JAN HELAK USŁUGI BUDOWLANE, DORADZTWO I NADZORY

71.11.Z - Architectural activities

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

41.20.Z - Building works related to erection of residential and non-residential buildings

42.11.Z - Works related to construction of roads and motorways

42.12.Z - Works related to construction of railways and underground railways

42.13.Z - Works related to construction of bridges and tunnels

43.11.Z - Demolition

43.12.Z - Site preparation

43.99.Z - Other specialised construction activities not elsewhere classified

70.22.Z - Business and other management consultancy activities