71.20.C - Other technical research and analyses
41.00.A - Construction of residential buildings
41.00.B - Construction of non-residential buildings
43.21.Z - Electrical installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.23.Z - Installation of insulation
43.24.Z - Other construction installation
43.31.Z - Plastering
43.32.Z - Joinery installation
43.35.Z - Other building completion and finishing
43.41.Z - Roofing activities
43.60.Z - Intermediation service activities for specialised construction services
43.99.Z - Other specialised construction activities n.e.c.
62.90.Z - Other information technology and computer service activities
71.12.B - Other activities in the field of engineering and related technical consulting
85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
85.59.D - Other non-school forms of education, not elsewhere classified
