JANUSZ WIŚNIEWSKI INSTALACJE ELEKTRYCZNE, PROJEKTY, KOSZTORYSY, NADZORY

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

27.12.Z - Manufacture of electricity distribution and control apparatus

33.14.Z - Repair and maintenance of electrical equipment

33.20.Z - Installation of industrial machinery and equipment and outfit

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

43.21.Z - Electrical installation

43.29.Z - Other construction installation

62.01.Z - Computer programming activities

62.02.Z - Computer consultancy activities

62.09.Z - Other information technology and computer service activities

70.22.Z - Business and other management consultancy activities

71.12.Z - Engineering activities and related technical consultancy

71.20.B - Other technical testing and analysis

80.20.Z - Security systems service activities

95.11.Z - Repair and maintenance of computers and peripheral equipment