1. ABB Ltd.
2. Advantech Co. Ltd.
3. ALE International SAS
4. Alstom SA
5. Cisco Systems Inc.
6. EKE-Electronics Ltd.
7. Fujitsu Limited
8. General Electric Company
9. Hitachi
Ltd.
10. Honeywell International Inc.
11. Huawei Technologies Co. Ltd.
12. Indra Sistemas SA
13. Intel Corporation
14. International Business Machines Corporation
15. ITK Engineering GmbH
16. Kontron AG
17. LS ELECTRIC Co. Ltd.
18. MiTAC Information Technology Corp.
19. Mitsubishi Electric Corporation
20. Nokia Corporation
21. Railistics GmbH
22. Robert Bosch GmbH
23. Schaltbau Holding AG
24. Schnieder Electric SE
25. Siemens AG
26. Sierra Wireless by Semtech Corporation
27. SMART Railway Technology GmbH
28. Tech Mahindra Limited
29. Teldat Group
30. Telefonaktiebolaget LM Ericsson
31. Thales Group
32. Toshiba Corporation
33. Voestalpine AG
34. Vossloh AG
35. Wabtec Corporation
36. ZEDAS GmbH
37. ZF Friedrichshafen AG