- Bakeries, Grantsburg
- Banks, Grantsburg
- Baptist Churches, Grantsburg
- Bars, Grantsburg
- Bars & Grills, Grantsburg
- Beauty Salons, Grantsburg
- Bed & Breakfast, Grantsburg
- Bedding & Linens Stores, Grantsburg - Bed Sheets, Quilts and Coverlets, Cushions, Pillows, Slipcovers & Bed & Table Linens
- Beer Taverns, Grantsburg
- Boats & Yachts, Grantsburg - Yachts, Sailboats & Boats for Sale
- Bonds, Grantsburg
- Bowling Centers, Grantsburg
- Brick Masonry & Bricklayer Contractors, Grantsburg - Brick Mason - Install & Repair
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- Builders & Contractors, Grantsburg
- Builders & Contractors - More, Grantsburg
- Building & Home Inspection, Grantsburg - Real Estate, Building, Land & House Inspection Service
- Building & Property Maintenance & Services, Grantsburg
- Building Construction Consultants, Grantsburg - Construction Management & Consulting
- Building Materials, Grantsburg - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Grantsburg
- Business & Professional Associations, Grantsburg
- Business Insurance, Grantsburg
- Business Legal Services, Grantsburg
- Business Services, Grantsburg
- Butcher Shops, Grantsburg
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