Maciej Czerwonka Consulting

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

70.22.Z - Business and other management consultancy activities

78.10.Z - Activities of employment placement agencies

85.51.Z - Out-of-school forms of sports and leisure education

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

85.60.Z - Educational support activities