74.90.Z - Other professional, scientific and technical activities not elsewhere classified
42.11.Z - Works related to construction of roads and motorways
77.39.Z - Rental and leasing of other machinery, equipment and tangible goods not elsewhere classified
77.11.Z - Rental and leasing of cars and light motor vehicles
70.22.Z - Business and other management consultancy activities
49.41.Z - Freight transport by road
43.29.Z - Other construction installation
43.21.Z - Electrical installation
43.13.Z - Test drilling and boring
43.12.Z - Site preparation
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
42.22.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
42.12.Z - Works related to construction of railways and underground railways
08.11.Z - Quarrying of ornamental and building stone, limestone, gypsum, chalk and slate
41.20.Z - Building works related to erection of residential and non-residential buildings
41.10.Z - Realization of building projects related to erection of buildings
38.31.Z - Dismantling of wrecks
38.22.Z - Hazardous waste processing and neutralizing
38.21.Z - Treatment and disposal of non-hazardous waste
38.12.Z - Collection of hazardous waste
38.11.Z - Collection of non-hazardous waste
37.00.Z - Sewage disposal and treatment
36.00.Z - Water collection, treatment and supply
09.90.Z - Support activities for other mining and quarrying
08.99.Z - Other mining and quarrying not elsewhere classified
08.92.Z - Extraction of peat
08.91.Z - Mining of minerals for chemical industry and for production of fertilizers
08.12.Z - Operation of gravel and sand pits; mining of clays and kaolin