Main Railway Signalling Companies

Signalling and Communications
ACORDE - Broadband Railway Internet Access on High Speed Trains Via Satellite Links
Alcatel - Train Control, Rail Signalling and Communication Solutions
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
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
Kockum Sonics - Train Whistle Signals for Locomotives and Rolling Stock
Lumination - Railway LED Signals
McML Systems - Complete Signalling Systems
Nomad Digital - Mobile Data Communications Services for Trains
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
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
Union Switch & Signal - Complete Rail Signalling and Control Solutions
Westinghouse Rail Systems - Signalling and Train Control Systems