41.20.Z - Building works related to erection of residential and non-residential buildings
23.61.Z - Manufacture of concrete products for construction purposes
42.22.Z - Works related to construction of telecommunications and electricity lines
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
43.22.Z - Plumbing, heat and air-conditioning installation
43.99.Z - Other specialised construction activities not elsewhere classified
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
68.20.Z - Rental and operating of own or leased real estate
71.11.Z - Architectural activities
71.12.Z - Engineering activities and related technical consultancy
77.32.Z - Rental and leasing of construction machinery and equipment
85.51.Z - Out-of-school forms of sports and leisure education
