71.12.Z - Engineering activities and related technical consultancy
33.14.Z - Repair and maintenance of electrical equipment
33.20.Z - Installation of industrial machinery and equipment and outfit
42.21.Z - Works related to construction of transmission pipelines and distribution networks
42.22.Z - Works related to construction of telecommunications and electricity lines
43.13.Z - Test drilling and boring
43.21.Z - Electrical installation
43.29.Z - Other construction installation
43.99.Z - Other specialised construction activities not elsewhere classified
71.20.B - Other technical testing and analysis
77.34.Z - Rental and leasing of water transport equipment
80.20.Z - Security systems service activities
95.12.Z - Repair and maintenance of (tele)communication equipment
