71.12.Z - Engineering activities and related technical consultancy
41.10.Z - Realization of building projects related to erection of buildings
41.20.Z - Building works related to erection of residential and non-residential buildings
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
43.22.Z - Plumbing, heat and air-conditioning installation
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
46.74.Z - Wholesale of hardware and plumbing and heating equipment and supplies
47.52.Z - Retail sale of hardware, paints and glass in specialised stores
47.91.Z - Retail sale via mail order houses or via internet
68.10.Z - Buying and selling of own real estate
68.20.Z - Rental and operating of own or leased real estate
71.11.Z - Architectural activities
74.10.Z - Specialised design activities
