43.22.Z - Plumbing, heat and air-conditioning installation
33.14.Z - Repair and maintenance of electrical equipment
33.20.Z - Installation of industrial machinery and equipment and outfit
35.11.Z - Production of electricity
35.30.Z - Steam, hot water and air conditioning manufacturing and supply
36.00.Z - Water collection, treatment and supply
37.00.Z - Sewage disposal and treatment
42.21.Z - Works related to construction oftransmission pipelines and distribution networks
42.22.Z - Works related to construction of telecommunications and electricity lines
42.91.Z - Works related to construction of water projects
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
43.11.Z - Demolition
43.12.Z - Site preparation
43.13.Z - Test drilling and boring
43.21.Z - Electrical installation
43.29.Z - Other construction installation
43.39.Z - Other building completion and finishing
43.99.Z - Other specialised construction activities not elsewhere classified
46.69.Z - Wholesale of other machinery and equipment
47.91.Z - Retail sale via mail order houses or via Internet
72.19.Z - Other research and experimental development on natural sciences and engineering
85.59.B - Other out-of-school forms of education, not elsewhere classified
85.60.Z - Educational support activities