Signalling and Communications
- ACORDE - Broadband Railway Internet Access on High Speed Trains Via Satellite Links
- AEG TRANZCOM - Transport Communication and Power Supply Systems
- Alcatel - Train Control, Rail Signalling and Communication Solutions
- Aldridge Railway Signals - Traffic Signalling Equipment
- ALSTOM - Signaling and Train Control Systems
- Ansaldo - Railway Signalling Systems
- Banner Engineering - Industrial, Radar-Based Sensors for Train Detection
- Bombardier Transportation - Rail Control Solutions
- Cactus Automation - Traffic Management System
- CDSRail - Remote Condition Monitoring of Railway Infrastructure
- Central Electronics Limited - New Generation Railway Signalling Systems
- CONDOR Signal & Communications - Switch Clearing Devices and Grade Crossing Solutions
- Crown - Railway Trackside Signal Housing Solutions
- Dialight - LED Lighting for Rail Signalling and Level Crossing Signals
- ERICO - Rail Signal Bonds, Track Tools, Cable Clips and Rail Protection Devices
- GE - Transportation, Global Signalling - Integrated Systems Solutions For The Rail Industry
- Henry Williams - Manufacturer of Control and Signalling Equipment for Railways
- Integra Hindustan Control - Audio Frequency Track Circuits (AFTC), Signalling Relays, Railway Signalling System
- KeTech - Station and Train Management and Passenger Information Systems
- KEYMILE - Telecommunications and Access Systems
- Kockum Sonics - Train Whistle Signals for Locomotives and Rolling Stock
- Lumination - Railway LED Signals
- McML Systems - Complete Signalling Systems
- MICA - Rechargeable Flashlights, Hand Lamps, Cap Lamps and Signalling Lamps
- Nomad Digital - Mobile Data Communications Services for Trains
- Power-One - Locomotive Power Systems and Supplies
- Prover Technology - Accelerating Development and Reducing Cost of Provably Correct Rail Control Systems
- Railroad Signal International - Railroad Crossing Warning Signal Systems and Equipment
- Sanarti Group - LED Signals, Warning and Signalling Lamps, Locomotive and Train Operation Safety Equipment and Railway Illuminations
- Selenia Mobile - GSM-R Railway Communications
- Siemens Transportation Systems - Signalling and Control Systems
- Sitec T&C - Rail Signalling Testing and Commissioning
- TELEFUNKEN - Radio Communication Systems
- Testing Installation and Correlation Services (TICS) - Signalling Design and Signal Works Testing
- Thales - Specialist Telecommunications Services to the UK Rail Industry
- The Specialty Bulb Company - Railway and Transit Lamps
- TransCore - Rail and Intermodal Automatic Equipment Identification
- Union Switch & Signal - Complete Rail Signalling and Control Solutions
- Westinghouse Rail Systems - Signalling and Train Control Systems
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