Comms Design Ltd

+44 (0)1423 895071

Company overview

Comms Design Ltd designs and manufactures high-tech electronic products for the rail industry, specialising in safe, cost-effective signalling and communication equipment.

With its agile approach, dedicated team, and commitment to delivery and innovation, the firm understands clients’ needs – and develops efficient, state-of-the-art solutions to suit.

A dependable industry partner, Comms Design Ltd has supported major schemes – including the RETB Next Generation project. As part of this project, its team manufactured 12 new products in just 24 months.

And, 30 years since it began supplying cutting-edge electronic equipment to academia and industry, it remains committed to exceeding client expectations and launching novel products. Today, its partners include Network Rail, Unipart Rail, ScotRail, AmcoGiffen, and Amey.


  • Embedded and application software development.
  • Precision-engineered enclosures and mechanical design.
  • Electronic hardware design with a fast turnaround.
  • Planning and simulation of state-of-the-art radio coverage.
  • End-to-end product development.
  • Support and certification training.
  • Volume manufacturing and supply.

RETB in-cab digital signalling

In use across the UK, Comms Design Ltd’s RETB Next Generation system is suitable for both industrial and rural routes, and passenger or freight traffic. Benefits include:

  • Fully compliant with Network Rail quality and safety standards.
  • Flexible installation.
  • Easy to operate for drivers and signallers.
  • Modular equipment allows for easy maintenance, reducing downtime.
  • An efficient alternative to mechanical signals, semaphore signals, coloured light signals and other kinds of single track train control.
  • Doesn’t require track side signals.
  • Enables trains to operate safely on single-track railways without physical train detection systems, signal box personnel, or significant trackside infrastructure.

Every RETB network comprises a suite of products, which are supported by Comms Design Ltd and its spares, repairs, testing and training services.

RETB products and services include:


40 Freemans Way, Harrogate, HG3 1DH



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