Piotr Kaczor

95.11.Z - Repair and maintenance of computers and peripheral equipment

26.51.Z - Manufacture of instruments and appliances for measuring, testing and navigation

32.99.Z - Other manufacturing notelsewhere classified

33.13.Z - Repair and maintenance of electronic and optical equipment

62.01.Z - Computer programming activities

62.02.Z - Computer consultancy activities

62.03.Z - Computer facilities management activities

62.09.Z - Other information technology and computer service activities

63.11.Z - Data processing, hosting and related activities

63.99.Z - Other information service activities not elsewhere classified

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

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

95.12.Z - Repair and maintenance of (tele)communication equipment