.exp Marek Byszewski

62.01.Z - Computer programming activities

58.19.Z - Other publishing activities

58.29.Z - Other software publishing

62.02.Z - Computer consultancy activities

62.03.Z - Computer facilities management activities

62.09.Z - Other information technology and computer service activities

70.22.Z - Business and other management consultancy activities

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

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

90.02.Z - Support activities to performing arts

93.11.Z - Operation of sports facilities

93.29.B - Pozostała działalność rozrywkowa i rekreacyjna