HIGH TECHNOLOGY NETWORK SYSTEMS TOMASZ WIŚNIEWSKI

62.01.Z - Activities related to programming, IT consulting, and related activities

18.13.Z - Service activities related to printing preparation

33.20.Z - Installation of industrial machinery, equipment, and devices

43.21.Z - Installation of electrical systems

46.51.Z - Wholesale trade

47.41.Z - Retail trade

47.42.Z - Retail trade

47.43.Z - Retail trade

47.51.Z - Retail sale of textile products

47.91.Z - Intermediary retail sale, non-specialized

58.29.Z - Publishing of other software

61.10.Z - Activities in the field of wired, wireless, and satellite telecommunications

61.20.Z - Activities related to the resale of telecommunications services and telecommunications mediation

61.90.Z - Activities in other telecommunications fields

62.02.Z - Activities related to programming, IT consulting, and related activities

62.03.Z - Activities related to programming, IT consulting, and related activities

62.09.Z - Activities related to programming, IT consulting, and related activities

63.11.Z - Services related to computing infrastructure, data processing, website management (hosting), and other information services

63.12.Z - Services related to computing infrastructure, data processing, website management (hosting), and other information services

77.21.Z - Rental and leasing of recreational and sports equipment

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

82.19.Z - Office administrative support activities and other business support services

95.11.Z - Repair and maintenance of computers, personal and household goods, and motor vehicles, including motorcycles

95.12.Z - Repair and maintenance of computers, personal and household goods, and motor vehicles, including motorcycles