- Classifications
- Haberdashery
- Hair Consultants
- Hairdressers
- Hairdressers Equipment and Supplies
- Hairdressing Schools
- Hairpieces and Wigs
- Halls For Hire
- Handbags
- Hardware
- Hardware Merchants
- Hat Shops
- Hats and Caps Manufacturers
- Hay and Straw Merchants
- Health and Safety Consultants
- Health and Safety Products
- Health and Safety Training
- Health Authorities
- Health Care
- Health Clubs and Centres
- Health Foods
- Health Insurance
- Healthcare Services
- Hearing Aids
- Heat Exchangers
- Heat Treatment
- Heating and Ventilating Engineers
- Heating and Ventilation Equipment
- Heating and Ventilation Maintenance
- Heating Appliance Spare Parts
- Heating Contractors
- Heating Services Industrial and Commercial
- Helplines
- Heraldry
- Herb Growers
- Herbalists
- Herbs and Spices
- Hi Fi Centres
- Hi Fi Equipment
- HiFi and Audio Systems Servicing and Repairs
- Hire Centres
- Historic Buildings
- Hoists
- Holding Companies
- Holiday Camps and Centres
- Holidays Self Catering Accommodation
- Hologram Producers
- Home Care Services
- Home Improvements
- Homefurnishings
- Homeopathic Practitioners
- Horse Boxes and Transporting
- Horse Breeders and Dealers
- Horse Drawn Vehicles Hire
- Horse Trainers
- Horticultural Consultants
- Horticultural Equipment
- Horticultural Equipment Manufacturers
- Hose Fittings and Accessories
- Hose Manufacturers
- Hospices
- Hospital Equipment and Supplies
- Hospital Services
- Hospitals
- Hostels
- Hot Air Balloons
- Hot Foil Stamping
- Hot Tubs Spas and Whirlpools
- Hotel and Restaurant Equipment
- Hotel Booking Agents
- Hotels
- House Builders
- House Clearance
- Household Goods
- Housing Associations
- Housing Consultants
- Human Resource Consultants
- Hydraulic Engineers
- Hydraulic Equipment
- Hydraulic Hose Assemblies
- Hydraulic Systems and Equipment
- Hydraulic Valve Manufacturers
- Hydroponics
- Hygiene and Cleansing Products and Services
- Hygiene and Sanitary Appliance Manufacturers
- Hypnotherapists
