- Bagels, Bar Harbor
- Bakeries, Bar Harbor
- Banks, Bar Harbor
- Banquet Halls, Bar Harbor
- Baptist Churches, Bar Harbor
- Barbecue Restaurants, Bar Harbor
- Barbers, Bar Harbor
- Bars, Bar Harbor
- Bars & Grills, Bar Harbor
- Beauty Salons, Bar Harbor
- Bed & Breakfast, Bar Harbor
- Beer & Wine Stores, Bar Harbor
- Beer Taverns, Bar Harbor
- Beverage Delivery Service, Bar Harbor
- Beverage Stores, Bar Harbor
- Bicycle Rentals, Bar Harbor - Bike Rental
- Bicycle Repair & Service, Bar Harbor - Bike Repair Shops
- Bicycle Shops, Bar Harbor - Road, Hybrid, Folding, BMX, Electric & Mountain Bikes Stores & Dealers
- Bicycle Tours, Bar Harbor
- Bistros, Bar Harbor
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- Boat & Yacht Charters, Bar Harbor
- Boat Services, Bar Harbor
- Boat Storage , Bar Harbor - Equipment & Services
- Boats & Yachts, Bar Harbor - Yachts, Sailboats & Boats for Sale
- Book Stores, Bar Harbor
- Books, Magazines & Newspapers Stores, Bar Harbor - Bookstores
- Boutiques & Boutique Items, Bar Harbor
- Breakfast Restaurants, Bar Harbor
- Brick Masonry & Bricklayer Contractors, Bar Harbor - Brick Mason - Install & Repair
- Builders & Contractors, Bar Harbor
- Builders & Contractors - More, Bar Harbor
- Building & Property Maintenance & Services, Bar Harbor
- Building Materials, Bar Harbor - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Bar Harbor
- Bus Lines, Bar Harbor - Bus Transportation
- Business Insurance, Bar Harbor
- Business Legal Services, Bar Harbor
- Business Management Consultants, Bar Harbor
- Business Services, Bar Harbor
- Business, Vocational & Technical, Bar Harbor
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