71.11.Z - Architectural activities
43.99.Z - Other specialised construction activities not elsewhere classified
81.29.Z - Other cleaning activities
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
71.20.A - Food quality testing and analysis
71.12.Z - Engineering activities and related technical consultancy
47.99.Z - Other retail sale not in stores, stalls or markets
47.91.Z - Retail sale via mail order houses or via internet
37.00.Z - Sewage disposal and treatment
43.29.Z - Other construction installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.21.Z - Electrical installation
43.12.Z - Site preparation
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
41.20.Z - Building works related to erection of residential and non-residential buildings
41.10.Z - Realization of building projects related to erection of buildings
