- Dignity Health AZ General Hospital Emergency Room - Chandler
- Dignity Health AZ General Hospital Emergency Room - Mesa
- Dignity Health Group
- Dillard's 448
- Dimella Shaffer Associates Inc.
- DINEX
- Dining Management Resources, Inc.
- DinnerReview.com
- Diocese of Tucson
- DIOMED
- Diplomat Specialty Pharmacy
- Direct Feedback
- Direct Marketing Concepts
- Direct Selling Association
- Direct Supply Healthcare Equipment
- DirectMail.com
- Director of New Jersey
- Directorate of Maintenance
- Disabled American Veterans
- Disaster Recovery Institute International
- Discover Albany
- Discover Card Corporate Office
- Discover Financial
- Discover Financial Services
- Discover Long Island
- Discover Newport
- Discover Puerto Rico
- Distilled Spirits Council of the United States
- District #1Greenlee County, Arizona
- District #4
- District of Columbia Area Health Education Center
- District of Columbia Primary Care Association
- Division For Early Childhood
- Dixie Regional Medical Center
- Dixie State College
- DM Services, Inc.
- Do-Co Ceramics
- Docs Against Donor Disparities
- Doctor's Center Manati
- Doctor's Hospital at Renaissance
- Doctors Community Hospital
- Doctors Hospital
- Doctors Hospital - OhioHealth
- Doctors Hospital of Augusta
- Doctors Hospital of Laredo
- Doctors Hospital of Sarasota
- Doctors Medical Center
- Doctors' Center Hospital Bayamon
- Doctors' Center Hospital Manati
- Doctors' Center Hospital San Fernando de la Carolina