| JAMIESON, Stephen Johan ACTIVE | Director | 22 Feb 2019 | | United Arab Emirates | September 1957 | Unit 191, Cambridge Science Park, Milton Road, Cambridge, CB4 0GW, England |
| LEA, Bryan George ACTIVE | Director | 29 Jan 1999 | | England | June 1961 | Unit 191, Cambridge Science Park, Milton Road, Cambridge, CB4 0GW, England |
| CORNHILL SERVICES LIMITED RESIGNED | Secretary | 25 Mar 2008 | 26 Feb 2009 | | | 6th Floor, 52-54 Gracechurch Street, London, EC3V 0EH |
| TIERCEL SERVICES LIMITED RESIGNED | Secretary | 26 Feb 2009 | 11 Jun 2018 | | | 9th Floor, New Zealand House, 80 Haymarket, London, SW1Y 4TQ, England |
| TIERCEL SERVICES LIMITED RESIGNED | Secretary | | 25 Mar 2008 | | | 15 North Audley Street, London, W1K 6WZ |
| BAKER, Stuart David RESIGNED | Director | 08 Aug 2017 | 31 Dec 2019 | United States | July 1935 | Unit 196, Cambridge Science Park, Milton Road, Cambridge, CB4 0AB, England |
| BASHFORTH, Simon John RESIGNED | Director | 24 Jan 1994 | 06 Apr 2012 | United Kingdom | March 1957 | Unit 191, Cambridge Science Park, Milton Road, Cambridge, Cambridgeshire, CB4 0AB |
| BROGDEN, John Robert RESIGNED | Director | | 30 Mar 2005 | | March 1949 | Unit 191 Cambridge Science Park, Milton Road, Cambridge, Cambridgeshire, CB4 0GW |
| CHAPLIN, John Richard RESIGNED | Director | | 09 Sep 1999 | United Kingdom | September 1939 | 50 Storeys Way, Cambridge, CB3 0DX |
| HEALEY, Michael John RESIGNED | Director | 04 May 1995 | 30 Mar 2005 | | August 1944 | Unit 191 Cambridge Science Park, Milton Road, Cambridge, Cambridgeshire, CB4 0GW |
| LESLIE, Stewart T RESIGNED | Director | | 31 Dec 1997 | | January 1940 | 4 Babraham Road, Cambridge, Cambridgeshire, CB2 2RA |
| LYNCH, Michael Howard RESIGNED | Director | 29 Jan 1999 | 31 Dec 2012 | United Kingdom | January 1956 | Unit 191, Cambridge Science Park, Milton Road, Cambridge, Cambridgeshire, CB4 0AB |
| MANNERS, Paul RESIGNED | Director | | 31 Dec 2001 | | July 1941 | Tuffields Barn, Tuffields Road Whepstead, Bury St. Edmunds, Suffolk, IP29 4TN |
| MATTESSICH, Antony Charles RESIGNED | Director | 01 Apr 2005 | 31 Jul 2017 | England | March 1967 | Cambridge Science Park, Milton Road, Cambridge, CB4 0AB |
| MILLER, Allan John RESIGNED | Director | | 29 May 2003 | | November 1936 | 1 Weston Park, Weston Green, Thames Ditton, Surrey, KT7 0HW |
| MITCHELL, Christopher Benbow RESIGNED | Director | | 12 Apr 2018 | United Kingdom | December 1936 | Unit 196, Cambridge Science Park, Milton Road, Cambridge, CB4 0AB, England |
| WIKSTROM, Ake Gunnar RESIGNED | Director | 12 Apr 2018 | 22 Feb 2019 | United Kingdom | May 1951 | Unit 196, Cambridge Science Park, Milton Road, Cambridge, CB4 0AB, England |
| WIKSTROM, Ake Gunnar RESIGNED | Director | 05 Sep 2001 | 19 May 2011 | United Kingdom | May 1951 | Unit 191, Cambridge Science Park, Milton Road, Cambridge, Cambridgeshire, CB4 0AB |
| WILLIAMSON, Kenneth Lawrie, Dr RESIGNED | Director | 28 Jun 2002 | 31 Mar 2009 | | August 1961 | Unit 191 Cambridge Science Park, Milton Road, Cambridge, Cambridgeshire, CB4 0GW |