4NET S.C. Jacek Klemczak

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

33.14.Z - Repair and maintenance of electrical equipment

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

43.21.Z - Electrical installation

43.31.Z - Plastering

43.32.Z - Joinery installation

43.33.Z - Floor and wall covering

43.34.Z - Painting and glazing

43.39.Z - Other building completion and finishing

43.91.Z - Roofing activities

43.99.Z - Other specialised construction activities not elsewhere classified

46.73.Z - Wholesale of wood, construction materials and sanitary equipment

47.99.Z - Other retail sale not in stores, stalls or markets

49.41.Z - Freight transport by road

61.10.Z - Wired telecommunications activities

61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities

61.90.Z - Other telecommunications activities

62.01.Z - Computer programming activities

62.03.Z - Computer facilities management activities

62.09.Z - Other information technology and computer service activities