62.01.Z - Computer programming activities
63.12.Z - Web portals
95.12.Z - Repair and maintenance of (tele)communication equipment
95.11.Z - Repair and maintenance of computers and peripheral equipment
82.11.Z - Office administrative service activities
77.40.Z - Leasing of intellectual property and similar products, except copyrighted works
77.33.Z - Rental and leasing of office machinery and equipment, including computers
73.20.Z - Market research and public opinion polling
73.12.D - Intermediation in the sale of the place on advertising aims in other media
73.12.C - Intermediation in the sale of the place on advertising aims in electronic media (internet)
73.12.B - Intermediation in the sale of the place on advertising aims in printed media
63.99.Z - Other information service activities not elsewhere classified
63.91.Z - News agency activities
18.13.Z - Pre-press and pre-media services
63.11.Z - Data processing, hosting and related activities
62.09.Z - Other information technology and computer service activities
62.03.Z - Computer facilities management activities
61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities
58.29.Z - Other software publishing
58.21.Z - Publishing of computer games
47.91.Z - Retail sale via mail order houses or via internet
47.41.Z - Retail sale of computers, peripheral units and software in specialised stores
42.22.Z - Works related to construction of telecommunications and electricity lines
18.20.Z - Reproduction of recorded media