- Dance conservatory
- Desalination plant
- Drum school
- Drum store
- Dynamometer supplier
- DJ supply store
- DS Automobiles dealer
- Driver and vehicle licensing agency
- Display stand manufacturer
- Decal supplier
- Drafting equipment supplier
- District attorney
- Display home centre
- Domestic airport
- Donations center
- Dyeworks
- Diaper service
- Department of housing
- Deck builder
- Dart supply store