28.99.Z - Manufacture of other special-purpose machinery n.e.c.
33.14.Z - Repair and maintenance of electrical equipment
33.20.Z - Installation of industrial machinery and equipment
35.11.Z - Production of electricity from non-renewable sources
35.12.Z - Transmission of electricity
35.13.Z - Transmission of electricity
35.14.Z - Distribution of electricity
42.21.Z - Construction of utility projects for fluids
42.22.Z - Construction of utility projects for electricity and telecommunications
42.99.Z - Construction of other civil engineering projects n.e.c.
43.12.Z - Site preparation
43.13.Z - Test drilling and boring
43.21.Z - Electrical installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.91.Z - Masonry and bricklaying activities
43.99.Z - Other specialised construction activities n.e.c.
68.10.Z - Buying and selling of own real estate
68.20.Z - Rental and operating of own or leased real estate
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
72.19.Z - Other research and experimental development on natural sciences and engineering
74.10.Z - Specialised design activities
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
96.09.Z - Other personal service activities not elsewhere classified
