IT Janusz Treszczyński

62.02.Z - Computer consultancy activities

26.11.Z - Manufacture of electronic components

26.12.Z - Manufacture of electronic printed circuits

26.20.Z - Manufacture of computers and peripheral equipment

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

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

33.14.Z - Repair and maintenance of electrical equipment

33.20.Z - Installation of industrial machinery and equipment and outfit

43.21.Z - Electrical installation

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

62.01.Z - Computer programming 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

71.12.Z - Engineering activities and related technical consultancy

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