- Firelands Regional Medical Center
- Firestone
- Fisher-Titus Medical Center
- Floyd Browne Associates, Inc.
- Focus Health Care of Ohio
- Food Town Supermarkets
- Fort Hamilton Hospital
- Fostoria Community Hospital
- Franklin Monument Co.
- Fulton County Health Center
- Furniture Bank of Central Ohio
- Galion Community Hospital
- GE Consumer Finance
- General Electric
- General Mills Inc. - Wellston, Ohio
- General Motors Powertrain Division
- Genesis HealthCare System
- Good Samaritan Hospital
- Good Samaritan Hospital, Family Practice Center
- Good Shepherd Home
- Grady Memorial Hospital
- Grand Lake Health System
- Grandview Medical Center
- Grange Insurance
- Grant Medical Center - Ohio Health System
- Greater Akron Chamber
- Greater Cleveland Convention and Visitors Bureau
- Greater Columbus Chamber of Commerce
- Greater Columbus Convention and Visitors Bureau
- Greater Dayton Area Hospital Association GDAHA)
- Greater Toledo Convention and Visitors Bureau
- H.L.W. Fast Track Inc.
- Hamilton County
- Hampton Inn Cincinnati-Northwest-Fairfield
- Hampton Inn Cleveland Downtown
- Hampton Inn Cleveland-Westlake
- Hampton Inn Columbus, Dublin OH
- Hampton Inn, Massillon
- Hart Associates
- HCR ManorCare
- Health Partners of Western Ohio
- Heidelberg Distributing Company
- Henry County Hospital
- Highland District Hospital
- Hilton Cincinnati Netherland Plaza
- Hipple Cancer Research Center
- Holiday Inn and Suites Cincinnati-Eastgate I-275E)
- Holiday Inn Columbus I-270-Worthington Area, Columbus, OH
- Holiday Inn Select, Strongsville, OH
- Holiday Inn, Fairborn I-675, Fairborn, OH