Łukasz Czajkowski - Internet System

63.11.Z - Data processing, hosting and related activities

18.12.Z - Other printing

18.13.Z - Pre-press and pre-media services

43.22.Z - Plumbing, heat and air-conditioning installation

47.41.Z - Retail sale of computers, peripheral units and software in specialised stores

58.29.Z - Other software publishing

62.01.Z - Computer programming activities

62.02.Z - Computer consultancy activities

62.09.Z - Other information technology and computer service activities

63.12.Z - Web portals

71.11.Z - Architectural activities

73.11.Z - Advertising agencies activities

74.20.Z - Photographic activities

77.22.Z - Rental of video tapes and CDs, DVDs etc.

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

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