71.12.Z - Engineering activities and related technical consultancy
41.10.Z - Realization of building projects related to erection of buildings
41.20.Z - Building works related to erection of residential and non-residential buildings
70.21.Z - Public relations and communication activities
71.20.B - Inspection and issuance of opinions on the technical condition of chimneys and ventilation ducts
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
82.11.Z - Office administrative service activities
84.25.Z - Fire service activities
85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
