42.22.Z - Works related to construction of telecommunications and electricity lines
33.12.Z - Repair and maintenance of machinery
43.21.Z - Electrical installation
43.99.Z - Other specialised construction activities not elsewhere classified
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
47.91.Z - Retail sale via mail order houses or via internet
61.90.Z - Other telecommunications activities
62.09.Z - Other information technology and computer service activities
80.20.Z - Security systems service activities
80.30.Z - Investigation activities
95.11.Z - Repair and maintenance of computers and peripheral equipment
