| Parent Booster USA IncBartlesville | Form 990-EZ | $32,178FY2026 |
| Greater Oklahoma City Hispanic Chamber of Commerce FoundationOklahoma City | Form 990-N | No figure |
| Perry Band Booster AssociationPerry | Form 990-EZ | $31,839FY2025 |
| Parent Booster USA IncMoore | Form 990-N | No figure |
| Friends of the Mustang Public LibraryMustang | Form 990-N | No figure |
| Oklahoma Latino Legislative Caucus IncOklahoma City | Form 990-N | No figure |
| Queerlit Collective IncTulsa | Form 990-N | No figure |
| South Central Modern Language AssociationNorman | Form 990-N | No figure |
| Classen High School Alumni Association of Oklahoma City OklahOklahoma City | Form 990-N | No figure |
| Parent Booster USA IncTulsa | Form 990-EZ | $27,075FY2025 |
| Talon Cyber LeagueTulsa | Form 990-N | No figure |
| Friends of the Norman LibraryNorman | Form 990-N | No figure |
| Legends FoundationTulsa | Form 990-N | No figure |
| Chisholm Band Boosters IncEnid | Form 990-EZ | $25,680FY2025 |
| Stone Canyon Elementary PTOOwasso | Form 990-N | No figure |
| Oga FoundationEdmond | Form 990-N | No figure |
| Riverwood Elementary SchoolMustang | Form 990-N | No figure |
| Parent Booster USA IncEdmond | Form 990-EZ | $24,363FY2026 |
| National Weather Association FoundationNorman | Form 990-N | No figure |
| Antlers Band BoostersAntlers | Form 990-EZ | $24,119FY2025 |
| Creative Oklahoma IncOklahoma City | Form 990-N | No figure |
| Bridge Creek PTOBlanchard | Form 990-EZ | $22,137FY2026 |
| Charles Haskell Elementary PTO IncEdmond | Form 990-N | No figure |
| Marlow Alumni Association IncMarlow | Form 990-N | No figure |
| Hilldale Elementary Parent Teacher OrganizationMuskogee | Form 990-EZ | $18,969FY2026 |
| Forming Lives IncNorman | Form 990-N | No figure |
| Childrens MontageDuncan | Form 990-N | No figure |
| Orvis Risner PTAEdmond | Form 990-N | No figure |
| Langston University National Alumni Association IncOklahoma City | Form 990-N | No figure |
| Impressions Academy of Beauty IncLawton | Form 990-N | No figure |
| Mustang Elementary PtsoMustang | Form 990-EZ | $16,480FY2025 |
| Oklahomans for Responsible Transportation FoundationNorman | Form 990-N | No figure |
| Oklahoma Scholastic EsportsClaremore | Form 990-N | No figure |
| Flourish Mountains Hope Alliance IncOklahoma City | Form 990-EZ | $14,400FY2024 |
| Association of Educators for Christian Homeschools of OklahomaNewalla | Form 990-N | No figure |
| Trailblazers Homeschool AssociationNorman | Form 990-N | No figure |
| United States Field Artillery Association Foundation IncFort Sill | Form 990-N | No figure |
| Clinton Public Schools Parent Teacher Organization IncClinton | Form 990-N | No figure |
| Norman Ffa Booster ClubNorman | Form 990-N | No figure |
| Lovewell Collective IncTulsa | Form 990-N | No figure |
| Tulsa Pop Kids IncBroken Arrow | Form 990-N | No figure |
| Hopenid IncorporatedEnid | Form 990-N | No figure |
| Disability Resources Educational Advocacy MotivationSkiatook | Form 990-N | No figure |
| Cushing Chamber Foundation for Progress IncCushing | Form 990-N | No figure |
| Purcell Ag BoosterPurcell | Form 990-N | No figure |
| Langston University Agricultural Alumni AssociationYukon | Form 990-N | No figure |
| Summit Parent ClubEdmond | Form 990-N | No figure |
| Verdigris Elementary PTOClaremore | Form 990-N | No figure |
| Palomino Horse Breeders of America Youth Scholarship & Education FundTulsa | Form 990-N | No figure |
| Deer Creek Football ParentorganizationOklahoma City | Form 990-N | No figure |