71.11.Z - Architectural activities
43.29.Z - Other construction installation
95.12.Z - Repair and maintenance of (tele)communication equipment
80.20.Z - Security systems service activities
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
71.12.Z - Engineering activities and related technical consultancy
47.42.Z - Retail sale of telecommunications equipment in specialised stores
47.41.Z - Retail sale of computers, peripheral units and software in specialised stores
46.90.Z - Non-specialised wholesale trade
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
46.52.Z - Wholesale of electronic and telecommunications equipment and parts thereof
46.51.Z - Wholesale of computers, peripheral equipment and software
43.99.Z - Other specialised construction activities not elsewhere classified
43.91.Z - Roofing activities
33.11.Z - Repair and maintenance of fabricated metal products
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
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
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
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
33.14.Z - Repair and maintenance of electrical equipment
33.13.Z - Repair and maintenance of electronic and optical equipment
33.12.Z - Repair and maintenance of machinery
