71.12.Z - Engineering activities and related technical consultancy
41.10.Z - Realization of building projects related to erection of buildings
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
42.91.Z - Works related to construction of water projects
43.12.Z - Site preparation
43.13.Z - Test drilling and boring
43.21.Z - Electrical installation
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
71.11.Z - Architectural activities
71.20.B - Other technical testing and analysis
74.10.Z - Specialised design activities
