72.19.Z - Other research and experimental development on natural sciences and engineering
43.91.Z - Roofing activities
85.60.Z - Educational support activities
85.59.B - Other out-of-school forms of education, not elsewhere classified
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
71.12.Z - Engineering activities and related technical consultancy
71.11.Z - Architectural activities
47.99.Z - Other retail sale not in stores, stalls or markets
47.91.Z - Retail sale via mail order houses or via internet
47.52.Z - Retail sale of hardware, paints and glass in specialised stores
46.90.Z - Non-specialised wholesale trade
46.75.Z - Wholesale of chemical products
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
43.99.Z - Other specialised construction activities not elsewhere classified
23.99.Z - Manufacture of abrasive products and others non-metallic mineral products not elsewhere classified
43.39.Z - Other building completion and finishing
43.34.Z - Painting and glazing
43.33.Z - Floor and wall covering
43.32.Z - Joinery installation
43.31.Z - Plastering
43.29.Z - Other construction installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.21.Z - Electrical installation
43.13.Z - Test drilling and boring
43.12.Z - Site preparation
43.11.Z - Demolition
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
