| Almost Perfect FoundationLisbon | Form 990-EZ | $53,225FY2025 |
| Centerville Primary Village Southparent Teacher OrganizationCenterville | Form 990-EZ | $53,035FY2025 |
| PTA Ohio CongressSolon | Form 990-EZ | $53,018FY2026 |
| Milton-Union Senior Citizens & Community Club IncWest Milton | Form 990-EZ | $52,971FY2025 |
| Catlantis Cat Sanctuary and Rescue IncEast Liverpool | Form 990-EZ | $52,875FY2025 |
| Lake Erie Silver Dolphins Booster Club IncChesterland | Form 990 | $52,822FY2025 |
| Roofers Local 88 Apprenticeship FundCanton | Form 990-EZ | $52,795FY2025 |
| Affiliated Council-Center for Educational Special Serv of Oh IncFairfield Township | Form 990 | $52,488FY2025 |
| The Cincinnati Astronomical SocietyCleves | Form 990 | $52,467FY2025 |
| Meigs County Farmers Market LLCPomeroy | Form 990-EZ | $52,348FY2025 |
| Teays Valley Athletic Booster ClubAshville | Form 990 | $52,340FY2025 |
| National Autism AssociationSomerset | Form 990-EZ | $52,226FY2025 |
| Spirit BasketballXenia | Form 990-EZ | $52,210FY2025 |
| Parent Booster USA IncTwinsburg | Form 990-EZ | $52,200FY2026 |
| Home for Good Re-Entry Resource Referral CenterYoungstown | Form 990-EZ | $52,099FY2025 |
| Nickel Plate Road Historical &Bradford | Form 990-EZ | $52,038FY2025 |
| Cambridge Rotary Foundation IncCambridge | Form 990 | $51,874FY2024 |
| PTA Ohio CongressLiberty Township | Form 990-EZ | $51,477FY2025 |
| Urban Neighborhood Development CorporationAkron | Form 990-EZ | $51,279FY2025 |
| Future Farmers of America State Associations & Local ChapterPerrysville | Form 990-EZ | $50,921FY2024 |
| Archaeological Society of OhioDelaware | Form 990 | $50,806FY2025 |
| Clermont Mercy Hospital Guild IncBatavia | Form 990-EZ | $50,715FY2025 |
| Fayette County Historical SocietyWashington Court House | Form 990-EZ | $50,512FY2025 |
| Camp Gideon of Northeastern OhioDamascus | Form 990-EZ | $50,301FY2025 |
| Wreath Adventures LLCCoolville | Form 990-N | No figure |
| Kiwanic Civic CenterNew Franklin | Form 990-N | No figure |
| Garaway Released Time Religious Education CommitteeSugarcreek | Form 990-N | No figure |
| Business for Peace Community Development FoundationBlacklick | Form 990-N | No figure |
| PTA Ohio CongressCincinnati | Form 990-EZ | $48,732FY2025 |
| Wadsworth Older Adults FoundationWadsworth | Form 990-EZ | $48,607FY2024 |
| Inter Lake Yachtsmens FundLancaster | Form 990 | $48,464FY2024 |
| Ahs Football Parents OrganizationAshland | Form 990-EZ | $48,330FY2025 |
| Future Farmers of America State Associations & Local ChapterPettisville | Form 990-EZ | $48,160FY2025 |
| Dublin Library AssociationDublin | Form 990-EZ | $47,989FY2025 |
| Zanesville Community TheatreZanesville | Form 990-N | No figure |
| Uniontown Community Park AssociationUniontown | Form 990 | $47,758FY2025 |
| Rock Hill National Little LeaguePedro | Form 990-EZ | $47,750FY2025 |
| Association of Fundraising ProfessionalsDayton | Form 990-N | No figure |
| Williams County Genealogical SocietyBryan | Form 990-N | No figure |
| Hilliard Girls Softball AssociationHilliard | Form 990-N | No figure |
| PTA Ohio CongressMilford | Form 990-EZ | $46,810FY2025 |
| Lakeside High School Athletic Boosters IncorporatedAshtabula | Form 990-EZ | $46,769FY2026 |
| Plain Local Instrumental Music Patrons Association IncCanton | Form 990-EZ | $46,768FY2026 |
| Student Christian Foundation of Ohio IncDublin | Form 990-N | No figure |
| Westerville Community Concert BandWesterville | Form 990-N | No figure |
| Miami Valley Crime Stoppers IncDayton | Form 990-N | No figure |
| University of Cincinnati Medical Center Auxiliary IncCincinnati | Form 990 | $46,146FY2025 |
| Ilankai Thamil Sangam Inc an Association of Tamils of Sri LankaDublin | Form 990-N | No figure |
| National Association of Charitable Gift PlannersCincinnati | Form 990-N | No figure |
| The New Athens Fire CompanyNew Athens | Form 990-EZ | $45,239FY2024 |