WOJCIECH TRZASKA-DURSKI

70.22.Z - Business and other management consultancy activities

26.20.Z - Manufacture of computers and peripheral equipment

47.91.Z - Retail sale via mail order houses or via Internet

47.99.Z - Other retail sale not in stores, stalls or markets

62.01.Z - Computer programming activities

71.20.B - Other technical testing and analysis

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