70.10.Z - Activities of head office and holding companies, excluding financial holding companies
42.22.Z - Construction of utility projects for electricity and telecommunications
46.5 - Wholesale of information and communication equipment
47.4 - Retail sale of information and communication equipment
61 - Telecommunication
62 - Computer programming, consultancy and related activities
63 - Computing infrastructure, data processing, hosting and other information service activities
70.2 - Business and other management consultancy activities
82.1 - Office administrative and support activities
95.1 - Repair and maintenance of computers and communication equipment