Growth Inc | Oklahoma City | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Cedar Lake Growth Inc | Hinton | 501(c)(3) | 2008 | $0 | $0 | 2023-12 |
| Center for the Study of Carbon and Energy Markets | Tulsa | 501(c)(3) | 2009 | $0 | $0 | 2024-12 |
| Central Oklahoma Stormwater Alliance Inc | Oklahoma City | 501(c)(3) | 2022 | $0 | $0 | 2026-06 |
| Central Park Community Garden Inc | Oklahoma City | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Chisholm Trail Historical Preservation Society | Yukon | 501(c)(3) | 1992 | $0 | $0 | 2025-04 |
| Cimarron Range Preservation Association | Freedom | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| Cleveland County Master Gardener Association | Norman | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Coalition of Oklahoma Landowners Inc | Tuttle | 501(c)(4) | 2024 | $0 | $0 | 2025-12 |
| Color Duncan Beautiful | Duncan | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Combat Veterans Motorcycle Associat Ion Oklahoma 10-7 | Ardmore | 501(c)(3) | 2025 | |||
| Creek County Prescribed Burn Association | Bristow | 501(c)(5) | 2013 | $0 | $0 | 2025-12 |
| Cross Timbers Prescribed Burn Association | Chandler | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Downtown Cushing Revitalization Association | Cushing | 501(c)(3) | 1996 | $0 | $0 | 2025-12 |
| Durant Sustainability Coalition Inc | Durant | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Durant Trails and Open Space | Durant | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Earth Rebirth | Oklahoma City | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Eco-Balance Initiative | Stillwater | 501(c)(3) | 2026 | |||
| Edmond Land Conservancy Inc | Edmond | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Environmental Innovators of America Inc | Edmond | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Fish Lake Land Trust Inc | Tulsa | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Forest Essence Foundation | Spavinaw | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Friends of Blue Thumb Inc | Oklahoma City | 501(c)(3) | 2014 | $0 | $0 | 2026-06 |
| Friends of Cpasa | Tishomingo | 501(c)(4) | 2011 | $0 | $0 | 2024-09 |
| Friends of Northern Flyer Alliance Inc | Stillwater | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Friends of Will Rogers Gardens Foundation | Oklahoma City | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Full Circle Heritage and Environmen Tal Alliance | Catoosa | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Garden Lakes Wetlands Conservancyinc | Oklahoma City | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Garfield County Master Gardeners | Enid | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Gloss Mountain Conservancy Inc | Fairview | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Great Plains Land and Wildlife Conservation Corporation | Tulsa | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Great Plains Preservation and Development Foundation | Stillwater | 501(c)(3) | 1994 | $0 | $0 | 2024-12 |
| Green Connections Inc | Oklahoma City | 501(c)(3) | 1996 | $0 | $0 | 2025-08 |
| Green Country Conservation Alliance | Eucha | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Green It Foundation Inc | Oklahoma City | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Hackberry Flat Foundation Incorporated | Frederick | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Hellenic Foundation for the Preservation of HIST&CULTURE Inc | Tulsa | 501(c)(3) | 2003 | $0 | $0 | 2024-12 |
| International Water for Life Inc | Nichols Hills | 501(c)(3) | 2006 | $0 | $0 | 2023-12 |
| Kay County Master Gardeners Incorporated | Ponca City | 501(c)(3) | 2010 | $0 | $0 | 2026-06 |
| Keep Broken Arrow Beautiful Inc | Broken Arrow | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Keep Catoosa Beautiful Inc | Catoosa | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Keep Hochatown Beautiful Inc | Broken Bow | 501(c)(3) | 2025 | |||
| Kiamichi River Legacy Alliance | Antlers | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Lake Thunderbird Watershed Alliance Inc | Norman | 501(c)(3) | 2025 | |||
| Lake of the Arbuckles Watershed Association Inc | Sulphur | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Lillian Timber Farms Inc | Oklahoma City | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Lower Mountain Fork River Foundation | Broken Bow | 501(c)(3) | 2006 | $0 | $0 | 2025-10 |
| Mission503 Inc | Oklahoma City | 501(c)(4) | 2021 | $0 | $0 | 2025-12 |
| Mosaic Gardens Syndicate | Tulsa | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Native Explorers Foundation | Edmond | 501(c)(3) | 2013 | $3,089 | 2024-12 | |
| Ne Okc Community & Cultural Center Garden | Okc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| New Hope Cemetery Fund | Westville | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| No Mo Styro | Tulsa | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Norman Area Land Conservancy Inc | Norman | 501(c)(3) | 2000 | $0 | $0 | 2026-06 |
| North America Telecommunications Damage Prevention Council Inc | Oklahoma City | 501(c)(6) | 2026 | $0 | $0 | 2026-02 |
| North American Trail Education Inc | Clinton | 501(c)(3) | 2020 | $0 | $0 | 2023-12 |
| North American Wood Ape Conservancy | Oklahoma City | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Oklahoma Association of Resource Conservation & Development Council | Weatherford | 501(c)(3) | 1993 | $0 | $0 | 2025-12 |
| Oklahoma Asssociation for Environmental Education | Oklahoma City | 501(c)(3) | 1997 | $0 | $0 | 2024-12 |
| Oklahoma City National Pan Hellenic Council | Oklahoma City | 501(c)(3) | 2025 | |||
