- County Corp
- Courtyard by Marriott Cleveland Willoughby
- Cox Publishing
- Crowne Plaza Dayton
- CSXT
- CTI
- Cuyahoga Community College
- Cuyahoga County Office of Health and Human Services
- Daily Grind
- Daimler Chrysler Toledo Machining
- Dan Pinger Public Relations
- Darke County United Way, Inc.
- DataTrak International, Inc.
- Dayton African American Chamber of Commence
- Dayton Bombers
- Dayton Children's Hospital
- Dayton Heart Hospital
- Dayton Montgomery County Convention and Visitors Bureau, Inc.
- Dayton North - Fairfield Inn by Marriott, OH
- Dayton Rotary
- Deesyremei' Enterprise
- Diebold, Inc
- DietMaster Systems, Inc.
- Doctors Hospital - OhioHealth
- Donate Life Ohio
- Doubletree Guest Suites Hotel, Sharonville, OH
- DTR Industries
- Dublin CVB
- Dublin Methodist Hospital
- Dunbar Health and Rehab Center
- East Ohio Regional Hospital
- Edward Howard and Company
- Electrical Workers IBEW 306
- Electrical Workers IBEW 38
- Emerson Climate Controls
- Enterprise
- Evans and Groff Funeral Home
- EvenFlo
- Eversight
- Exhibit Concepts
- Eye Centers of Ohio
- Fairfield Inn and Suites Akron South
- Fairfield Inn and Suites Columbus West-Hilliard
- Fairfield Medical Center
- Fairview Regional Medical Center
- Fayette County Memorial Hospital
- Federated Department Stores - Corporate Office
- Fifth Third Bank of Toledo
- Fifth Third Bank-Dayton-Toledo
- Findlay Hancock CVB