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Australia
- Aecom
- Australian Rail Track Corporation Ltd.
- Department of Transport, Melbourne
- GHD
- Halcrow Group Limited
- Metro Trains Melbourne
- Queensland Rail
- Rail Corporation of New South Wales
- Country Rail Infrastructure Authority
- Sinclair Knight Merz
- Systemwide Pty Ltd
- Transport Construction Authority
- United Group Ltd Infrastructure
Austria
Belgium
Canada
Croatia
Czech Republic
Denmark
France
Germany
- AnschlussBahnProfis
- DB-International
- Bogestra - Bochum - Gelsenkirchener Strassenbahnen Aktiengesellschaft
- Fraunhofer Institut Materialfluss und Logistik IML Projektzentrum Verkehr, Mobilität und Umwelt, Prien am Chiemsee
- Germany Railways AG (DB AG)
- DB Netz
- DB ProjektBau
- DB Regio
- Hamburg Port Authority
- Institute of Transport, Railways Construction and Operations
- Intraplan Consult GmbH
- Kölner Verkehrsbetriebe (Transport Services Cologne)
- moBiel GmbH
- Nahverkehrsbund Paderborn/Höxter (Local traffic association Paderborn/Höxter)
- Nahverkehrsgesellschaft Baden-Wuerttemberg
- Nahverkehrsservice Sachsen-Anhalt GmbH
- S-Bahn Berlin GmbH (Metro Rail Berlin)
- Schüßler-Plan
- Stadtbahn Saar (Light Rail Saar)
- ZIV Zentrum für integrierte Verkehrssysteme GmbH
Great Britain
- ARUP Railway Operations & Infrastructure Planning
- Crossrail Limited
- First Class Partnerships Rail Consultants
- Halcrow Group Limited
- Interfleet Technology Ltd
- Leigh Fischer
- Mott McDonald
- MVA Limited
- Network Rail
- RWA Rail
- Scott Wilson
- Tata Steel - Rail
- Transport Scotland
- WS Atkins Rail Limited
Iran
Ireland
Republic South Korea
Slovenia
Sweden
Academic licenses
Austria
China
Croatia
Denmark
Egypt
Germany
- German Aerospace Center
- Technical University Braunschweig
- Technical University Cottbus
- University Berlin
- University Dresden
- University Erfurt
- University Leipzig
- University of Bundeswehr Munich
- University Stuttgart
Great Britain
Netherland
Republic South Korea
Turkey