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
43.29.Z - Other construction installation
43.39.Z - Other building completion and finishing
68.10.Z - Buying and selling of own real estate
68.20.Z - Rental and operating of own or leased real estate
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
82.11.Z - Office administrative service activities
82.99.Z - Other business support service activities not elsewhere classified
85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
