71.12.Z - Engineering activities and related technical consultancy
43.21.Z - Electrical installation
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
72.19.Z - Other research and experimental development on natural sciences and engineering
71.20.B - Other technical testing and analysis
71.11.Z - Architectural activities
70.22.Z - Business and other management consultancy activities
68.32.Z - Management of real estate on a fee or contract basis
47.99.Z - Other retail sale not in stores, stalls or markets
46.90.Z - Non-specialised wholesale trade
46.75.Z - Wholesale of chemical products
46.74.Z - Wholesale of hardware and plumbing and heating equipment and supplies
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
46.63.Z - Wholesale of mining, construction and civil engineering machinery
43.99.Z - Other specialised construction activities not elsewhere classified
43.22.Z - Plumbing, heat and air-conditioning installation
33.11.Z - Repair and maintenance of fabricated metal products
43.13.Z - Test drilling and boring
43.11.Z - Demolition
42.22.Z - Works related to construction of telecommunications and electricity lines
42.21.Z - Works related to construction of transmission pipelines and distribution networks
42.11.Z - Works related to construction of roads and motorways
41.20.Z - Building works related to erection of residential and non-residential buildings
38.21.Z - Treatment and disposal of non-hazardous waste
38.11.Z - Collection of non-hazardous waste
37.00.Z - Sewage disposal and treatment
36.00.Z - Water collection, treatment and supply
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
