71.12.Z - Engineering activities and related technical consultancy
41.20.Z - Building works related to erection of residential and non-residential buildings
42.99.Z - Construction of other civil engineering projects n.e.c.
43.99.Z - Other specialised construction activities n.e.c.
70.22.Z - Business and other management consultancy activities
71.11.Z - Architectural activities
71.20.B - Inspection and issuance of opinions on the technical condition of chimneys and ventilation ducts
72.19.Z - Other research and experimental development on natural sciences and engineering
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
77.39.Z - Rental and leasing of other machinery, equipment and tangible goods n.e.c.