70.10.Z - Activities of head office and holding companies, excluding financial holding companies
68.20.Z - Rental and operating of own or leased real estate
70.22.Z - Business and other management consultancy activities
71.12.Z - Engineering activities and related technical consultancy
77.40.Z - Leasing of intellectual property and similar products, except copyrighted works
78.10.Z - Activities of employment placement agencies
78.30.Z - Other human resources provision
82.11.Z - Office administrative service activities
85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
88.91.Z - Child day-care activities
