Marti is one of the world leading companies in tunnel construction, with global success in the execution of big scale tunnel projects. Thanks to our specialized engineers and highly qualified staff using state of the art tunnelling equipment, our excellence covers the entire range of conventional and mechanized methods. We have tunnel boring machinery available from 3.8 up to 14.0 meters in diameter and an extensive specialist inventory which allows us to execute tunnelling projects of any size competently and efficiently.


  • Hard rock boring machines

  • Shield boring machines

  • Slurryshield tunnelling

  • Mixshield tunnelling

  • Earth pressure balanced tunnelling

  • Raise Boring

  • Shaft Sinking

  • Drill and blast

  • Mechanical cutting by excavator or road header

  • Special methods, using jetting and pipe roofing

  • Open cut method

  • Cut and cover method

Marti Contractors Ltd.
Seedorffeldstrasse 21
3302 Moosseedorf
+41 31 388 75 20