09.90.Z - Support activities for other mining and quarrying
26.11.Z - Manufacture of electronic components
26.12.Z - Manufacture of loaded electronic boards
26.20.Z - Manufacture of computers and peripheral equipment
26.30.Z - Manufacture of communication equipment
26.51.Z - Manufacture of instruments and appliances for measuring, testing and navigation
27.90.Z - Manufacture of other electrical equipment
28.99.Z - Manufacture of other special-purpose machinery n.e.c.
33.13.Z - Repair and maintenance of electronic and optical equipment
33.14.Z - Repair and maintenance of electrical equipment
33.20.Z - Installation of industrial machinery and equipment
42.13.Z - Construction of bridges and tunnels
42.91.Z - Construction of water projects
42.99.Z - Construction of other civil engineering projects n.e.c.
43.29.Z - Other construction installation
43.99.Z - Other specialised construction activities n.e.c.
46.52.Z - Wholesale of electronic and telecommunications equipment and parts thereof
46.63.Z - Wholesale of mining, construction and civil engineering machinery
47.91.Z - Intermediation service activities for non-specialised retail sale
47.99.Z - Other retail sale not in stores, stalls or markets
62.01.Z - Computer programming activities
62.02.Z - Computer consultancy activities
62.03.Z - Computer facilities management activities
63.99.Z - Other information service activities not elsewhere classified
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
77.39.Z - Rental and leasing of other machinery, equipment and tangible goods n.e.c.
77.40.Z - Leasing of intellectual property and similar products, except copyrighted works
85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
95.11.Z - Repair and maintenance of computers and peripheral equipment
95.12.Z - Repair and maintenance of (tele)communication equipment
96.09.Z - Other personal service activities not elsewhere classified