WIESŁAW ZIARKO "WIEDZA"

69.20.Z - Accounting, bookkeeping and tax consultancy

70.21.Z - Head office activities and management consultancy

70.22.Z - Head office activities and management consultancy

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

82.11.Z - Office administrative support activities and other business support services

82.19.Z - Office administrative support activities and other business support services

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

85.59.B - Courses and training for acquiring knowledge, skills, and professional qualifications in non-school forms