PROTON INSTAL SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

43.21.Z - Electrical installation

26.11.Z - Manufacture of electronic components

27.12.Z - Manufacture of electricity distribution and control apparatus

28.29.Z - Manufacture of other general-purpose machinery notelsewhere classified

41.10.Z - Realization of building projects related to erection of buildings

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

43.22.Z - Plumbing, heat and air-conditioning installation

46.12.Z - Agents involved in the sale of fuels, ores, metals and industrial chemicals

61.10.Z - Wired telecommunications activities

62.09.Z - Other information technology and computer service activities