74.90.Z - Other professional, scientific and technical activities not elsewhere classified
35.14.Z - Trade of electricity
35.23.Z - Trade of gaseous fuels through mains
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
73.20.Z - Market research and public opinion polling
82.30.Z - Organisation of conventions and trade shows
82.99.Z - Other business support service activities not elsewhere classified
85.59.B - Other out-of-school forms of education, not elsewhere classified
