| Norwood High School Scholarship Foundation IncCincinnati | Form 990 | $223,557FY2025 |
| Hamilton High School Boosters Association IncHamilton | Form 990 | $223,428FY2025 |
| Summer Work Experience in Law IncCincinnati | Form 990 | $223,422FY2024 |
| Tried & True Parenting IncMason | Form 990 | $222,934FY2025 |
| Wooster High School Music Parents AssocWooster | Form 990 | $222,842FY2025 |
| Wadsworth Band Boosters ClubWadsworth | Form 990 | $222,701FY2025 |
| Showcase America UnlimitedPickerington | Form 990 | $220,479FY2025 |
| Sidney Athletic Booster Group IncSidney | Form 990 | $220,360FY2025 |
| Lakeview Bulldog Boosters ClubCortland | Form 990 | $218,949FY2025 |
| Brunswick Athletic FoundationBrunswick | Form 990 | $217,952FY2025 |
| Natural Stone FoundationOberlin | Form 990 | $217,304FY2024 |
| Gahanna Lincoln Instrumental Music BoostersGahanna | Form 990 | $217,065FY2025 |
| Marion Local Flyers Athletic BoostersMaria Stein | Form 990 | $216,757FY2026 |
| Upper Arlington High School Parent Teacher OrganizationUpper Arlington | Form 990 | $216,001FY2025 |
| Ohio School Leadership FoundationColumbus | Form 990 | $215,482FY2025 |
| Health Disparities Collaborative of OhioColumbus | Form 990 | $215,115FY2025 |
| The Partnership for ExcellenceColumbus | Form 990 | $214,743FY2025 |
| Knu School of Medicine Alumni Association of North America IncPepper Pike | Form 990 | $214,475FY2024 |
| Green Wave Athletic BoostersGreenville | Form 990 | $213,626FY2025 |
| Cincinnati Islamic School SgoMason | Form 990 | $212,483FY2025 |
| Women of Color FoundationCleveland | Form 990 | $212,445FY2024 |
| Plain Local Schools FoundationCanton | Form 990 | $212,125FY2025 |
| Teaching Cleveland FoundationUniversity Heights | Form 990 | $212,072FY2024 |
| Colerain School District Booster AssociationCincinnati | Form 990 | $211,205FY2025 |
| Springfield Local Athletic Boosters IncNew Middletown | Form 990 | $210,095FY2024 |
| Dover City Schools Education Foundation IncDover | Form 990 | $209,555FY2024 |
| Mason Schools FoundationMason | Form 990 | $209,252FY2025 |
| Bright Star Books IncAkron | Form 990 | $208,817FY2024 |
| Entrepreneurs OrganizationCincinnati | Form 990 | $208,603FY2025 |
| Green Band BoostersGreen | Form 990 | $207,939FY2026 |
| Joel Cornette Foundation IncCincinnati | Form 990 | $207,153FY2024 |
| Geauga County Library FoundationChardon | Form 990 | $207,000FY2025 |
| Ohio School Health Services AssociationWorthington | Form 990 | $206,676FY2025 |
| Westerville North Music Boosters IncWesterville | Form 990 | $206,587FY2026 |
| Cloverleaf All Sports BoostersSeville | Form 990 | $206,052FY2025 |
| International Association for Conflict Management NFPOttawa Hills | Form 990 | $204,131FY2024 |
| Greater Cincinnati Library ConsortiumCincinnati | Form 990 | $203,100FY2023 |
| Shaker Heights Council of Parent Teachers Organizations IncShaker Heights | Form 990 | $202,971FY2025 |
| Maumee City Schools FoundationMaumee | Form 990 | $201,948FY2024 |
| Troy Music Booster IncTroy | Form 990 | $201,723FY2025 |
| Super SeedsCincinnati | Form 990 | $201,569FY2025 |
| Raising Hope Ministries IncMansfield | Form 990 | $200,141FY2024 |
| Handshake Columbus IncColumbus | Form 990 | $200,044FY2024 |
| Colonel Crawford Eagles All Sports Boosters ClubCrestline | Form 990 | $199,690FY2024 |
| Ohio Council of Teachers of MathematicsColumbus | Form 990-EZ | $199,568FY2026 |
| Fremont Ross Athletic Boosters Association IncFremont | Form 990 | $198,961FY2025 |
| Hudson High School Music AssociationHudson | Form 990 | $198,930FY2025 |
| Hooper Collective IncCincinnati | Form 990-EZ | $197,743FY2025 |
| American Freedom Liberty Foundation IncWest Chester | Form 990-EZ | $197,457FY2025 |
| Clark County Literacy CoalitionSpringfield | Form 990-EZ | $197,451FY2025 |