Verband der Bahnindustrie in Deutschland (VDB) e.V.
 

 
 

The following companies offer the product underground railway systems.

Balfour Beatty Rail GmbH81373 München
Bombardier Transportation10785 Berlin
Ferrostaal AG45128 Essen
Siemens AG Mobility91052 Erlangen
Vossloh Kiepe GmbH40599 Düsseldorf