85.60.Z - Educational support activities
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
78.10.Z - Activities of employment placement agencies
82.30.Z - Organisation of conventions and trade shows
82.99.Z - Other business support service activities not elsewhere classified
85.52.Z - Cultural education
85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
