SB SYSTEM Sebastian Biernacki

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

16.10.Z - Sawmill products, wood processing and finishing

38.11.Z - Collection of non-hazardous waste

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

43.11.Z - Demolition and destruction of buildings

43.12.Z - Site preparation for construction

43.13.Z - Performing excavations and geological-engineering drilling

43.21.Z - Installation of electrical systems

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

43.29.Z - Specialized construction works

43.39.Z - Specialized construction works

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

61.30.Z - Telecommunications

61.90.Z - Activities in other telecommunications fields

81.21.Z - General cleaning of buildings

81.22.Z - Other cleaning of buildings and industrial premises

81.29.Z - Services related to maintaining buildings and landscaping

81.30.Z - Landscaping services