71.12.B - Other activities in the field of engineering and related technical consulting
42.21.Z - Construction of utility projects for fluids
42.22.Z - Construction of utility projects for electricity and telecommunications
42.91.Z - Construction of water projects
42.99.Z - Construction of other civil engineering projects n.e.c.
43.11.Z - Demolition
43.12.Z - Site preparation
43.22.Z - Plumbing, heat and air-conditioning installation
43.24.Z - Other construction installation
43.50.Z - Specialised construction activities in civil engineering
68.12.C - Execution of other construction projects
71.20.B - Inspection and issuance of opinions on the technical condition of chimneys and ventilation ducts
71.20.C - Other technical research and analyses
72.10.Z - Research and experimental development on natural sciences and engineering
77.21.Z - Rental and leasing of recreational and sports goods
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
