71.12.Z - Engineering activities and related technical consultancy
41.20.Z - Building works related to erection of residential and non-residential buildings
42.11.Z - Works related to construction of roads and motorways
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
43.21.Z - Electrical installation
43.29.Z - Other construction installation
71.11.Z - Architectural activities
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
81.10.Z - Buildings service support activities
81.30.Z - Landscape service activities
82.11.Z - Office administrative service activities
82.19.Z - Photocopying, document preparation and other specialised office support activities
82.99.Z - Other business support service activities not elsewhere classified
