C4B Dariusz Oliwa

46.50.Z - Wholesale trade of information and communication technology devices

43.21.Z - Installation of electrical systems

47.40.Z - Retail sale of information and communication technology equipment

58.29.Z - Publishing of other software

62.20.A - IT consulting and IT equipment management activities

62.20.B - IT consulting and IT equipment management activities

62.90.Z - Other IT and computer-related services

63.10.A - Services related to computing infrastructure, data processing, website management (hosting), and related activities

74.99.Z - All other professional, scientific and technical activities, not elsewhere classified

77.33.Z - Rental and leasing of office machinery and equipment, including computers

82.10.Z - Office administrative support activities, including related services

95.10.Z - Repair and maintenance of computers and telecommunications equipment