71.12.Z - Engineering activities and related technical consultancy
43.21.Z - Electrical installation
95.11.Z - Repair and maintenance of computers and peripheral equipment
74.10.Z - Specialised design activities
71.20.B - Other technical testing and analysis
62.09.Z - Other information technology and computer service activities
62.03.Z - Computer facilities management activities
62.02.Z - Computer consultancy activities
62.01.Z - Computer programming activities
61.30.Z - Satellite telecommunications activities
61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities
43.29.Z - Other construction installation
43.22.Z - Plumbing, heat and air-conditioning installation
27.11.Z - Manufacture of electric motors, generators and transformers
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
42.22.Z - Works related to construction of telecommunications and electricity lines
41.20.Z - Building works related to erection of residential and non-residential buildings
41.10.Z - Realization of building projects related to erection of buildings
33.20.Z - Installation of industrial machinery and equipment and outfit
33.14.Z - Repair and maintenance of electrical equipment
33.13.Z - Repair and maintenance of electronic and optical equipment
33.12.Z - Repair and maintenance of machinery
27.90.Z - Manufacture of other electrical equipment
27.33.Z - Manufacture of installing equipment
27.12.Z - Manufacture of electricity distribution and control apparatus