| Oklahoma Clean Lakes Association | Oklahoma City | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Oklahoma Climbers Coalition | Oklahoma City | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Oklahoma Compost and Sustainability Association | Oklahoma City | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Oklahoma County Master Gardeners Association | Oklahoma City | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Oklahoma Daffodil and Tulip Society | Blanchard | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Oklahoma Ecology Project Inc | Tulsa | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Oklahoma Garden Clubs | Edmond | 501(c)(3) | 1976 | $0 | $0 | 2025-12 |
| Oklahoma Gardeners Association | Bethany | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Oklahoma Grazing Lands Coalition Inc | Oklahoma City | 501(c)(3) | 2001 | $0 | $0 | 2025-09 |
| Oklahoma Green Schools Program Inc | Oklahoma City | 501(c)(3) | 2012 | $0 | $0 | 2024-12 |
| Oklahoma Invasive Plant Council | Norman | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Oklahoma Land Conservancy Inc | Tulsa | 501(c)(3) | 2026 | |||
| Oklahoma Orchid Society | Norman | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Oklahoma Pastel Society | Oklahoma City | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Oklahoma Prescribed Burn Association | Woodward | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Oklahoma Prescribed Burn Association Group | Stillwater | 501(c)(3) | 2015 | |||
| Oklahomans for Responsible Water Policy Inc | Broken Bow | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Ouachita Mountains Resource Conservation & Development | Poteau | 501(c)(3) | 1989 | $0 | $0 | 2025-12 |
| Owasso Bouquet of Gardeners | Owasso | 501(c)(4) | 2007 | $0 | $0 | 2026-01 |
| Ozark Cave Diving Alliance | Broken Arrow | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Paint Horse Club of Oklahoma Inc | Norman | 501(c)(5) | 2023 | $0 | $0 | 2025-12 |
| Piedmont Historical Society | Piedmont | 501(c)(3) | 1992 | $0 | $0 | 2025-12 |
| Power of Partial Improvements Foundation | Tulsa | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Prairie Conservation Action Program Incorporation | Vici | 501(c)(3) | 2026 | |||
| Reeds Friends Inc | Tulsa | 501(c)(3) | 2026 | |||
| Reformed Solutions Inc | Duncan | 501(c)(3) | 2024 | $0 | $0 | 2025-05 |
| Renfro Family Foundation | Ponca City | 501(c)(3) | 2014 | $24,787 | 2025-12 | |
| Restoration Collective Inc | Tulsa | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Rogue Conservation Corp | Tulsa | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Scissortail Land and Wildlife Corp | Tulsa | 501(c)(3) | 2025 | $0 | $1 | 2025-12 |
| Shartel Boulevard Development Authority Inc | Oklahoma City | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Solid Waste Institute of Northeast Oklahoma | Tahlequah | 501(c)(3) | 1991 | $0 | $0 | 2025-12 |
| South Asian Student Association | Norman | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| South Central Region of National Council of State Garden Clubs Inc | Edmond | 501(c)(3) | 2000 | $0 | $0 | 2026-05 |
| Spring Creek Coalition Inc | Oaks | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Talimena Scenic Drive Association Inc | Talihina | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Tall Bearded Iris Society | Midwest City | 501(c)(3) | 2001 | $0 | $0 | 2025-09 |
| Team Up To Clean Up | Eufaula | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Tenkiller Park Partners | Vian | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
| The Orphan Well Cooperative Inc | Tulsa | 501(c)(3) | 2021 | $0 | $0 | 2026-06 |
| The Prairie Dominion Integration Syndicate | Tulsa | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Tishomingo Refuge Ecology and Education Society | Tishomingo | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Town of Bessie Foundation Inc | Bessie | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Triple F Outdoors Inc | Ochelata | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| Tulsa Area Arkansas River Advocates | Tulsa | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Tulsa Area Conservation Foundation | Tulsa | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Tulsa Area Daylily Society | Tulsa | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Tulsa Community Garden Associationinc | Tulsa | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Tulsa Herb Society | Tulsa | 501(c)(4) | 2002 | $0 | $0 | 2025-12 |
| Tulsa Master Recyclers Association | Tulsa | 501(c)(3) | 2009 | $0 | $0 | 2026-06 |
| Tulsa Nature Explore Inc | Tulsa | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Tulsa Urban Wilderness Coalition Inc | Tulsa | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Twin Bridges Park Partners | Fairland | 501(c)(3) | 2013 | $0 | $0 | 2023-12 |
| Twin Rivers Prescribed Burn Association | Okemah | 501(c)(3) | 2026 | |||
| Ugly Mugz Foundation Inc | Clinton | 501(c)(3) | 2020 | $0 | $0 | 2023-12 |
| United Founders Neighborhood Foundation Inc | Oklahoma City | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Vertical Solutions Inc | Lawton | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Washington County Master Gardeners | Bartlesville | 501(c)(3) | 2026 | |||
| Water Industry Advancement and Sustainability Institute | Duncan | 501(c)(3) | 2018 | $0 | $0 | 2026-02 |
| Watershed Restoration Incorporated | Norman | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Watershed Sustainability Alliance Inc | Oklahoma City | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Wheatland Resource Conservation and Development Association | Ponca City | 501(c)(3) | 1992 | $0 | $0 | 2025-09 |
| Wichita Mountains Climbers Coalition Inc | Oklahoma City | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Wilburton Chamber Foundation Inc | Wilburton | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
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.