71.12.Z - Engineering activities and related technical consultancy
43.22.Z - Plumbing, heat and air-conditioning installation
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
74.10.Z - Specialised design activities
71.20.B - Other technical testing and analysis
71.11.Z - Architectural activities
47.91.Z - Retail sale via mail order houses or via internet
47.19.Z - Other retail sale in non-specialised stores
46.74.Z - Wholesale of hardware and plumbing and heating equipment and supplies
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
46.69.Z - Wholesale of other machinery and equipment
46.63.Z - Wholesale of mining, construction and civil engineering machinery
43.99.Z - Other specialised construction activities not elsewhere classified
43.29.Z - Other construction installation
33.14.Z - Repair and maintenance of electrical equipment
43.21.Z - Electrical installation
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
42.21.Z - Works related to construction of transmission pipelines and distribution networks
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
33.20.Z - Installation of industrial machinery and equipment and outfit
33.19.Z - Repair and maintenance of other equipment