John Buxton headed up an Engineering Division of British Railways and was Managing Director of Cardiff Railway Company. John set up Cambrian Transport in 1995 specialising in rail infrastructure, traction and electrification projects. He has worked extensively in the UK and in Ireland, Canada and the Middle East, including Metro schemes in Toronto, Doha and Riyadh.Don Heath has held senior positions in British Railways Research Department, the London Midland region, Transmark in 1976 to work on the design of a new line in Iran. In 1982 he became a founder member of the Major Projects Department (appointed a Director in 1988) from where he successfully led the electrification of the East Coast Main Line. In 1991 he took charge of the BR input into the joint LUL/BR CrossRail project team. He became an independent consultant at privatisation, and clients included Chiltern Railways, Virgin West Coast and Network Rail. He retired in 2017.