43.21.Z - Electrical installation
41 - Construction of residential and non-residential buildings
42.22.Z - Construction of utility projects for electricity and telecommunications
43 - Specialised construction activities
46.90 - Non-specialised wholesale trade
62.01 - Computer programming activities
66.19 - Other activities auxiliary to financial services, except insurance and pension funding
71.12.Z - Engineering activities and related technical consultancy
74.10.Z - Specialised design activities
77.32.Z - Rental and leasing of construction and civil engineering machinery and equipment