Alstom
Hacon Ingenieurgesellschaft mbH
Hexagon AB
Hitachi Rail Limited
Mitsubishi Heavy Industries Ltd.
Motorola Solutions Inc.
Rail-Flow GmbH
RAILMP
RideOnTrack
Siemens AG
Sun Ridge Systems Inc.
Thales Group
Toshiba Infrastructure Systems & Solutions Corporation
Tracsis PLC
Wabtec Corporation
Wakelet Limited