43.22.Z - Plumbing, heat and air-conditioning installation
43.21.Z - Electrical installation
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
74.10.Z - Specialised design activities
71.20.B - Other technical testing and analysis
71.12.Z - Engineering activities and related technical consultancy
71.11.Z - Architectural activities
46.63.Z - Wholesale of mining, construction and civil engineering machinery
46.19.Z - Agents involved in the sale of a variety of goods
46.13.Z - Agents involved in the sale of timber and building materials
43.99.Z - Other specialised construction activities not elsewhere classified
43.91.Z - Roofing activities
43.34.Z - Painting and glazing
43.33.Z - Floor and wall covering
43.32.Z - Joinery installation
43.31.Z - Plastering
43.29.Z - Other construction installation
25.11.Z - Manufacture of metal structures and parts of structures
43.13.Z - Test drilling and boring
43.12.Z - Site preparation
43.11.Z - Demolition
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
42.91.Z - Works related to construction of water projects
42.21.Z - Works related to construction of transmission pipelines and distribution networks
33.19.Z - Repair and maintenance of other equipment
33.17.Z - Repair and maintenance of other transport equipment
33.14.Z - Repair and maintenance of electrical equipment
33.12.Z - Repair and maintenance of machinery
25.99.Z - Manufacture of other fabricated metal products not elsewhere classified
25.62.Z - Mechanical working of metal elements
25.61.Z - Treatment and coating of metals
25.12.Z - Manufacture of metal elements of building woodwork