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William Martin Castell

William Martin Castell, British health products executive. Farm Credit Administration. Named knight, 2000, Lieutenant, Royal Victorian Order, 2004; fellow (honorary), Academy Medical Science. Trustee Natural History Museum, London; board member Institute Life Sciences, University Michigan; visiting fellow Green College, Oxford; chairman The Prince's Trust, 1998; Member of Insurance Chartered Accountants (fellow 1980).


Castell, William Martin was born on April 10, 1947 in London. Son of William Gummer and Gladys (Doe) Castell.


Bachelor with honors, City of London College, England. D Science Society (honorary), Brunel University, 2004.


He was CEO of Amersham plc from 1989 until it was acquired by GE in April 2004 and then became CEO of GE Healthcare and a vice-chairman of GE. He qualified as an accountant with Spicer and Pegler (1971–75) and then joined Wellcome plc as financial controller of Europe (1976–79), rising to MD Wellcome Biotech (1982–84) and commercial director (1984–89). He was a non-executive director of The General Electric Company (UK) which became Marconi plc 1997–2002, and was appointed a non-executive director of BP in 2006, until April 2012. He joined the board of governors of the Wellcome Trust as chairman-designate on 1 January 2006, succeeding Sir Dominic Cadbury as chairman in May 2006.

Prior to joining Amersham, he held various positions with the Wellcome pharmaceutical company, which was then owned by the Wellcome Trust.


Alongside his business career he has been involved for many years in not-for-profit activities, including being a council member of the Medical Research Council (2001–2004) and chairman of the Prince's Trust (1998–2003). He is currently a trustee of the Natural History Museum, a board member of the University of Michigan's Institute of Life sciences, a board member of the National Bureau of Asian Research, a Visiting Fellow at Green College, Oxford University, and an Honorary Fellow of the Academy of Medical Sciences.


Married Renice Mendelson, 1971. Children: Sarah, Claire, William.