BIURO INŻYNIERSKIE INFRASTRUKTURY KOLEJOWEJ "PROINFRA" WŁODZIMIERZ POPCZYK

71.12.B - Engineering activities and related technical consultancy

02.10.Z - Forest management and other forest-related activities, excluding logging

38.21.Z - Material recovery

42.11.Z - Works related to the construction of roads and highways

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

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

42.99.Z - Works related to the construction of other civil engineering and water engineering objects, not classified elsewhere

43.11.Z - Demolition and destruction of buildings

43.12.Z - Site preparation for construction

43.13.Z - Performing excavations and geological-engineering drilling

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

43.23.Z - Installation of insulation

43.35.Z - Performing other finishing construction works

43.41.Z - Performing roof structures and coverings

43.42.Z - Performing other specialized construction works related to the construction of buildings

43.50.Z - Specialized construction works in the field of civil and water engineering

43.91.Z - Masonry works

43.99.Z - Other specialized construction works, not classified elsewhere

71.12.A - Engineering activities and related technical consultancy

81.22.B - Other cleaning of buildings and industrial premises, not elsewhere classified