– Building maintenance services
– Concrete works contractors
– Electrical installation 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

– Spring, well, irrigation and water supply contractors

Education, Training & Organizations

– Education and training

– Crèches and nursery schools

– General education schools

– Technical and professional schools, colleges and institutes

– Universities

– International organisations, administrations and associations

– Public administration

– Trade unions, professional

– Medical care, social services

– Assistance services for the elderly and the disabled

– Charitable organisations

– Medical social institutes

– Social services

Electrical, Electronics & Optical

– Electrical equipment. Nuclear equipment

– Electrical industry contractors

– Electronic equipment. Telecommunications equipment

– Installation and maintenance services for the electronics industry

Energy, Environment

– Energy, fuel and water

– Gas distribution

– Gas production

IT, Internet, R&D

– Technical offices and engineering consultancies, architects

– Building industry information consultants

– Electronic and telecommunications engineering consultants

– Transport equipment engineering consultants NES

Leisure & Tourism

– Hospitality, tourism, hotel and catering industries

– Hotels and motels

– Restaurants and bars

– Leisure, culture and entertainment

– Leisure and sports centres

– Libraries

– Party, entertainment and festival organisers. Events NES

– Sports clubs

– Sports and leisure equipment

– Games of skill

– Gaming and gambling machines

Metals, Machinery & Engineering

– Industrial subcontractors

– Maintenance and repair services for industrial equipment

Minerals

– Mining, quarrying and stoneworking plant and equipment

– Ores and minerals extraction equipment

– Rock drilling machinery and equipment

– Underground mining machinery and equipment

– Ores and minerals

– Minerals, miscellaneous

Paper, Printing, Publishing

– Printing equipment. Office and shop equipment

– Office machinery and equipment NES

– Publicity panels

– Signs

Retail & Trader

– General traders, department and retail stores

– Department and chain stores

– Retail trade

– Retail trade, coal and fuels

– Wholesale trade

Transport & Logistics

– Means of transport

– Motor vehicle maintenance and repair services

– Transportation and logistics services

– Road haulage, bulk
– Road haulage, part loads
– Road transport services classified by type of freight
– Warehouses and storage sites