71.12.Z - Engineering activities and related technical consultancy
63.11.Z - Data processing, hosting and related activities
95.12.Z - Repair and maintenance of (tele)communication equipment
95.11.Z - Repair and maintenance of computers and peripheral equipment
85.59.B - Other out-of-school forms of education, not elsewhere classified
80.20.Z - Security systems service activities
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
72.19.Z - Other research and experimental development on natural sciences and engineering
71.20.B - Other technical testing and analysis
71.11.Z - Architectural activities
70.22.Z - Business and other management consultancy activities
68.31.Z - Real estate agencies
63.99.Z - Other information service activities not elsewhere classified
63.91.Z - News agency activities
63.12.Z - Web portals
33.14.Z - Repair and maintenance of electrical equipment
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
61.10.Z - Wired telecommunications activities
47.59.Z - Retail sale of furniture, lighting equipment and other household articles in specialised stores
47.43.Z - Retail sale of audio and video equipment in specialised stores
47.42.Z - Retail sale of telecommunications equipment in specialised stores
46.52.Z - Wholesale of electronic and telecommunications equipment and parts thereof
43.21.Z - Electrical installation
42.22.Z - Works related to construction of telecommunications and electricity lines
41.10.Z - Realization of building projects related to erection of buildings