- Dairy Farms, Royersford
- Dance Companies, Royersford
- Day Spas, Royersford
- Deck Cleaning & Restoration, Royersford - Clean & Seal Decks, Patios, Fences, etc
- Deck, Patio & Gazebo Design, Building, Cleaning, Repair & Maintenance Contractors, Royersford
- Decorating & Designing Services, Royersford
- Delicatessen Restaurants, Royersford
- Denomination, Non-Denominational, Etcetera, Royersford
- Dental Bonding & Cosmetic Dentistry, Royersford - Cosmetic Dentist & Tooth Bonding
- Dental Hygienists, Royersford
- Dentists, Royersford
- Department Stores, Royersford
- Dermatologists, Royersford - Skin Doctors, Physicians & Surgeons (Dermatology)
- Developmental Children Services, Royersford
- Dialysis Clinics, Royersford - Kidney Dialysis Centers
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- Digital Imaging Photographers, Royersford
- Diner Restaurants, Royersford
- Direct Mail Advertising, Royersford
- Direct Mail Advertising Services, Royersford
- Disc Jockeys, Royersford
- Discount Stores, Royersford - Clothing, Grocery, Furniture, Etc
- Divorce & Family Law Attorneys & Lawyers, Royersford
- Doctors, Physicians & Surgeons, Royersford
- Donuts, Royersford
- Drinking Establishments, Royersford
- Dry Cleaning & Laundry, Royersford - Dry Cleaners
- Dryers Sales, Service & Repair, Royersford - Gas & Electric
- Durable & Non Durable Goods & Products, Royersford
- Durable Goods & Products, Royersford
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