Switzerland
| ABB | Schweiz |
| BLS | Bern |
| Bombardier | Villeneuve Zürich |
| RBS | Worblaufen |
| RHB | Landquart |
| SBB | Bern, Zürich |
| Stadler-Rail | Altenrhein, Bussnang, Winterthur |
Germany
| ABB | Lampertheim |
| Balfour Beatty | Offenbach |
| EAI | Mannheim |
| Elpro | Berlin |
| FEAG | Dormagen, Erlangen |
| Hochbahn | Hamburg |
| IS Interschalt | Schenefeld |
| MVV Energie | Mannheim |
| Siemens | Köln, Erlangen |
| Stadler Pankow | Berlin |
| Stagu | Berlin |
European Union
| ABB | Polen, Österreich |
| AEG | Belgien |
| Areva | Türkei |
| Balfour Beatty | Österreich |
| E.E.I. | Italien |
| Efacec | Portugal |
| Eleca | Italien |
| Elektrizace zeleznic | Tschechien |
| Energiatehnika | Estland |
| Imtech | Holland |
| Poseico | Italien |
| Rail Comp. | Tschechien |
| Satelec | Frankreich |
| Sécheron | Tschechien |
| Siemens | Dänemark, Schweden |
| Stadler | Polen |
| Strukton Hengelo | Holland |
Oversee:
| ABB | Australien |
| AAAS | Hong Kong |
| BMP | Brasilien |
| Bombardier | Brasilien |
| Entec | Korea |
| Gaosuo Science | Taiwan |
| Mao zhenglong | China |
| Precision Tech. | Singapore |
| Qual-Tran | Amerika |
| Shanghai GE Guangding | China |
| Shanghai Hai Ce | China |
| Shanghai Double Faith | China |
| Shanghai Tech | China |
| Shanghai Togee | China |
| Shanghai ToolBel | China |
| Siemens | Amerika |
| X.L.N.T | Australien |
| Zhenjiang | China |