Piotr Wasilewski

70.22.Z - Business and other management consultancy activities

46.90.Z - Non-specialised wholesale trade

72.19.Z - Other research and experimental development on natural sciences and engineering

81.21.Z - General cleaning of buildings

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

85.52.Z - Out-of-school forms of cultural education

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

85.60.Z - Educational support activities

86.90.E - Other human health activities notelsewhere classified