| Edmond Land Conservancy IncEdmond | Form 990-N | No figure |
| Twin Bridges Park PartnersFairland | Form 990-N | No figure |
| Capital Association of Professional Division Order AnalystsOklahoma City | Form 990-N | No figure |
| Tulsa Area Daylily SocietyTulsa | Form 990-N | No figure |
| Lower Mountain Fork River FoundationBroken Bow | Form 990-N | No figure |
| Tishomingo Refuge Ecology and Education SocietyTishomingo | Form 990-N | No figure |
| Oklahoma Pastel SocietyOklahoma City | Form 990-N | No figure |
| Restoration Collective IncTulsa | Form 990-N | No figure |
| Power of Partial Improvements FoundationTulsa | Form 990-N | No figure |
| Durant Trails and Open SpaceDurant | Form 990-N | No figure |
| Oklahoma Gardeners AssociationBethany | Form 990-N | No figure |
| Tulsa Nature Explore IncTulsa | Form 990-N | No figure |
| South Asian Student AssociationNorman | Form 990-N | No figure |
| Kiamichi River Legacy AllianceAntlers | Form 990-N | No figure |
| Water Industry Advancement and Sustainability InstituteDuncan | Form 990-N | No figure |
| Great Plains Land and Wildlife Conservation CorporationTulsa | Form 990-N | No figure |
| Advocates for Blueriver FoundationTishomingo | Form 990-N | No figure |
| Lake of the Arbuckles Watershed Association IncSulphur | Form 990-N | No figure |
| Ugly Mugz Foundation IncClinton | Form 990-N | No figure |
| Mosaic Gardens SyndicateTulsa | Form 990-N | No figure |
| United Founders Neighborhood Foundation IncOklahoma City | Form 990-N | No figure |
| Friends of Will Rogers Gardens FoundationOklahoma City | Form 990-N | No figure |
| Color Duncan BeautifulDuncan | Form 990-N | No figure |
| Lillian Timber Farms IncOklahoma City | Form 990-N | No figure |
| NE Okc Community & Cultural Center GardenOklahoma City | Form 990-N | No figure |
| North American Trail Education IncClinton | Form 990-N | No figure |
| Central Oklahoma Stormwater Alliance IncOklahoma City | Form 990-N | No figure |
| Oklahoma Compost and Sustainability AssociationOklahoma City | Form 990-N | No figure |
| Triple F Outdoors IncOchelata | Form 990-N | No figure |
| The Orphan Well Cooperative IncTulsa | Form 990-N | No figure |
| Green It Foundation IncOklahoma City | Form 990-N | No figure |
| Arbuckle Land Conservancy IncShawnee | Form 990-N | No figure |
| Green Country Conservation AllianceEucha | Form 990-N | No figure |
| Tulsa Area Arkansas River AdvocatesTulsa | Form 990-N | No figure |
| Environmental Innovators of America IncEdmond | Form 990-N | No figure |
| Central Park Community Garden IncOklahoma City | Form 990-N | No figure |
| Oklahoma Climbers CoalitionOklahoma City | Form 990-N | No figure |
| Wichita Mountains Climbers Coalition IncOklahoma City | Form 990-N | No figure |
| Vertical Solutions IncLawton | Form 990-N | No figure |
| Oklahoma Ecology Project IncTulsa | Form 990-N | No figure |
| New Hope Cemetery FundWestville | Form 990-N | No figure |
| Rogue Conservation CorpTulsa | Form 990-N | No figure |
| Durant Sustainability Coalition IncDurant | Form 990-N | No figure |
| Oklahoma Daffodil and Tulip SocietyBlanchard | Form 990-N | No figure |
| Reformed Solutions IncDuncan | Form 990-N | No figure |
| Wilburton Chamber Foundation IncWilburton | Form 990-N | No figure |
| Oklahoma City National Pan Hellenic CouncilOklahoma City | Form 990-N | No figure |
| Keep Hochatown Beautiful IncBroken Bow | Form 990-N | No figure |
| Twin Rivers Prescribed Burn AssnOkemah | Form 990-N | No figure |
| CNG Initiative IncArdmore | Form 990-N | No figure |