| dairy farms | dairy products | dance companies |
| dance school | dance studios | data preparation |
| data processing | delicatessen | dental clinic |
| dental equipment | dental laboratory | dental supplies |
| dentist | department stores | depository institutions |
| detergent | die makers | diet food |
| direct mail advertising services | direct selling establishments | divorce attorney |
| divorce lawyers | doctors | draperies |
| drilling contractors | driving school | drug |
| drugstore | dry cleaners | drywall |
| dyer | dyer industrial |
