73.11.Z - Advertising agencies activities
73.12.C - Intermediation in the sale of the place on advertising aims in electronic media (internet)
63.12.Z - Web portals
63.99.Z - Other information service activities not elsewhere classified
68.10.Z - Buying and selling of own real estate
68.20.Z - Rental and operating of own or leased real estate
68.31.Z - Real estate agencies
68.32.Z - Management of real estate on a fee or contract basis
73.12.A - Intermediation in the sale of time and place on advertising aims in the radio and television
73.12.B - Intermediation in the sale of the place on advertising aims in printed media
63.11.Z - Data processing, hosting and related activities
73.12.D - Intermediation in the sale of the place on advertising aims in other media
74.10.Z - Specialised design activities
74.20.Z - Photographic activities
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
82.19.Z - Photocopying, document preparation and other specialised office support activities
82.20.Z - Activities of call centres
82.30.Z - Organisation of conventions and trade shows
41.10.Z - Realization of building projects related to erection of buildings
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
59.11.Z - Motion picture, video and television programme production activities
58.19.Z - Other publishing activities
58.14.Z - Publishing of journals and periodicals
58.13.Z - Publishing of newspapers
58.11.Z - Book publishing
47.99.Z - Other retail sale not in stores, stalls or markets
47.91.Z - Retail sale via mail order houses or via internet
46.52.Z - Wholesale of electronic and telecommunications equipment and parts thereof
46.51.Z - Wholesale of computers, peripheral equipment and software
43.21.Z - Electrical installation
42.22.Z - Works related to construction of telecommunications and electricity lines