• dance companies
• dance instruction
• dancing instruction
• data processing services
• delicatessens
• dentists
• department stores
• dermatologists
• desktop publishing
• developmental health services
• diaper services
• direct mail advertising
• directory and guide advertising
• disc jockeys
• discount stores
• diving
• doughnuts
• driving instruction
• drug abuse addiction information and treatment
• drug stores
• drug stores and pharmacies
• dry cleaners and laundries
• dry wall contractors