- Bakeries, Purcellville
- Balloons, Purcellville
- Balloons - Novelty, Toy & Decorative, Purcellville
- Banks, Purcellville
- Baptist Churches, Purcellville
- Barbers, Purcellville
- Bars & Grills, Purcellville
- Bathroom Remodeling, Purcellville - Bathroom Remodel & Planning Services
- Battery, Purcellville - Retail Batteries Stores
- Battery Storage, Purcellville
- Beauty Salons, Purcellville
- Bed & Breakfast, Purcellville
- Beverage Stores, Purcellville
- Bible Church, Purcellville
- Bicycle Repair & Service, Purcellville - Bike Repair Shops
- Bicycle Shops, Purcellville - Road, Hybrid, Folding, BMX, Electric & Mountain Bikes Stores & Dealers
- Blouses, Shirts & Sweater Manufacturers, Purcellville
- Blueprint Service, Purcellville - Blueprinting Services
- Bonds, Purcellville
- Bookkeeping Services Licensed, Purcellville
- Bookkeeping Systems & Services, Purcellville
- Brake Service & Repair, Purcellville - Brake Pads
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- Brick Masonry & Bricklayer Contractors, Purcellville - Brick Mason - Install & Repair
- Bricks, Blocks & Stone Products, Purcellville - Companies, Wholesale, Manufacturers & Suppliers
- Brokers Merchandise, Purcellville
- Builders & Contractors, Purcellville
- Builders & Contractors - More, Purcellville
- Building & Home Inspection, Purcellville - Real Estate, Building, Land & House Inspection Service
- Building Construction Consultants, Purcellville - Construction Management & Consulting
- Building Hardware & Materials, Purcellville
- Building Materials & Supplies, Purcellville
- Building Site Preparation Contractors, Purcellville - Land Preparation & Land Clearing
- Burglar Alarm Systems, Purcellville
- Bus Lines, Purcellville - Bus Transportation
- Bus Lines Ticket Agencies, Purcellville
- Bus Rental & Charter Bus Service, Purcellville
- Business & Professional Associations, Purcellville
- Business Brokers, Purcellville
- Business Communication Consultants, Purcellville
- Business Insurance, Purcellville
- Business Legal Services, Purcellville
- Business Management Consultants, Purcellville
- Business Services, Purcellville
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