EXPERT Biuro Systemów Elektronicznych Marek Rysz

43.21.Z - Installation of electrical systems

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

43.24.Z - Installation of other building systems

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

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

62.20.B - IT consulting and IT equipment management activities

62.90.Z - Other IT and computer-related services

71.12.B - Engineering activities and related technical consultancy

80.09.Z - Other security activities, not elsewhere classified

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