43.21.Z - Electrical installation
26.30.Z - Manufacture of (tele)communication equipment
26.51.Z - Manufacture of instruments and appliances for measuring, testing and navigation
27.12.Z - Manufacture of electricity distribution and control apparatus
43.22.Z - Plumbing, heat and air-conditioning installation
43.29.Z - Other construction installation
47.99.Z - Other retail sale not in stores, stalls or markets
61.10.Z - Wired telecommunications activities
61.20.Z - Wireless telecommunications activities, excluding satellite 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
68.32.Z - Management of real estate on a fee or contract basis
71.12.Z - Engineering activities and related technical consultancy
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
