- Bagels, New Canaan
- Bakeries, New Canaan
- Banks, New Canaan
- Baptist Churches, New Canaan
- Barber Shops, New Canaan
- Barbers, New Canaan
- Bars, New Canaan
- Bars & Grills, New Canaan
- Bathing Suit Materials, New Canaan
- Beauty Salons, New Canaan
- Bed & Breakfast, New Canaan
- Bedding & Linens Stores, New Canaan - Bed Sheets, Quilts and Coverlets, Cushions, Pillows, Slipcovers & Bed & Table Linens
- Bedroom Furniture Stores, New Canaan - Master & Kids Bedroom Furniture Sets & Beds
- Bee Control & Removal Services, New Canaan - Bee Removal Companies
- Beer & Wine Stores, New Canaan
- Beverage Stores, New Canaan
- Beverages, New Canaan
- Bicycle Rentals, New Canaan - Bike Rental
- Bicycle Repair & Service, New Canaan - Bike Repair Shops
- Bistros, New Canaan
- Bonds, New Canaan
- Book Publishers, New Canaan - Book Printing & Publishing
- Book Stores, New Canaan
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- Books, Magazines & Newspapers Stores, New Canaan - Bookstores
- Boutiques & Boutique Items, New Canaan
- Breakfast Restaurants, New Canaan
- Brick Masonry & Bricklayer Contractors, New Canaan - Brick Mason - Install & Repair
- Bricks, Blocks & Stone Products, New Canaan - Companies, Wholesale, Manufacturers & Suppliers
- Builders & Contractors, New Canaan
- Builders & Contractors - More, New Canaan
- Building & Home Inspection, New Canaan - Real Estate, Building, Land & House Inspection Service
- Building & Land Inspection Service, New Canaan
- Building Construction Consultants, New Canaan - Construction Management & Consulting
- Building Materials, New Canaan - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, New Canaan
- Burglar Alarm Systems, New Canaan
- Bus Lines, New Canaan - Bus Transportation
- Business & Professional Associations, New Canaan
- Business Communication Consultants, New Canaan
- Business Insurance, New Canaan
- Business Legal Services, New Canaan
- Business Management Consultants, New Canaan
- Business Services, New Canaan
- Business Wholesale, New Canaan
- Business, Vocational & Technical, New Canaan
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