QUANTUM IT KRZYSZTOF SZOSTAK

62.09.Z - Other information technology and computer service activities

62.01.Z - Computer programming activities

62.03.Z - Computer facilities management activities

63.12.Z - Web portals

82.11.Z - Office administrative service activities

82.19.Z - Photocopying, document preparation and other specialised office support activities

82.99.Z - Other business support service activities not elsewhere classified

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

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

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