E.S.Z. - Klaudiusz Cembrzyński

80.20.Z - Detective and security activities

18.20.Z - Reproduction of recorded media

33.12.Z - Repair and maintenance of machinery

43.21.Z - Installation of electrical systems

43.99.Z - Other specialized construction works, not classified elsewhere

46.51.Z - Wholesale trade

46.52.Z - Wholesale trade

47.91.Z - Intermediary retail sale, non-specialized

52.21.Z - Support activities for land transport

61.30.Z - Telecommunications

61.90.Z - Activities in other telecommunications fields

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

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

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

96.09.Z - Individual service activities