- Bakeries, West Boylston
- Banks, West Boylston
- Banquet Halls, West Boylston
- Baptist Churches, West Boylston
- Barbers, West Boylston
- Bars & Grills, West Boylston
- Bathroom Remodeling, West Boylston - Bathroom Remodel & Planning Services
- Bathtub, Sink & Tile Contractors, West Boylston - Installation & Repair Services
- Beauty Salons, West Boylston
- Beer Brewing Supplies & Equipment, West Boylston
- Beverage Stores, West Boylston
- Biological Products & Supplies, West Boylston
- Biological Research, West Boylston - Biological Labs
- Book Stores, West Boylston
- Books, Magazines & Newspapers Stores, West Boylston - Bookstores
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- Brake Service & Repair, West Boylston - Brake Pads
- Breakfast Restaurants, West Boylston
- Brick Masonry & Bricklayer Contractors, West Boylston - Brick Mason - Install & Repair
- Builders & Contractors, West Boylston
- Builders & Contractors - More, West Boylston
- Building Construction Consultants, West Boylston - Construction Management & Consulting
- Building Materials, West Boylston - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, West Boylston
- Bulkhead Products, West Boylston
- Bus Rental & Charter Bus Service, West Boylston
- Business & Professional Associations, West Boylston
- Business Legal Services, West Boylston
- Business Services, West Boylston
- Business, Vocational & Technical, West Boylston
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