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Siemens invests £100 million in Wiltshire rail infrastructure hub

Existing factory in Chippenham to be replaced with state-of-the-art manufacturing and R&D facility.

The new cutting-edge facility, which is expected to become operational in 2026, will be vital for Siemens Mobility's future projects in rail technology, providing a new base for the intelligent transport solutions provider to build its next generation of conventional and digital rail signalling and control systems.

Located south of Langley Park at SouthPoint Business Park, the new factory will feature an office built to the highest BREEAM 'Excellent' standard while new production and warehouse areas will meet strict sustainability criteria, evaluated across various categories including energy, water and waste as well as health and well-being.

Around 800 local manufacturing, research, engineering and support staff are expected to transition to the new site. The plans are also expected to be a boost for the local economy in Chippenham and the wider Wiltshire region, with Siemens Mobility working closely with local small and medium enterprises across the supply chain.

Joint CEO of Siemens Mobility UK & Ireland, Rob Morris, said the investment is a strong commitment to both Chippenham and the UK. “Siemens Mobility’s Chippenham site, along with our 30 sites across the country, has been transforming rail, travel, and transport in Britain – and it will continue to do so with cloud-based rail technology connecting the real and the digital worlds, digitalising rail.

“We are very excited to soon start construction of one of the most sophisticated rail factories, digital engineering and R&D sites in the UK, supporting local jobs and skills for the future.”

Transport Secretary Mark Harper said: “This vital investment will help futureproof our rail network... Rail manufacturing plays an important role in our economy, supporting thousands of skilled jobs, with this new facility supporting hundreds more.”

Siemens’ Chippenham factory has been a hub of innovation for more than a century, pushing the boundaries of rail technology. Key innovations include computer-based interlockings for the East Coast Digital Programme, modular technology for improved connections on the North Wales Coast and the development of relays for railway signalling. Over the years, it underwent various transitions, including being acquired by the Westinghouse Brake & Signalling Company, before becoming part of Siemens’ network of rail infrastructure production facilities.

A separately managed subsidiary of Siemens AG, Siemens Mobility's core areas include rolling stock, rail automation and electrification, a comprehensive software portfolio, turnkey systems as well as related services.



  • Supply Chain
  • Rail