- Bakeries, Louisville
- Banks, Louisville
- Banquet Halls, Louisville
- Baptist Churches, Louisville
- Barbers, Louisville
- Bars, Louisville
- Battery, Louisville - Retail Batteries Stores
- Battery Supplies, Louisville
- Beauty Salons, Louisville
- Bed & Breakfast, Louisville
- Beer Taverns, Louisville
- Bible Church, Louisville
- Bingo Halls, Supplies & Equipment, Louisville
- Boiler & Furnace Contractors, Louisville - Installation, Cleaning & Repair Services
- Bonds, Louisville
- Bottled Gas, Lp Gas & Propane Dealers, Louisville
- Brake Service & Repair, Louisville - Brake Pads
- Breakfast Restaurants, Louisville
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- Brethren Church, Louisville
- Brick Masonry & Bricklayer Contractors, Louisville - Brick Mason - Install & Repair
- Bricks, Blocks & Stone Products, Louisville - Companies, Wholesale, Manufacturers & Suppliers
- Builders & Contractors, Louisville
- Builders & Contractors - More, Louisville
- Builders Hardware Stores, Louisville
- Building & Home Inspection, Louisville - Real Estate, Building, Land & House Inspection Service
- Building Construction Consultants, Louisville - Construction Management & Consulting
- Building Hardware & Materials, Louisville
- Building Materials, Louisville - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Louisville
- Building Site Preparation Contractors, Louisville - Land Preparation & Land Clearing
- Bulk Food Stores, Louisville
- Business Insurance, Louisville
- Business Legal Services, Louisville
- Business Services, Louisville
- Business, Vocational & Technical, Louisville
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