Michał Czajka MC SOLUTIONS

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

33.14.Z - Repair and maintenance of electrical devices

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

41.20.Z - Construction work related to the construction of residential and non-residential buildings

42.22.Z - Works related to the construction of telecommunications and electrical lines

43.21.Z - Installation of electrical systems

46.14.Z - Activity of agents involved in wholesale trade of machinery, industrial equipment, ships, and aircraft

46.51.Z - Wholesale trade

46.52.Z - Wholesale trade

47.21.Z - Retail trade of fruits and vegetables

47.41.Z - Retail trade

47.42.Z - Retail trade

47.43.Z - Retail trade

47.64.Z - Retail sale of games and toys

47.91.Z - Intermediary retail sale, non-specialized

49.41.Z - Road freight transport

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

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

63.91.Z - Portal and search engine activities

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

74.90.Z - Other professional, scientific and technical activities, not elsewhere classified

77.32.Z - Rental and leasing of construction machinery and equipment

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

77.39.Z - Rental and leasing of other machinery, equipment, and tangible assets, not elsewhere classified

82.20.Z - Call center activities

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