- Baby & Childrens Gifts & Accessories, Louisville
- Baby Furniture Stores, Louisville
- Baby Items & Supplies, Louisville
- Baby Stores, Louisville - Baby Accessories & Clothes
- Backflow Prevention Devices & Services, Louisville
- Badges & Buttons, Louisville
- Bagel Restaurants, Louisville
- Bagels, Louisville
- Bags, Louisville - Paper, Plastic, Sand, Burlap, Canvas, Transparent, etc
- Bags Burlap, Cotton, Canvas & Polypropylene, Louisville
- Baha'i Church, Louisville
- Baked Goods, Snacks & Sweets, Louisville
- Baker Equipment & Supplies, Louisville - Donut Maker, etc
- Bakeries, Louisville
- Baking Supplies & Needs, Louisville - Flavoring Extracts, Flour & More
- Balloon Manufacturers, Louisville
- Balloons, Louisville
- Balloons & Helium, Louisville
- Balloons - Advertising & Signage, Louisville
- Balloons - Novelty, Toy & Decorative, Louisville
- Balloons Hot & Cold Air, Louisville
- Bank Supplies & Equipment, Louisville
- Banking & Finance Machines, Louisville
- Banking Attorneys & Lawyers, Louisville
- Banking Attorneys & Lawyers, Louisville
- Banking Lawyers & Attorneys, Louisville
- Bankruptcy Attorneys & Lawyers, Louisville
- Bankruptcy Attorneys & Lawyers, Louisville
- Bankruptcy Lawyers & Attorneys, Louisville
- Bankruptcy Services, Louisville
- Banks, Louisville
- Banners, Flags, Pennants, Decals, Posters & Signs, Louisville
- Banquet Halls, Louisville
- Banquet Halls, Reception Halls & Party Facilities, Louisville
- Baptist Churches, Louisville
- Bar Code Scanning Supplies & Equipment, Louisville
- Bar Supplies, Equipment & Fixtures, Louisville
- Barbecue Restaurants, Louisville
- Barber Schools, Louisville
- Barber Shop & Beauty Salon Supplies & Equipment, Louisville - Beauty & Barber Supplies
- Barber Shops, Louisville
- Barbers, Louisville
- Barns, Louisville
- Barrels & Drums, Louisville
- Bars, Louisville
- Bars & Grills, Louisville
- Bartending Service, Louisville
- Baseball & Softball Batting Ranges, Louisville
- Baseball & Softball Clubs, Louisville
- Baseball Cards & Sports Memorabilia, Louisville
- Basement Contractors, Louisville - Basement Finishing
- Basement Waterproofing - Waterproofing Contractors, Louisville - Foundation & Concrete Waterproofing
- Basketball Clubs & Instruction, Louisville
- Bathing Accessories, Louisville
- Bathroom Accessories & Fixtures, Louisville - Bath Accessories, Vanity & Mirrors
- Bathroom Fixtures, Louisville - Bathroom Faucets, Bathtubs, Sinks, Shower Heads & Fixtures, etc
- Bathroom Remodeling, Louisville - Bathroom Remodel & Planning Services
- Bathtubs & Sinks - Repair & Refinishing, Louisville - Bathtub Refinishing, Repair & Resurfacing
- Batteries Dry Cell Manufacturers, Louisville
- Batteries Dry Cell Wholesale, Louisville
- Batteries Storage Manufacturers, Louisville
- Battery, Louisville - Retail Batteries Stores
- Battery Charging & Monitoring Equipment, Louisville
- Battery Manufacturers, Louisville
- Battery Storage, Louisville
- Battery Stores, Louisville
- Beach & Water Related Services, Louisville
- Bearings, Louisville
- Beauty Consultants, Louisville
- Beauty Cosmetic & Salon Equipment & Supplies Manufacturers, Louisville
- Beauty Salons, Louisville
- Bed & Breakfast, Louisville
- Bed Parts & Frames Metal Wood & Other, Louisville
- Bedding & Linens Stores, Louisville - Bed Sheets, Quilts and Coverlets, Cushions, Pillows, Slipcovers & Bed & Table Linens
- Bedding Manufacturers Supplies, Louisville
- Bedroom Furniture Stores, Louisville - Master & Kids Bedroom Furniture Sets & Beds
- Bee Control & Removal Services, Louisville - Bee Removal Companies
- Beef Restaurants, Louisville
- Beer & Ale - Wholesale, Louisville
- Beer & Wine Stores, Louisville
- Beer Taverns, Louisville
- Belting & Belting Supplies Wholesale, Louisville
- Belting Supplies & Equipment, Louisville
- Bereavement Services, Louisville
- Better Business Bureaus, Louisville
- Beverage & Juice Bottlers Manufacturers, Louisville
- Beverage Alcoholic, Louisville
- Beverage Delivery Service, Louisville
- Beverage Dispenser Supplies & Equipment , Louisville - Beverage Dispensing
- Beverage Machinery, Louisville
- Beverage Manufacturers, Louisville
- Beverage Non-Alcoholic Manufacturers, Louisville
- Beverage Stores, Louisville
- Beverages, Louisville
- Bibles Retail, Louisville
- Bicycle Rentals, Louisville - Bike Rental
- Bicycle Repair & Service, Louisville - Bike Repair Shops
- Bicycle Shops, Louisville - Road, Hybrid, Folding, BMX, Electric & Mountain Bikes Stores & Dealers
- Big & Tall Men's Clothing, Louisville
- Bill Payment Service, Louisville
- Billiard & Pool Parlors, Louisville
- Billiard & Pool Table Sales, Service & Repair, Louisville
- Billiard Supplies & Equipment, Louisville - Pool Table
- Billing Services, Louisville
- Bingo Halls, Supplies & Equipment, Louisville
- Binoculars & Telescopes, Louisville
- Biofeedback Therapy & Training, Louisville
- Bird Feeders & Supplies, Louisville
- Bird Repellent, Barrier & Control, Louisville
