43.21.Z - Electrical installation
43.39.Z - Other building completion and finishing
74.10.Z - Specialised design activities
62.09.Z - Other information technology and computer service activities
62.03.Z - Computer facilities management activities
62.01.Z - Computer programming activities
61.90.Z - Other telecommunications activities
61.30.Z - Satellite telecommunications activities
61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities
61.10.Z - Wired telecommunications activities
49.41.Z - Freight transport by road
47.42.Z - Retail sale of telecommunications equipment in specialised stores
47.41.Z - Retail sale of computers, peripheral units and software in specialised stores
42.11.Z - Works related to construction of roads and motorways
43.34.Z - Painting and glazing
43.33.Z - Floor and wall covering
43.32.Z - Joinery installation
43.31.Z - Plastering
43.29.Z - Other construction installation
43.12.Z - Site preparation
43.11.Z - Demolition
42.22.Z - Works related to construction of telecommunications and electricity lines
42.21.Z - Works related to construction of transmission pipelines and distribution networks
42.13.Z - Works related to construction of bridges and tunnels
