42.22.Z - Construction of utility projects for electricity and telecommunications
43.99.Z - Other specialised construction activities n.e.c.
61.10 - Wired, wireless, and satellite telecommunication activities
61.20.Z - Telecommunication reselling activities and intermediation service activities for telecommunication
61.90 - Other telecommunication activities
62.2 - Computer consultancy and computer facilities management activities
62.9 - Other information technology and computer service activities
63.92.Z - Other information service activities
77.39 - Rental and leasing of other machinery, equipment and tangible goods n.e.c.
