– Building contractors
– Building industry contractors
– Fitting out and furnishing contractors. Interior decoration/design
– Gas, water, plumbing, heating, ventilation and air conditioning (HVAC) plant installation and maintenance contractors
– Painting and facade coating contractors
– Pipework and tubing installation contractors
– Roofing and wall cladding contractors

– Civil and marine engineering contractors

– Earth-moving, excavation, foundation and tunnelling contractors

– Spring, well, irrigation and water supply contractors

Education, Training & Organizations

– Education and training

– General education schools

– International organisations, administrations and associations

– Public administration

Leisure & Tourism

– Sports and leisure equipment

– Musical instruments, brass and woodwind

– Musical instruments, keyboard

– Musical instruments, percussion

– Musical instruments, string

Metals, Machinery & Engineering

– Industrial subcontractors

– Maintenance and repair services for industrial equipment

Minerals

– Glass, cement and ceramics

– Hollow glassware for domestic and catering use

– Shaped glass products

– Quarried stone

– Calcareous stone

Retail & Trader

– General traders, department and retail stores

– Retail trade

– Vending machine operators

Transport & Logistics

– Transportation and logistics services

– Road haulage, bulk
– Road haulage, part loads
– Road transport services classified by type of freight