73.11.Z - Activities of advertising agencies
62.0 - Computer programming, consultancy and related activities
63.1 - Computing infrastructure, data processing, hosting and related activities
63.9 - Web search portal activities and other information service activities
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
73.12.C - Intermediation in the sale of the place on advertising aims in electronic media (internet)
73.12.D - Intermediation in the sale of the place on advertising aims in other media
73.20.Z - Market research and public opinion polling
74.1 - Specialised design activities