Railtrack

Railtrack was a group of companies that owned the track, signalling, tunnels, bridges, level crossings and all but a handful of the stations of the British railway system from its formation in April 1994 until 2002. The company was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index but on 3 October 2002, the main operating arm - the owner and operator of the national railway network, Railtrack plc - was sold by its parent company Railtrack Group plc to "not for dividend" company Network Rail (a company limited by guarantee) and was later renamed Network Rail Infrastructure Ltd.

Railtrack Group plc was renamed RT Group plc and was dissolved on 22 June 2010.