- Banks, Walkerton
- Banquet Halls, Walkerton
- Baptist Churches, Walkerton
- Barber Shops, Walkerton
- Bars, Walkerton
- Bathroom Remodeling, Walkerton - Bathroom Remodel & Planning Services
- Battery, Walkerton - Retail Batteries Stores
- Battery Storage, Walkerton
- Battery Supplies, Walkerton
- Beach & Water Related Services, Walkerton
- Beauty Salons, Walkerton
- Bed & Breakfast, Walkerton
- Beer & Wine Stores, Walkerton
- Beverage Stores, Walkerton
- Billiard Supplies & Equipment, Walkerton - Pool Table
- Blinds Installation Cleaning & Repairing, Walkerton
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- Bookkeeping Systems & Services, Walkerton
- Books, Magazines & Newspapers Stores, Walkerton - Bookstores
- Boutiques & Boutique Items, Walkerton
- Bridge, Tunnel & Elevated Highway Construction, Walkerton - Highway, Street And Bridge Contractors
- Builders & Contractors, Walkerton
- Builders & Contractors - More, Walkerton
- Building Cleaning - Exterior, Walkerton - Cleaning Service
- Building Construction Consultants, Walkerton - Construction Management & Consulting
- Building Materials, Walkerton - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Walkerton
- Burglar Alarm Systems, Walkerton
- Business & Professional Associations, Walkerton
- Business Insurance, Walkerton
- Business Legal Services, Walkerton
- Business Services, Walkerton
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