68.20.Z - Rental and operating of own or leased real estate
41.20.Z - Building works related to erection of residential and non-residential buildings
70.22.Z - Business and other management consultancy activities
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
77.33.Z - Rental and leasing of office machinery, equipment and computers
82.11.Z - Office administrative service activities
82.19.Z - Photocopying, document preparation and other specialised office support activities
82.30.Z - Organisation of conventions and trade shows
82.99.Z - Other business support service activities not elsewhere classified
91.01.B - Archives activities