74.90.Z - Other professional, scientific and technical activities not elsewhere classified
33.20.Z - Installation of industrial machinery and equipment
41.20.Z - Building works related to erection of residential and non-residential buildings
43.99.Z - Other specialised construction activities n.e.c.
63.99.Z - Other information service activities not elsewhere classified
70.22.Z - Business and other management consultancy activities
71.12.Z - Engineering activities and related technical consultancy
71.20.B - Inspection and issuance of opinions on the technical condition of chimneys and ventilation ducts
82.30.Z - Organisation of conventions and trade shows
82.99.Z - Other business support service activities not elsewhere classified