- Baby Diaper Service
- Baby Furniture Stores
- Baby Products & Accessories
- Babysitting Services
- Backflow Testing & Prevention
- Background Music
- Badges
- Bagels
- Bailiffs
- Baked Goods Wholesalers
- Bakeries
- Bakery Equipment
- Bakery Supplies
- Balancing Service
- Balconies
- Balloons
- Bank Equipment & Supplies
- Banks
- Banquet Rooms
- Bar Fixtures & Supplies
- Bar-Coding Equipment & Systems
- Barbecues & Accessories
- Barbers
- Barbers
- Barbers' Equipment & Supplies
- Barges
- Bars
- Bartender & Host Services
- Base Metal Smelting & Refining
- Baseball Batting Cages & Ranges
- Baseball Clubs & Lessons
- Basketball Clubs & Lessons
- Baskets
- Bathroom Accessories
- Bathroom Renovations
- Baths & Saunas: Relaxation
- Bathtub Equipment & Supplies
- Bathtub Refinishing & Repairing
- Battery Chargers
- Battery Supplies
- Beads
- Bearings
- Beauty & Health Spas
- Beauty Institutes
- Beauty Salon Equipment & Supplies
- Bed & Breakfasts
- Bedding & Linens
- Beds
- Beekeepers
- Beekeeping Supplies
- Beer & Ale
- Beer Dispensers & Coolers
- Beverage Dealers
- Beverage Distributors & Bottlers
- Bicycle Accessories
- Bicycle Manufacturers & Wholesalers
- Bicycle Rental
- Bicycle Stores
- Bill & Coin Counters
- Bill Payment Services
- Bingo Equipment & Supplies
- Bingo Halls
- Binoculars
- Biomedical Products
- Biotechnology Consultants
- Birth Control Information Centres
- Bistros
- Black Hair Salons
- Blacksmiths
- Blasting Contractors
- Bleachers & Grandstand Seats
- Blood Donation Centres & Clinics
- Blowers & Blower Systems
- Board Game Pubs & Cafés
- Boat Builders & Designers
- Boat Charter & Tours
- Boat Dealers & Brokers
- Boat Equipment & Supplies
- Boat Rental
- Boat Repair & Maintenance
- Boat Towing
- Boat Transport
- Boating & Sailing Courses
- Boiler Parts & Supplies
- Boiler Rental
- Boiler Service & Repair
- Book Publishers
- Book Stores
- Book Wholesalers
- Bookbinders
- Bookbinding Equipment & Supplies
- Bookkeeping
- Bookkeeping Software & Accounting Systems
- Boots
- Bottle Caps & Seals
- Bottles & Jars
- Boutiques
- Bowling
- Bowling Alley Equipment & Supplies
- Bowling Alley Refinishing & Repair
- Bowling Clothing & Accessories
- Boxing Training & Lessons
- Brake Lining Manufacturers & Distributors
- Brake Manufacturers & Distributors
- Brake Parts & Supplies
- Brass
- Brass Products
- Brasseries
- Brazilian Restaurants
- Breakfast Restaurants
- Breastfeeding Information & Supplies
- Brewers
- Brewing Equipment & Supplies
- Bridal Shops
- Bridal Supply Manufacturers & Wholesalers
- Bridge Builders
- Bronze
- Bronzing & Preserving
- Brushes & Brooms
- Buckles
- Buffets
- Buffing & Polishing
- Buffing & Polishing Equipment & Supplies
- Building & House Movers
- Building Consultants
- Building Contractors
- Building Exterior Cleaning
- Building Inspectors
- Building Maintenance
- Building Material Manufacturers & Wholesalers
- Building Repair & Restoration
- Bulk & Bottled Water
- Bulk Foods
- Bungee Jumping
- Burger Restaurants
- Burlap
- Bus & Coach Lines
- Bus & Coach Rental & Charter
- Bus Stations & Ticket Agencies
- Business & Trade Organizations
- Business Brokers
- Business Centres
- Business Forms & Systems
- Business Insurance
- Business Lawyers
- Business Management Consultants
- Business Valuation
- Butcher Shops
- Butchery Equipment & Supplies
- Button Advertising
- Buttons