71.12.Z - Engineering activities and related technical consultancy
61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities
95.12.Z - Repair and maintenance of (tele)communication equipment
95.11.Z - Repair and maintenance of computers and peripheral equipment
68.20.Z - Rental and operating of own or leased real estate
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
61.90.Z - Other telecommunications activities
33.12.Z - Repair and maintenance of machinery
61.10.Z - Wired telecommunications activities
43.29.Z - Other construction installation
43.21.Z - Electrical installation
42.22.Z - Works related to construction of telecommunications and electricity lines
41.20.Z - Building works related to erection of residential and non-residential buildings
33.20.Z - Installation of industrial machinery and equipment and outfit
33.14.Z - Repair and maintenance of electrical equipment
33.13.Z - Repair and maintenance of electronic and optical equipment
