Invensys Rail Group

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Invensys Rail Group was a division of Invensys, a UK-based multinational engineering company. It was a designer, manufacturer and integrator of railway equipment, including automation, signalling and controls. The group was headquartered in Chippenham, Wiltshire, and as of 2005, had over 2750 employees in 14 locations internationally. It operated through four companies:

  • Invensys Rail Dimetronic (Spain, Portugal and Latin America);
  • Westinghouse Rail Systems (UK); and
  • Invensys Rail Systems Australia incorporating Westinghouse Signals Australia and Foxboro Transportation, now known collectively as WRSA (Westinghouse Rail Systems Australia).

Westinghouse Rail Systems Ltd (WRSL) (UK) was previously known as Westinghouse Signals Ltd and before that was part of Westinghouse Brake and Signal Company, named after inventor George Westinghouse.

The other part of Westinghouse Brake and Signal Company, Westinghouse Brakes Ltd, was sold by Invensys to Knorr-Bremse,[1] and has since left the Chippenham site to set up in the nearby town of Melksham.

On 28 November 2012, Invensys agreed to sell its rail arm to Siemens AG for £1.7bn; the sale was completed 2 May 2013.[2]


  1. ^ Invensys investor relations news release, 25 April 2000 Invensys Sells Westinghouse Brakes to Knorr-Bremse. Retrieved from the Internet Archive on 30 March 2008.
  2. ^ Railwail gazette, Sale of Invensys rail to Siemens AG.

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