Nortel Norbert Rumpczyk

43.21.Z - Electrical installation

33.13.Z - Repair and maintenance of electronic and optical equipment

33.14.Z - Repair and maintenance of electrical equipment

33.15.Z - Repair and maintenance of ships and boats

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

43.99.Z - Other specialised construction activities not elsewhere classified

61.10.Z - Wired telecommunications activities

61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities

61.90.Z - Other telecommunications activities

62.02.Z - Computer consultancy activities

62.09.Z - Other information technology and computer service activities

80.20.Z - Security systems service activities

95.11.Z - Repair and maintenance of computers and peripheral equipment

95.12.Z - Repair and maintenance of (tele)communication equipment

95.21.Z - Repair and maintenance of consumer electronics

95.22.Z - Repair and maintenance of household appliances and home and garden equipment