- Classifications
- Racecourses
- Racecourses and Tracks
- Radiator Covers
- Radio and Television Stations
- Radio Communications and Equipment
- Radio Telephone Services
- Radiographic Services
- Rag Merchants
- Rail Engineering Repair and Maintenance
- Railings and Guard Rails
- Railway Equipment
- Railway Maintenance
- Railway Sleepers
- Railway Transport Services
- Railway Wagons and Stock
- Railways
- Rating Surveyors
- Ready Mixed Concrete
- Reclaiming Waste Products
- Reclamation Centres
- Record Companies
- Record Tape and CD Manufacturers
- Record Tape and CD Wholesalers
- Recording Equipment
- Recording Studios
- Recycling and Disposal
- Recycling Centres
- Recycling Services
- Reflexologists
- Refractory Materials and Supplies
- Refrigeration
- Refrigeration Equipment
- Refrigeration Equipment Commercial
- Refrigeration Equipment Manufacturers
- Refrigeration Repairs
- Refrigerators and Freezers
- Refrigerators Servicing and Repairs
- Refurbishment Contractors
- Refuse Compactors
- Refuse Disposal Equipment
- Rehearsal Studios and Facilities
- Relaxation Techniques
- Religious Furnishings and Supplies
- Religious Organisations
- Relocation Services
- Removals and Storage Household
- Removals Industrial and Business
- Removals Overseas
- Research Development and Consultancy
- Research Organisations
- Residential Care Homes
- Rest and Retirement Homes
- Restaurants
- Restoration and Refurbishment Services
- Retail Outlets
- Retail Sale and Services
- Retail Store Sale and Services
- Retail Traders
- Riding Schools and Stables
- Risk Analysis
- River and Inland Waterways
- Road Construction Equipment Manufacturers
- Road Contractors
- Road Freight
- Road Haulage Services
- Road Marking
- Road Marking and Surfacing Equipment Manufacturers
- Road Surfacing Contractors
- Road Sweepers
- Roller Shutter Manufacturers
- Roofing Services
- Roofing Supplies and Materials
- Ropes and Hawsers
- Rubber and Plastic Products
- Rubber Chemical Manufacturers
- Rubber Mouldings
- Rubber Products Manufacturers and Suppliers
- Rubber Stamps
- Rust Proofing Services
