Klub Fm Piotr Niwald

90.01.Z - Performing arts activities

59.20.Z - Sound recording and music publishing activities

74.90.Z - Other professional, scientific and technical activities not elsewhere classified

85.59.B - Other out-of-school forms of education, not elsewhere classified

85.60.Z - Educational support activities

90.02.Z - Support activities to performing arts

93.29.A - Pozostała działalność rozrywkowa i rekreacyjna

93.29.B - Pozostała działalność rozrywkowa i rekreacyjna

96.09.Z - Other personal service activities not elsewhere classified