- Drilling equipment supplier
- Dental implants provider
- Dental laboratory
- Dry cleaner
- Dietitian
- Door supplier
- Door manufacturer
- DVD store
- Data entry service
- Decal supplier
- Direct mail advertising
- DJ supply store
- DJ service
- Drainage service
- Drum store
- Down home cooking restaurant
- Drive-in movie theater
- Dance school
- Debt collection agency
- Doll store