85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
26.30.Z - Manufacture of communication equipment
58.14.Z - Publishing of journals and periodicals
63.99.Z - Other information service activities not elsewhere classified
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
80.20.Z - Security systems service activities
80.30.Z - Investigation activities
82.30.Z - Organisation of conventions and trade shows
82.91.Z - Activities of collection agencies and credit bureaus
85.60.Z - Educational support activities