- Baby Stores, Copiague - Baby Accessories & Clothes
- Bakeries, Copiague
- Banks, Copiague
- Banners, Flags, Pennants, Decals, Posters & Signs, Copiague
- Baptist Churches, Copiague
- Barber Shops, Copiague
- Barbers, Copiague
- Bars, Copiague
- Bars & Grills, Copiague
- Bathroom Fixtures, Copiague - Bathroom Faucets, Bathtubs, Sinks, Shower Heads & Fixtures, etc
- Bathroom Remodeling, Copiague - Bathroom Remodel & Planning Services
- Batteries Storage Manufacturers, Copiague
- Battery, Copiague - Retail Batteries Stores
- Battery Manufacturers, Copiague
- Battery Storage, Copiague
- Beauty Salons, Copiague
- Bedroom Furniture Stores, Copiague - Master & Kids Bedroom Furniture Sets & Beds
- Beer Taverns, Copiague
- Beverage Stores, Copiague
- Billiard & Pool Parlors, Copiague
- Boat Covers, Tops & Upholstery, Copiague
- Boat Services, Copiague
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- Boat, Yacht & Sail Boat Transport, Copiague
- Boats & Yachts, Copiague - Yachts, Sailboats & Boats for Sale
- Book Publishers, Copiague - Book Printing & Publishing
- Boutiques & Boutique Items, Copiague
- Brake Service & Repair, Copiague - Brake Pads
- Breakfast Restaurants, Copiague
- Brick Masonry & Bricklayer Contractors, Copiague - Brick Mason - Install & Repair
- Builders & Contractors, Copiague
- Builders & Contractors - More, Copiague
- Builders Hardware Stores, Copiague
- Building Construction Consultants, Copiague - Construction Management & Consulting
- Building Materials, Copiague - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Copiague
- Burglar Alarm Systems, Copiague
- Bus Lines, Copiague - Bus Transportation
- Bus Lines Ticket Agencies, Copiague
- Bus Rental & Charter Bus Service, Copiague
- Business & Professional Associations, Copiague
- Business Insurance, Copiague
- Business Legal Services, Copiague
- Business Services, Copiague
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