|
 | | Piening GmbH | Leipzig |
 | | Piening GmbH | Brilon |
 | | Danaher | Bad Kreuznach |
 | | Max Bögl Bauservice GmbH & Co. KG | Frankfurt am Main, Leipzig, Sengenthal bei Neumarkt in der Oberpfalz |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | LeitWerk AG | Augsburg |
 | | Kramer GmbH | Umkirch |
 | | INROS LACKNER SE | Fulda, Würzburg, Eisenach |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | Ganter Group | Waldkirch |
 | | BIT Ingenieure AG | Heilbronn |
 | | BIT Ingenieure AG | Heilbronn, Villingen-Schwenningen, Karlsruhe |
 | | INROS LACKNER SE | Dresden |
 | | INROS LACKNER SE | Stuttgart |
 | | Rail Power Systems GmbH | Leipzig, Offenbach am Main, Dresden, Berlin |