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- Birth Control & Family Planning Clinics, Louisville
- Bistros, Louisville
- Blacksmiths, Louisville
- Blasting Contractors Supplies & Equipment, Louisville
- Bleachers & Grandstands Supplies & Equipment, Louisville
- Blind Services & Facilities, Louisville
- Blinds & Shutters, Louisville
- Blood Bank & Center, Louisville
- Blouses, Shirts & Sweater Manufacturers, Louisville
- Blowers & Fans Manufacturers, Louisville
- Blueprint Service, Louisville - Blueprinting Services
- Board Of Education, Louisville
- Boat & Saling Clubs, Louisville
- Boat & Yacht Brokers, Louisville
- Boat Covers, Tops & Upholstery, Louisville
- Boat Services, Louisville
- Boating & Swimming Clubs, Louisville
- Boats & Yachts, Louisville - Yachts, Sailboats & Boats for Sale
- Boiler & Furnace Contractors, Louisville - Installation, Cleaning & Repair Services
- Boiler - New & Used, Louisville - Radiant Heating
- Boiler Repair & Cleaning, Louisville
- Boiler Supplies & Equipment, Louisville - Water Heaters & Boilers
- Bonds, Louisville
- Bonds Surety & Fidelity, Louisville
- Book Binders & Folders, Louisville - Office Supplies
- Book Publishers, Louisville - Book Printing & Publishing
- Book Stores, Louisville
- Book Stores - Professional Technical & Trade Books, Louisville
- Bookkeeping Services Commercial, Louisville
- Bookkeeping Services Licensed, Louisville
- Bookkeeping Systems & Services, Louisville
- Books, Magazines & Newspapers Stores, Louisville - Bookstores
- Boot & Shoe Repair, Louisville
- Boot Manufacturers, Louisville
- Boots Retail, Louisville
- Bottled Gas, Lp Gas & Propane Dealers, Louisville
- Bottles & Jars, Louisville
- Bottling Manufacturing, Louisville
- Boutiques & Boutique Items, Louisville
- Bowling Apparel & Accessories, Louisville
- Bowling Centers, Louisville
- Bowling Lane Equipment & Supplies, Louisville
- Boxes & Cartons Folding Manufacturers, Louisville
- Boxes Corrugated & Fiber Manufacturers, Louisville
- Boxes Specialty & Fancy, Louisville
- Brake Lining Manufacturers, Louisville
- Brake Service & Repair, Louisville - Brake Pads
- Bras & Lingerie, Louisville
- Brass & Brass Products, Louisville
- Breakfast Restaurants, Louisville
- Brew Pubs, Louisville
- Brick & Structural Product Manufacturers, Louisville
- Brick Clay Common Face, Louisville
- Brick Fire, Louisville
- Brick Masonry & Bricklayer Contractors, Louisville - Brick Mason - Install & Repair
- Brick Pavers, Louisville
- Bricks, Blocks & Stone Products, Louisville - Companies, Wholesale, Manufacturers & Suppliers
- Bridge & Poker Instruction, Louisville
- Brokers Merchandise, Louisville
- Brooms & Brushes Manufacturers, Louisville
- Buddhist Churches, Louisville
- Buffet Restaurants, Louisville
- Builders & Contractors, Louisville
- Builders & Contractors - More, Louisville
- Builders Hardware Stores, Louisville
- Building & Home Inspection, Louisville - Real Estate, Building, Land & House Inspection Service
- Building & House Movers & Raising Contractors, Louisville
- Building & Land Inspection Service, Louisville
- Building & Property Maintenance & Services, Louisville
- Building Cleaning - Exterior, Louisville - Cleaning Service
- Building Cleaning - Interior, Louisville - Cleaning Service
- Building Construction Consultants, Louisville - Construction Management & Consulting
- Building Design & Construction Consultants, Louisville
- Building Equipment Installation Contractors, Louisville
- Building Hardware & Materials, Louisville
- Building Materials, Louisville - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Louisville
- Building Materials, Glass, Louisville
- Building Restoration & Preservation, Louisville
- Building Site Preparation Contractors, Louisville - Land Preparation & Land Clearing
- Buildings Concrete, Louisville
- Bulldozer, Louisville
- Bumper Stickers, Louisville
- Burglar & Alarm Service, Louisville - Monitoring Service
- Burglar Alarm Systems, Louisville
- Burial Vaults, Louisville
- Bus & Other Large Specialty Vehicle Manufacturers, Louisville
- Bus Dealers, Louisville
- Bus Lines, Louisville - Bus Transportation
- Bus Lines Ticket Agencies, Louisville
- Bus Parts Equipment & Supplies, Louisville
- Bus Rental & Charter Bus Service, Louisville
- Business & Professional Associations, Louisville
- Business & Trade Organizations, Louisville
- Business Brokers, Louisville
- Business Cards, Louisville
- Business Colleges, Louisville
- Business Communication Consultants, Louisville
- Business Forms, Systems & Supplies, Louisville
- Business Insurance, Louisville
- Business Legal Services, Louisville
- Business Machines Repair, Louisville
- Business Management Consultants, Louisville
- Business Planning & Consulting, Louisville
- Business Services, Louisville
- Business Wholesale, Louisville
- Business, Vocational & Technical, Louisville
- Butchers & Meat Markets - Manufacturers, Louisville
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