- Bagels, Vernon Rockville
- Bail Bonds, Vernon Rockville
- Bakeries, Vernon Rockville
- Banking Attorneys & Lawyers, Vernon Rockville
- Banking Attorneys & Lawyers, Vernon Rockville
- Banking Lawyers & Attorneys, Vernon Rockville
- Banks, Vernon Rockville
- Banquet Halls, Vernon Rockville
- Banquet Halls, Reception Halls & Party Facilities, Vernon Rockville
- Baptist Churches, Vernon Rockville
- Barbecue Restaurants, Vernon Rockville
- Barbers, Vernon Rockville
- Bars, Vernon Rockville
- Basement Waterproofing - Waterproofing Contractors, Vernon Rockville - Foundation & Concrete Waterproofing
- Bathroom Accessories & Fixtures, Vernon Rockville - Bath Accessories, Vanity & Mirrors
- Bathroom Remodeling, Vernon Rockville - Bathroom Remodel & Planning Services
- Bathtubs & Sinks - Repair & Refinishing, Vernon Rockville - Bathtub Refinishing, Repair & Resurfacing
- Beauty Salons, Vernon Rockville
- Bedding & Linens Stores, Vernon Rockville - Bed Sheets, Quilts and Coverlets, Cushions, Pillows, Slipcovers & Bed & Table Linens
- Beer Taverns, Vernon Rockville
- Beverage Dispenser Supplies & Equipment , Vernon Rockville - Beverage Dispensing
- Beverage Stores, Vernon Rockville
- Bicycle Shops, Vernon Rockville - Road, Hybrid, Folding, BMX, Electric & Mountain Bikes Stores & Dealers
- Billiard & Pool Parlors, Vernon Rockville
- Bistros, Vernon Rockville
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- Bonds, Vernon Rockville
- Book Stores, Vernon Rockville
- Books, Magazines & Newspapers Stores, Vernon Rockville - Bookstores
- Bottled Gas, Lp Gas & Propane Dealers, Vernon Rockville
- Bowling Centers, Vernon Rockville
- Bowling Lane Equipment & Supplies, Vernon Rockville
- Breakfast Restaurants, Vernon Rockville
- Buffet Restaurants, Vernon Rockville
- Builders & Contractors, Vernon Rockville
- Builders & Contractors - More, Vernon Rockville
- Building & Home Inspection, Vernon Rockville - Real Estate, Building, Land & House Inspection Service
- Building & Property Maintenance & Services, Vernon Rockville
- Building Cleaning - Interior, Vernon Rockville - Cleaning Service
- Building Construction Consultants, Vernon Rockville - Construction Management & Consulting
- Building Design & Construction Consultants, Vernon Rockville
- Building Materials & Supplies, Vernon Rockville
- Building Site Preparation Contractors, Vernon Rockville - Land Preparation & Land Clearing
- Bus Rental & Charter Bus Service, Vernon Rockville
- Business & Professional Associations, Vernon Rockville
- Business & Trade Organizations, Vernon Rockville
- Business Legal Services, Vernon Rockville
- Business Management Consultants, Vernon Rockville
- Business Services, Vernon Rockville
- Business, Vocational & Technical, Vernon Rockville
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