- Bagels, Washington
- Bail Bonds, Washington
- Bakeries, Washington
- Banks, Washington
- Barber Shop & Beauty Salon Supplies & Equipment, Washington - Beauty & Barber Supplies
- Barbers, Washington
- Bars, Washington
- Bars & Grills, Washington
- Bathroom Remodeling, Washington - Bathroom Remodel & Planning Services
- Battery, Washington - Retail Batteries Stores
- Battery Storage, Washington
- Beauty Salons, Washington
- Beer Taverns, Washington
- Beverage Stores, Washington
- Bible Church, Washington
- Bicycle Repair & Service, Washington - Bike Repair Shops
- Bicycle Shops, Washington - Road, Hybrid, Folding, BMX, Electric & Mountain Bikes Stores & Dealers
- Birth Control & Family Planning Clinics, Washington
- Bistros, Washington
- Board Of Education, Washington
- Books, Magazines & Newspapers Stores, Washington - Bookstores
- Bottled Gas, Lp Gas & Propane Dealers, Washington
- Bowling Centers, Washington
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- Breakfast Restaurants, Washington
- Brick Masonry & Bricklayer Contractors, Washington - Brick Mason - Install & Repair
- Builders & Contractors, Washington
- Builders & Contractors - More, Washington
- Builders Hardware Stores, Washington
- Building & Property Maintenance & Services, Washington
- Building Construction Consultants, Washington - Construction Management & Consulting
- Building Equipment Installation Contractors, Washington
- Building Materials, Washington - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Washington
- Burglar & Alarm Service, Washington - Monitoring Service
- Burglar Alarm Systems, Washington
- Bus Lines, Washington - Bus Transportation
- Bus Lines Ticket Agencies, Washington
- Bus Rental & Charter Bus Service, Washington
- Business & Professional Associations, Washington
- Business & Trade Organizations, Washington
- Business Communication Consultants, Washington
- Business Legal Services, Washington
- Business Management Consultants, Washington
- Business Services, Washington
- Business, Vocational & Technical, Washington
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