81.30.Z - Landscape service activities
43.12.Z - Site preparation
77.32.Z - Rental and leasing of construction machinery and equipment
71.11.Z - Architectural activities
68.20.Z - Rental and operating of own or leased real estate
49.41.Z - Freight transport by road
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
43.99.Z - Other specialised construction activities not elsewhere classified
43.91.Z - Roofing activities
43.31.Z - Plastering
43.29.Z - Other construction installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.13.Z - Test drilling and boring
08.12.Z - Operation of gravel and sand pits; mining of clays and kaolin
43.11.Z - Demolition
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
42.91.Z - Works related to construction of water projects
42.21.Z - Works related to construction of transmission pipelines and distribution networks
42.13.Z - Works related to construction of bridges and tunnels
42.11.Z - Works related to construction of roads and motorways
41.20.Z - Building works related to erection of residential and non-residential buildings
33.20.Z - Installation of industrial machinery and equipment and outfit
25.93.Z - Manufacture of wire products, chains and springs
23.61.Z - Manufacture of concrete products for construction purposes
09.90.Z - Support activities for other mining and quarrying