- Bakeries, Northport
- Banks, Northport
- Banners, Pennants & Flags, Northport
- Barbers, Northport
- Bars, Northport
- Bars & Grills, Northport
- Beauty Salons, Northport
- Beer Taverns, Northport
- Beverages, Northport
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- Boat Services, Northport
- Boats & Yachts, Northport - Yachts, Sailboats & Boats for Sale
- Book Stores, Northport
- Brew Pubs, Northport
- Brick Masonry & Bricklayer Contractors, Northport - Brick Mason - Install & Repair
- Builders & Contractors, Northport
- Builders & Contractors - More, Northport
- Building Site Preparation Contractors, Northport - Land Preparation & Land Clearing
- Business Services, Northport
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