| John Mack Oboe CampMentor | Form 990-N | No figure |
| Elmore Historical Society IncElmore | Form 990-N | No figure |
| Old House Guild of Sandusky OhioSandusky | Form 990-N | No figure |
| Gallery Group IncWestlake | Form 990-N | No figure |
| Darke County Civic Theater IncGreenville | Form 990-N | No figure |
| Lake County Chapter of the Archaeol Soc of Oh Ind Mus of Lake Co OhioMentor | Form 990-N | No figure |
| Toledo Mobile Radio Association IncToledo | Form 990-N | No figure |
| Hardin Northern Band Boosters IncDola | Form 990-N | No figure |
| The Huron Historical Society IncHuron | Form 990-N | No figure |
| Childrens Theatre Foundation IncLexington | Form 990-N | No figure |
| Winesburg Historical SocietyWinesburg | Form 990-N | No figure |
| Summit County Sports Hall of FameHudson | Form 990-N | No figure |
| Science Hill Historical Society IncAlliance | Form 990-N | No figure |
| Mohawk Music BoostersSycamore | Form 990-N | No figure |
| Erie County Historical SocietySandusky | Form 990-N | No figure |
| Ottawa County Historical SocietyPort Clinton | Form 990-N | No figure |
| Wayne County Performing Arts CouncilWooster | Form 990-N | No figure |
| Middlefield Historical Society IncMiddlefield | Form 990-N | No figure |
| Friends of Norwalk Public LibraryNorwalk | Form 990-N | No figure |
| Independence Historical Society IncIndependence | Form 990-N | No figure |
| Cleveland Heights Heritage CenterCleveland Heights | Form 990-N | No figure |
| Omar Chapel Association IncAttica | Form 990-N | No figure |
| Constitution Day Committee CorporationLouisville | Form 990-N | No figure |
| North Fairfield Firelands Historical AssociationNorth Fairfield | Form 990-N | No figure |
| Euclid Historical SocietyEuclid | Form 990-N | No figure |
| Seville Historical Society IncSeville | Form 990-N | No figure |
| Avon Lake Womens ChorusSheffield Village | Form 990-N | No figure |
| Black Studies & Library AssociationFindlay | Form 990-N | No figure |
| National Collage Society IncHudson | Form 990-N | No figure |
| Jefferson Depot IncJefferson | Form 990-N | No figure |
| Plymouth Area Historical SocietyPlymouth | Form 990-N | No figure |
| Harrison County Genealogical Society IncCadiz | Form 990-N | No figure |
| Hubbard Historical SocietyHubbard | Form 990-N | No figure |
| Belden Historical SocietyGrafton | Form 990-N | No figure |
| Holmes County Chapter of Ohio Genealogical SocietyMillersburg | Form 990-N | No figure |
| Division Four Mid-Central Region Natl Model Railroad Assoc IncWadsworth | Form 990-N | No figure |
| Ohio Decoy Collectors and Carvers AssociationNorth Jackson | Form 990-N | No figure |
| Brunswick High School Choral Music BoostersBrunswick | Form 990-N | No figure |
| The Old Brick Historical SocietyOrwell | Form 990-N | No figure |
| Westfield Historic SocietyWestfield Center | Form 990-N | No figure |
| Heritage Society of Erie CountySandusky | Form 990-N | No figure |
| Butler Clear Fork Valley Historical SocietyButler | Form 990-N | No figure |
| The Liberty Center Historical Society IncLiberty Center | Form 990-N | No figure |
| Greater Akron Baseball Hall of Fame IncAkron | Form 990-N | No figure |
| The Gnadenhutten Historical Society IncorporatedGnadenhutten | Form 990-N | No figure |
| Shaker Heights Interest GroupShaker Heights | Form 990-N | No figure |
| Jefferson County Chapter of the Ohio Genealogical SocietySteubenville | Form 990-N | No figure |
| EarlyjasBerea | Form 990-N | No figure |
| Oakland Center for the Arts IncWarren | Form 990-N | No figure |
| Forest Hill Historic Preservation SocietyCleveland Heights | Form 990-N | No figure |