- Design institute
- Diabetes equipment supplier
- Driving school
- Drilling equipment supplier
- Department for Regional Development
- Department of housing
- Diabetologist
- Dude ranch
- Dog breeder
- Donations center
- Drivers license training school
- DJ supply store
- Dress and tuxedo rental service
- Dance conservatory
- Distillery
- Doll restoration service
- Dog trainer
- Dye store
- Dating service
- Door manufacturer