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Data / Nonprofits / Oklahoma / Oklahoma City / Environment

Environment nonprofits in Oklahoma City, OK: 36 registered with the IRS

36 environment nonprofits are registered with the IRS in Oklahoma City, OK, 32 of them 501(c)(3) charities; the 9 that report revenue took in $10.6 million. The largest by revenue: Myriad Gardens Foundation ($6.1 million), Oklahoma Association of Conservation Districts Incorporate ($2.4 million), Oklahoma City Beautiful Inc ($889,369).

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Get environment nonprofits in Oklahoma City

Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Myriad Gardens Foundation501(c)(3)1987$6.1 million$12.2 million2025-06
Oklahoma Association of Conservation Districts Incorporate501(c)(3)1973$2.4 million$767,4592024-12
Oklahoma City Beautiful Inc501(c)(3)1970$889,369$585,2002025-12
Keep Oklahoma Beautiful Inc501(c)(3)1966$469,018$132,7072025-06
Oklahoma Energy Education Foundation501(c)(3)2006$347,340$5.3 million2024-12
Oklahoma Sustainability Network Association501(c)(3)2002$200,000$121,2862024-12
Conservation Coalition of Oklahoma501(c)(4)2013$118,400$76,5822025-12
Kirkpatrick Policy Group Inc501(c)(4)2018$81,276$9,1252025-12
The Greater Oklahoma City Parks and Trails Foundation Inc501(c)(3)2007$56,459$107,1332024-12
Capital Association of Professional Division Order Analysts501(c)(3)2014$0$02025-12
Cdots Institute for Innovation & Ec Onomic Growth Inc501(c)(3)2026$0$02025-12
Central Oklahoma Stormwater Alliance Inc501(c)(3)2022$0$02026-06
Central Park Community Garden Inc501(c)(3)2022$0$02023-12
Earth Rebirth501(c)(3)2024$0$02025-12
Friends of Blue Thumb Inc501(c)(3)2014$0$02026-06
Friends of Will Rogers Gardens Foundation501(c)(3)2019$0$02025-12
Garden Lakes Wetlands Conservancyinc501(c)(3)2007$0$02025-12
Green Connections Inc501(c)(3)1996$0$02025-08
Green It Foundation Inc501(c)(3)2022$0$02024-12
Lillian Timber Farms Inc501(c)(3)2020$0$02025-12
Mission503 Inc501(c)(4)2021$0$02025-12
North America Telecommunications Damage Prevention Council Inc501(c)(6)2026$0$02026-02
North American Wood Ape Conservancy501(c)(3)2007$0$02025-12
Oklahoma Asssociation for Environmental Education501(c)(3)1997$0$02024-12
Oklahoma City National Pan Hellenic Council501(c)(3)2025
Oklahoma Clean Lakes Association501(c)(3)2015$0$02025-12
Oklahoma Climbers Coalition501(c)(3)2026$0$02025-12
Oklahoma Compost and Sustainability Association501(c)(3)2022$0$02025-12
Oklahoma County Master Gardeners Association501(c)(3)2022$0$02025-12
Oklahoma Grazing Lands Coalition Inc501(c)(3)2001$0$02025-09
Oklahoma Green Schools Program Inc501(c)(3)2012$0$02024-12
Oklahoma Pastel Society501(c)(3)2016$0$02025-12
Shartel Boulevard Development Authority Inc501(c)(3)2001$0$02025-12
United Founders Neighborhood Foundation Inc501(c)(3)2019$0$02025-12
Watershed Sustainability Alliance Inc501(c)(3)2025$0$02024-12
Wichita Mountains Climbers Coalition Inc501(c)(3)2022$0$02025-12

Other causes in Oklahoma City, OK

Every nonprofit in Oklahoma City, OK · 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.