42.21.Z - Works related to construction of transmission pipelines and distribution networks
61.90.Z - Other telecommunications activities
95.12.Z - Repair and maintenance of (tele)communication equipment
77.32.Z - Rental and leasing of construction machinery and equipment
77.12.Z - Rental and leasing of other motor vehicle, excluding motorcycles
77.11.Z - Rental and leasing of cars and light motor vehicles
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
74.10.Z - Specialised design activities
62.09.Z - Other information technology and computer service activities
62.03.Z - Computer facilities management activities
62.02.Z - Computer consultancy activities
62.01.Z - Computer programming activities
42.22.Z - Works related to construction of telecommunications and electricity lines
61.30.Z - Satellite telecommunications activities
61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities
61.10.Z - Wired telecommunications activities
43.29.Z - Other construction installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.21.Z - Electrical installation
43.12.Z - Site preparation
43.11.Z - Demolition
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
42.91.Z - Works related to construction of water projects
