- Bakeries, Beamsville
- Banks, Beamsville
- Banners, Flags, Pennants, Decals, Posters & Signs, Beamsville
- Baptist Churches, Beamsville
- Barber Shops, Beamsville
- Barbers, Beamsville
- Bars, Beamsville
- Bars & Grills, Beamsville
- Basement Waterproofing - Waterproofing Contractors, Beamsville - Foundation & Concrete Waterproofing
- Bathroom Remodeling, Beamsville - Bathroom Remodel & Planning Services
- Beauty Consultants, Beamsville
- Beauty Salons, Beamsville
- Bed & Breakfast, Beamsville
- Bedroom Furniture Stores, Beamsville - Master & Kids Bedroom Furniture Sets & Beds
- Beer & Wine Stores, Beamsville
- Beverage Stores, Beamsville
- Bicycle Shops, Beamsville - Road, Hybrid, Folding, BMX, Electric & Mountain Bikes Stores & Dealers
- Bonds, Beamsville
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- Book Stores, Beamsville
- Books, Magazines & Newspapers Stores, Beamsville - Bookstores
- Bricks, Blocks & Stone Products, Beamsville - Companies, Wholesale, Manufacturers & Suppliers
- Builders & Contractors, Beamsville
- Builders & Contractors - More, Beamsville
- Building Construction Consultants, Beamsville - Construction Management & Consulting
- Building Hardware & Materials, Beamsville
- Building Materials, Beamsville - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Beamsville
- Burglar Alarm Systems, Beamsville
- Burglar Alarm Systems, Beamsville
- Business & Professional Associations, Beamsville
- Business Legal Services, Beamsville
- Business Services, Beamsville
- Business Studio Rental, Beamsville
- Business, Vocational & Technical, Beamsville
- Butchers & Meat Markets - Manufacturers, Beamsville
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