Grzegorz Hauke MEGA SYSTEM

43.21.Z - Installation of electrical systems

26.20.Z - Manufacture of computers and peripheral equipment

33.14.Z - Repair and maintenance of electrical devices

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

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

43.24.Z - Installation of other building systems

46.43.Z - Wholesale trade of electrical household goods

46.50.Z - Wholesale trade of information and communication technology devices

47.12.Z - Other non-specialized retail trade

47.40.Z - Retail sale of information and communication technology equipment

62.90.Z - Other IT and computer-related services

66.22.Z - Insurance agent and broker activities

66.29.Z - Activities supporting insurance and pension funds, not elsewhere classified

71.12.B - Engineering activities and related technical consultancy

74.99.Z - All other professional, scientific and technical activities, not elsewhere classified

80.01.Z - Detective activities and personal security services

80.09.Z - Other security activities, not elsewhere classified

81.10.Z - Auxiliary activities related to maintaining buildings

81.21.Z - General cleaning of buildings

81.22.B - Other cleaning of buildings and industrial premises, not elsewhere classified

81.23.A - Disinfection, pest control, and rodent extermination services

81.23.B - Other cleaning services, not elsewhere classified

81.30.Z - Landscaping services

82.99.B - Other business support activities, not elsewhere classified

95.10.Z - Repair and maintenance of computers and telecommunications equipment

96.99.Z - Other individual services not classified elsewhere