- Diagnostic center
- Dental insurance agency
- Delivery Restaurant
- Display stand manufacturer
- Drug store
- Dry cleaner
- Drum store
- Dental school
- Door supplier
- Drainage service
- Direct mail advertising
- Diesel engine dealer
- Dry wall supply store
- Dry fruit store
- Design agency
- Dermatologist
- Divorce lawyer
- Driver's license office
- Drinking water dispenser
- Dyeworks