- Classifications
- Baby and Nursery Equipment
- Baby Sitters
- Back Care
- Bacon and Ham Curers and Merchants
- Badges and Emblems
- Bag Manufacturers
- Bag Suppliers
- Bailiffs
- Bakery and Confectionery Supplies
- Bakery Equipment
- Bakery Supplies
- Ballet Schools
- Balloons
- Banks
- Banqueting and Function Rooms
- Bar Code Products and Services
- Bar Equipment and Accessories
- Bar Fitters
- Barbecue Equipment and Supplies
- Barbers
- Barcoding Products and Services
- Barristers
- Bath Resurfacing
- Bathroom Equipment and Fittings
- Bathroom Fixtures Manufacturers
- Bathroom Planners and Furnishers
- Batteries and Battery Manufacturers
- Battery Servicing
- Battery Suppliers
- Bearings
- Bearings Gears Gearing and Driving Elements
- Beauty Consultants
- Beauty Products
- Beauty Salons
- Beauty Schools
- Bedroom Planners and Furnishers
- Beds and Bedding
- Beds Bedding Mattresses and Covers
- Bee Farmers and Beekeepers
- Belting Manufacturers
- Benefits Agency
- Bingo Halls
- Binoculars and Telescopes
- Bins Litter Gritting and Salting
- Bird Breeders
- Births Marriages and Deaths
- Biscuit Manufacturers
- Blacksmiths and Forgemasters
- Blast Cleaning
- Blast Cleaning Equipment
- Blinds Awnings and Canopies
- Blood Donor Services
- Blood Stock Agents
- Boarding Kennels and Catteries
- Boat Builders and Repairers
- Boat Furnishings and Fittings
- Boat Hire and Charter
- Boat Sales
- Boat Trips and Excursions
- Boiler and Pipework Installations
- Boiler Manufacturers
- Boiler Services
- Bolts and Nuts
- Book Publishers
- Bookbinders
- Bookbinders Machinery and Materials
- Bookmakers
- Booksellers
- Bottle Manufacturers and Suppliers
- Bottled Gas Suppliers
- Bottled Water Suppliers
- Bottling Machinery and Equipment
- Bouncy Castles and Inflatables
- Bowling Centres
- Boxes and Cartons
- Brake and Clutch Service Centres
- Brakes and Clutches
- Brass and Copper Stockists
- Brassware Manufacturers
- Brewers
- Brick Merchants
- Bricklaying
- Bricks
- Bridal Shops
- Broadcasting Services
- Brushes and Brooms
- Builders
- Builders Merchants
- Builders Tools and Equipment
- Building Blocks
- Building Consultants
- Building Contractors
- Building Information Services
- Building Maintenance and Repairs
- Building Refurbishment and Restoration
- Building Services
- Building Societies
- Building Surveyors
- Buildings Sectional Prefabricated and Portable
- Bulb Growers and Suppliers
- Bullion Dealers
- Bureaux De Changes
- Burglar and Intruder Alarm Systems
- Bus and Coach Operators and Stations
- Business Advisers
- Business and Management Services
- Business and Trade Organisations
- Business Centres
- Business Consultants and Coaching
- Business Development Organisations
- Business Enterprise Agencies
- Business Information Services
- Business Services
- Business Systems
- Business Transfer Agents
- Butchers
- Butchery Equipment and Supplies
