GRZEGORZ KRZYŻANIAK

71.12.Z - Engineering activities and related technical consultancy

26.20.Z - Manufacture of computers and peripheral equipment

26.30.Z - Manufacture of (tele)communication equipment

27.12.Z - Manufacture of electrical distribution and control apparatus

33.14.Z - Repair and maintenance of electrical devices

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

43.21.Z - Installation of electrical systems

43.29.Z - Specialized construction works

46.43.Z - Wholesale trade of electrical household goods

46.52.Z - Wholesale trade

47.41.Z - Retail trade

47.42.Z - Retail trade

47.54.Z - Retail sale of electrical household appliances

47.91.Z - Intermediary retail sale, non-specialized

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

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

74.10.Z - Specialized design activities

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

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

95.21.Z - Repair and maintenance of electronic equipment for general use