| Tri-Moraine Audubon SocietyLima | Form 990-N | No figure |
| Afternoon Garden ClubCanton | Form 990-N | No figure |
| Wildwood Garden ClubMentor | Form 990-N | No figure |
| People for Parks IncFremont | Form 990-N | No figure |
| Olmsted Falls Garden ClubOlmsted Township | Form 990-N | No figure |
| Science Alliance for Valuing the EnvironmentSylvania | Form 990-N | No figure |
| The Friends of the Crooked River IncAkron | Form 990-N | No figure |
| Chagrin Valley Herb SocietyChagrin Falls | Form 990-N | No figure |
| Oak Openings Region Conservancy IncHolland | Form 990-N | No figure |
| Four Square Block WatchYoungstown | Form 990-N | No figure |
| Loramie Watershed Association IncFort Loramie | Form 990-N | No figure |
| Salem Preservation SocietySalem | Form 990-N | No figure |
| Youngstown Area Tropical Fish SocietyYoungstown | Form 990-N | No figure |
| MRB Hydrologic Environment Research IncColumbiana | Form 990-N | No figure |
| Rieck Center for Habitat StudiesBowling Green | Form 990-N | No figure |
| Garden Club of Ohio IncNorth Canton | Form 990-N | No figure |
| Friends of Maumee Bay State ParkOregon | Form 990-N | No figure |
| Akron-Canton Bonsai SocietyTallmadge | Form 990-N | No figure |
| Avon Garden ClubAvon | Form 990-N | No figure |
| Friends of Harrison Lake State Park IncArchbold | Form 990-N | No figure |
| Citizens VisionCleveland | Form 990-N | No figure |
| West by the River Historic Improvement CorporationElyria | Form 990-N | No figure |
| Ohio Prairie AssociationSandusky | Form 990-N | No figure |
| Ottawa River Kleanup Association IncToledo | Form 990-N | No figure |
| Friends of Seneca County Park DistrictTiffin | Form 990-N | No figure |
| West Point Rod & Gun Club IncEast Liverpool | Form 990-N | No figure |
| Norma Johnson Conservation Center Foundation BoardNew Philadelphia | Form 990-N | No figure |
| Lowellville Parent Teacher OrganizationLowellville | Form 990-N | No figure |
| Friends of the RavinesColumbus | Form 990-N | No figure |
| Portage County Master GardenersRavenna | Form 990-N | No figure |
| Mission Oaks GardensZanesville | Form 990-N | No figure |
| Mid-America Orchid Congress IncCincinnati | Form 990-N | No figure |
| Master Gardeners of Cuyahoga County IncCleveland | Form 990-N | No figure |
| Sowing Communities IncCincinnati | Form 990-N | No figure |
| Citizens Climate Lobby Cleveland ChapterShaker Heights | Form 990-N | No figure |
| Portage River Association IncOak Harbor | Form 990-N | No figure |
| Linworth School Community GardenWorthington | Form 990-N | No figure |
| Aurica Community GardensCleveland | Form 990-N | No figure |
| Miller City Fish and Pond ConservationLeipsic | Form 990-N | No figure |
| Friends of Brunswick Parks IncBrunswick | Form 990-N | No figure |
| Even Cities Need TreesColumbus | Form 990-N | No figure |
| Preserve the Valley Gateway Community PartnershipAkron | Form 990-N | No figure |
| Canvas Wings IncGeorgetown | Form 990-N | No figure |
| Sustainable Mariemont IncCincinnati | Form 990-N | No figure |
| Turning Trash Into TriumphGarfield Heights | Form 990-N | No figure |
| Love Our Land OhioLoveland | Form 990-N | No figure |
| Ohio Land StewardshipConcord Township | Form 990-N | No figure |
| Green AllianceAlliance | Form 990-N | No figure |
| Sidestreams Foundation IncCincinnati | Form 990-N | No figure |
| Put-in-Bay Garden Club IncPut in Bay | Form 990-N | No figure |