74.90.Z - Other professional, scientific and technical activities not elsewhere classified
33.11.Z - Repair and maintenance of fabricated metal products
41.10.Z - Realization of building projects related to erection of buildings
41.20.Z - Building works related to erection of residential and non-residential buildings
42.22.Z - Works related to construction of telecommunications and electricity lines
43.21.Z - Electrical installation
43.31.Z - Plastering
70.22.Z - Business and other management consultancy activities
71.11.Z - Architectural activities
71.12.Z - Engineering activities and related technical consultancy
85.59.B - Other out-of-school forms of education, not elsewhere classified
