41.20.Z - Building works related to erection of residential and non-residential buildings
43.33.Z - Floor and wall covering
95.11.Z - Repair and maintenance of computers and peripheral equipment
81.21.Z - General cleaning of buildings
80.20.Z - Security systems service activities
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
68.32.Z - Management of real estate on a fee or contract basis
63.11.Z - Data processing, hosting and related activities
62.09.Z - Other information technology and computer service activities
62.03.Z - Computer facilities management activities
62.02.Z - Computer consultancy activities
61.10.Z - Wired telecommunications activities
43.99.Z - Other specialised construction activities not elsewhere classified
43.91.Z - Roofing activities
43.39.Z - Other building completion and finishing
43.34.Z - Painting and glazing
33.12.Z - Repair and maintenance of machinery
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
43.11.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
42.11.Z - Works related to construction of roads and motorways
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
