- Vacuum Cleaner Repair & Service, Rockville
- Vacuum Cleaners, Rockville
- Vascular Surgeons, Rockville - Blood Vessel Surgeons, Doctors & Physicians (Vascular Surgery)
- Vegetable Shippers, Rockville
- Vehicle & Trailer Storage, Rockville - Auto & Truck
- Vehicle Inspection, Rockville
- Vehicle Registration Service, Rockville
- Vending Machines, Rockville
- Veterans & Military Organizations, Rockville
- Veterinarians, Rockville - Veterinary Services
- Vibrators Industrial, Rockville
- Video Conferencing, Rockville
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- Video Games Supplies & Parts, Rockville
- Video Tapes & Discs Stores, Rockville
- Video Tapes Duplication & Transfer Services, Rockville
- Video Tapes Duplication Service Commercial, Rockville
- Video Tapes, DVDs & Video Games - Rental & Sales, Rockville
- Video, Television And Movies, Rockville
- Vietnamese Restaurants, Rockville
- Vinyl Fences, Rockville
- Vinyl Flooring, Rockville
- Vision Insurance, Rockville
- Vitamin, Supplements, Herbs, Diet & Health Food Stores, Rockville
- Voice Mail Service, System & Equipment, Rockville - Answering Machine
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