72.20.Z - Research and experimental development on social sciences and humanities
41.20.Z - Building works related to erection of residential and non-residential buildings
58.11.Z - Publishing of books
63.12.Z - Web portals
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
77.33.Z - Rental and leasing of office machinery, equipment and computers
82.30.Z - Organisation of conventions and trade shows
85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
85.60.Z - Educational support activities
91.03.Z - Operation of historical sites and buildings and similar visitor attractions
