74.90.Z - Other professional, scientific and technical activities not elsewhere classified
28.11.Z - Manufacture of engines and turbines, except aircraft, vehicle and cycle engines
28.99.Z - Manufacture of other special-purpose machinery n.e.c.
30.99.Z - Manufacture of other transport equipment n.e.c.
32.99.Z - Other manufacturing n.e.c.
46.14.Z - Activities of agents involved in the wholesale of machinery, industrial equipment, ships and aircraft
70.22.Z - Business and other management consultancy activities
71.11.Z - Architectural 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