- DaimlerChrysler
- Dairyland Power Cooperative
- Dakota Lions Sight and Health
- Dale E. Fell, MD, PA
- Dale Medical Center
- Dallam-Hartley Counties United Way, Inc.
- Dallas Convention and Visitors Bureau
- Dallas County Hospital
- Dallas County Medical Center
- Dallas County Medical Society
- Dallas Nephrology Associates
- Dallas Nephrology Associates
- Dallas Retirement Village
- Dallas-Ft. Worth Airport Marriott South
- Dan Pinger Public Relations
- Dan Rice Days
- Danbury Hospital
- DandA Building Services Inc.
- Dane County Government
- Daniel Corporation
- Dans Food
- Danzas AEI Intercontinental
- Darden Restaurants, Inc.
- Darke County United Way, Inc.
- DARON
- Dartmouth-Hitchcock Medical Center
- Data and Marketing Association
- Data Control, LLC
- Data Futures, Inc.
- Data Solutions Corporation
- Data Stream
- Data Transmission Network Corp.
- DataCert
- DataCom Sciences, Inc.
- Datalabs Worldwide
- Datascope
- DataTrak International, Inc.
- Datex Ohmeda
- Daughters of Charity Services of New Orleans
- Dave Steel Company, Inc.
- Dave Timmons - Motivational Speaker
- David E. Otwell Company Inc.
- David Green
- David Koether Photography
- David Leadbetter Golf Academy
- David R. Evans and Associates
- Davidson College
- Davies County Fiscal Court
- Davila Plumbing and Construction
- Davis County