- Dental supply store
- District government office
- Delivery service
- Distribution service
- Dental
- Department of finance
- Dietitian
- Design agency
- District attorney
- Department of Public Safety
- Discount store
- Distance learning center
- Department of motor vehicles
- Data recovery service
- Demolition contractor
- DS Automobiles dealer
- Dock builder
- Door supplier
- Diesel engine dealer
- Dump truck dealer