NET-SI SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

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

27.31.Z - Manufacture of optical fiber cables

42.21.Z - Works related to the construction of transmission pipelines and distribution networks

43.12.Z - Site preparation for construction

43.21.Z - Installation of electrical systems

47.42.Z - Retail trade

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