74.90.Z - Other professional, scientific and technical activities not elsewhere classified
58.14.Z - Publishing of journals and periodicals
63.99.Z - Other information service activities not elsewhere classified
70.21.Z - Public relations and communication activities
70.22.Z - Business and other management consultancy activities
82.30.Z - Organisation of conventions and trade shows
82.99.Z - Other business support service activities not elsewhere classified
85.60.Z - Educational support activities
94.12.Z - Activities of professional membership organisations
94.99.Z - Activities of other membership organisations n.e.c.
