43.21.Z - Electrical installation
33.13.Z - Repair and maintenance of electronic and optical equipment
33.20.Z - Installation of industrial machinery and equipment and outfit
42.22.Z - Works related to construction of telecommunications and electricity lines
43.99.Z - Other specialised construction activities not elsewhere classified
46.52.Z - Wholesale of electronic and telecommunications equipment and parts thereof
47.41.Z - Retail sale of computers, peripheral units and software in specialised stores
47.42.Z - Retail sale of telecommunications equipment in specialised stores
47.43.Z - Retail sale of audio and video equipment in specialised stores
47.91.Z - Retail sale via mail order houses or via internet
61.10.Z - Wired telecommunications activities
61.90.Z - Other telecommunications activities
62.01.Z - Computer programming activities
62.02.Z - Computer consultancy activities
62.03.Z - Computer facilities management activities
62.09.Z - Other information technology and computer service activities
95.12.Z - Repair and maintenance of (tele)communication equipment
