42.22.Z - Works related to construction of telecommunications and electricity lines
61.30.Z - Satellite telecommunications activities
95.12.Z - Repair and maintenance of (tele)communication equipment
95.11.Z - Repair and maintenance of computers and peripheral equipment
77.39.Z - Rental and leasing of other machinery, equipment and tangible goods not elsewhere classified
77.32.Z - Rental and leasing of construction machinery and equipment
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
71.20.B - Other technical testing and analysis
71.12.Z - Engineering activities and related technical consultancy
71.11.Z - Architectural activities
61.90.Z - Other telecommunications activities
41.20.Z - Building works related to erection of residential and non-residential buildings
61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities
61.10.Z - Wired telecommunications activities
46.52.Z - Wholesale of electronic and telecommunications equipment and parts thereof
46.51.Z - Wholesale of computers, peripheral equipment and software
43.39.Z - Other building completion and finishing
43.29.Z - Other construction installation
43.21.Z - Electrical installation
43.12.Z - Site preparation
42.21.Z - Works related to construction of transmission pipelines and distribution networks
