- Bagels, Andover
- Baker Equipment & Supplies, Andover - Donut Maker, etc
- Bakeries, Andover
- Banks, Andover
- Banners, Flags, Pennants, Decals, Posters & Signs, Andover
- Banquet Halls, Andover
- Barbers, Andover
- Bars, Andover
- Barter & Trade Exchanges, Andover
- Beach & Water Related Services, Andover
- Beauty Salons, Andover
- Bed & Breakfast, Andover
- Beer Taverns, Andover
- Behavioral Health Doctors, Physicians & Surgeons, Andover - Behavioral Medicine
- Beverage & Juice Bottlers Manufacturers, Andover
- Beverage Dispenser Supplies & Equipment , Andover - Beverage Dispensing
- Beverage Non-Alcoholic Manufacturers, Andover
- Beverage Stores, Andover
- Bio Hazardous Material - Handling & Disposal, Andover
- Bistros, Andover
- Board Of Education, Andover
- Boating & Swimming Clubs, Andover
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- Boats & Yachts, Andover - Yachts, Sailboats & Boats for Sale
- Book Stores, Andover
- Bottling Manufacturing, Andover
- Brake Service & Repair, Andover - Brake Pads
- Breakfast Restaurants, Andover
- Bricks, Blocks & Stone Products, Andover - Companies, Wholesale, Manufacturers & Suppliers
- Buffet Restaurants, Andover
- Builders & Contractors, Andover
- Builders & Contractors - More, Andover
- Builders Hardware Stores, Andover
- Building & Property Maintenance & Services, Andover
- Building Construction Consultants, Andover - Construction Management & Consulting
- Building Materials, Andover - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Andover
- Burglar Alarm Systems, Andover
- Bus Rental & Charter Bus Service, Andover
- Business & Professional Associations, Andover
- Business Legal Services, Andover
- Business Management Consultants, Andover
- Business Services, Andover
- Business, Vocational & Technical, Andover
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