Piechociński Consulting Janusz Piechociński

70.20.Z - Business and management consultancy activities

55.90.Z - Other accommodation services

73.20.Z - Market research and public opinion polling

73.30.B - Other public relations and communications activities

82.30.Z - Activities related to organizing fairs, exhibitions, and congresses

82.40.Z - Intermediary activities in business support services, not elsewhere classified

82.99.B - Other business support activities, not elsewhere classified

85.59.D - Other non-school forms of education, not classified elsewhere