43.21.Z - Electrical installation
47.43.Z - Retail sale of audio and video equipment in specialised stores
95.12.Z - Repair and maintenance of (tele)communication equipment
95.11.Z - Repair and maintenance of computers and peripheral equipment
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
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
61.30.Z - Satellite telecommunications activities
61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities
27.33.Z - Manufacture of installing equipment
47.42.Z - Retail sale of telecommunications equipment in specialised stores
47.41.Z - Retail sale of computers, peripheral units and software in specialised stores
46.52.Z - Wholesale of electronic and telecommunications equipment and parts thereof
46.51.Z - Wholesale of computers, peripheral equipment and software
43.99.Z - Other specialised construction activities not elsewhere classified
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
42.22.Z - Works related to construction of telecommunications and electricity lines
33.19.Z - Repair and maintenance of other equipment
33.14.Z - Repair and maintenance of electrical equipment
