85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
58.11.Z - Publishing of books
58.19.Z - Other publishing activities, except software publishing
63.99.Z - Other information service activities not elsewhere classified
72.20.Z - Research and experimental development on social sciences and humanities
73.20.Z - Market research and public opinion polling
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
82.30.Z - Organisation of conventions and trade shows
94.12.Z - Activities of professional membership organisations
96.09.Z - Other personal service activities not elsewhere classified