| International Order of the Rainbow GirlsGuthrie | Form 990 | $182,954FY2025 |
| Bartlesville Art AssociationBartlesville | Form 990-EZ | $182,502FY2025 |
| Abolitionists Rising IncNorman | Form 990-EZ | $181,612FY2023 |
| Ponca City Art Association IncPonca City | Form 990 | $175,612FY2024 |
| Christ for Me IncTahlequah | Form 990-EZ | $175,474FY2025 |
| Oklahoma Engineering Foundation IncOklahoma City | Form 990 | $169,891FY2024 |
| Oklahoma City Chapter of the American Marketing AssociationOklahoma City | Form 990-EZ | $167,203FY2024 |
| Chisholm Parent-Teacher OrganizatioEdmond | Form 990 | $165,689FY2025 |
| Called to CareOklahoma City | Form 990-EZ | $165,584FY2025 |
| Kids Incorporated of Guymon OklahomaGuymon | Form 990-EZ | $165,129FY2025 |
| Metro Technology Centers Foundation IncOklahoma City | Form 990-EZ | $164,573FY2024 |
| Strang Community Fire Department IncStrang | Form 990 | $163,630FY2025 |
| Pottwatomie County Historical SocietyShawnee | Form 990 | $161,257FY2025 |
| Northeastern Campus Christian FellowshipTahlequah | Form 990-EZ | $161,038FY2025 |
| Allys House IncNorman | Form 990-EZ | $159,187FY2024 |
| K-Life of Bartlesville IncBartlesville | Form 990 | $156,773FY2025 |
| Kingfisher Meals on Wheels IncKingfisher | Form 990-EZ | $154,355FY2025 |
| Parent Booster USA IncOklahoma City | Form 990-EZ | $151,073FY2026 |
| Society of American Military EngineersTulsa | Form 990-EZ | $150,335FY2024 |
| Oglesby Civil Defense Volunteer Fire DepartmentRamona | Form 990-EZ | $149,172FY2025 |
| Elk City Help IncElk City | Form 990-EZ | $148,357FY2024 |
| Tulsa Kiwanis Club Foundation IncTulsa | Form 990 | $146,288FY2025 |
| Len Mink Ministries IncorporatedTulsa | Form 990-EZ | $144,034FY2024 |
| Holiness in MexicoPauls Valley | Form 990-EZ | $143,164FY2025 |
| Oklahoma Safety Center IncTulsa | Form 990-EZ | $137,629FY2026 |
| Cross Trail Outfitters IncOkemah | Form 990-EZ | $136,451FY2024 |
| Meridian Technology Center FoundationStillwater | Form 990 | $133,146FY2025 |
| Parent Booster USA IncNorman | Form 990-EZ | $130,952FY2026 |
| Parent Booster USA IncDurant | Form 990-EZ | $130,862FY2026 |
| Oklahoma Elks Major Project IncAda | Form 990-EZ | $126,593FY2025 |
| Preservation Oklahoma IncOklahoma City | Form 990-EZ | $125,042FY2025 |
| Mayes County Historical SocietyPryor | Form 990-EZ | $123,520FY2026 |
| Kingfisher Educational FoundationKingfisher | Form 990 | $123,340FY2025 |
| Owasso Rams Track & Cross Country Booster Club IncOwasso | Form 990-EZ | $123,115FY2025 |
| Woodward Api Scholarship Fund IncWoodward | Form 990-EZ | $122,668FY2026 |
| National Kappa Kappa Iota IncTulsa | Form 990 | $121,700FY2025 |
| Humane Society of Lawton Comanche CountyLawton | Form 990-EZ | $121,236FY2025 |
| Friends of the Lawton Public LibraryLawton | Form 990 | $118,746FY2025 |
| The United Fund of Perry Oklahoma IncorporatedPerry | Form 990-EZ | $116,826FY2025 |
| Love County Health Center Foundation of Love County OklahomaMarietta | Form 990-EZ | $116,049FY2025 |
| Oklahoma Society of Certified Public Accountants Educational FDNOklahoma City | Form 990 | $114,952FY2025 |
| PTA Oklahoma CongressTulsa | Form 990-EZ | $112,945FY2026 |
| Institute of Management Accountants IncTulsa | Form 990-EZ | $112,122FY2025 |
| Parent Booster USA IncTulsa | Form 990-EZ | $111,941FY2025 |
| PTA Oklahoma CongressNorman | Form 990-EZ | $111,616FY2026 |
| Old Greer County Museum & Hall of Fame IncMangum | Form 990-EZ | $111,204FY2024 |
| Sapulpa Historical Society IncSapulpa | Form 990-EZ | $111,090FY2024 |
| Plainview of Ardmore Public School Foundation IncArdmore | Form 990 | $110,941FY2025 |
| Freedom Fire Ministry IncCalumet | Form 990-EZ | $110,013FY2025 |
| Lariat Creek Christian Camp IncGeary | Form 990 | $108,242FY2024 |