43.21.Z - Electrical installation
27.12.Z - Manufacture of electricity distribution and control apparatus
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
43.11.Z - Demolition
43.12.Z - Site preparation
43.22.Z - Plumbing, heat and air-conditioning installation
43.29.Z - Other construction installation
43.99.Z - Other specialised construction activities not elsewhere classified
69.20.Z - Accounting, bookkeeping and auditing activities; tax consultancy
71.11.Z - Architectural activities
71.12.Z - Engineering activities and related technical consultancy
71.20.B - Other technical testing and analysis
