| FUNNELL, Simon Kennedy ACTIVE | Secretary | 30 Mar 2018 | | | | Mercury House, 19-21 Chapel Street, Marlow, Buckinghamshire, SL7 3HN, England |
| EYLES, Christopher Thomas, Dr ACTIVE | Director | 13 Feb 2020 | | England | February 1939 | Mercury House, 19-21 Chapel Street, Marlow, Buckinghamshire, SL7 3HN, United Kingdom |
| FUNNELL, Simon Kennedy ACTIVE | Director | 01 Oct 2019 | | United Kingdom | September 1960 | Mercury House, 19-21 Chapel Street, Marlow, Buckinghamshire, SL7 3HN, England |
| HILTON, Andrew Thomas ACTIVE | Director | 31 Mar 2016 | | England | May 1957 | Mercury House, 19-21 Chapel Street, Marlow, Buckinghamshire, SL7 3HN, United Kingdom |
| MINDRY, Jean Ann ACTIVE | Director | 30 Mar 2018 | | England | December 1946 | Mercury House, 19-21 Chapel Street, Marlow, Buckinghamshire, SL7 3HN, United Kingdom |
| STONE, Richard ACTIVE | Director | 09 May 2025 | | England | March 1948 | Mercury House, 19-21 Chapel Street, Marlow, Buckinghamshire, SL7 3HN, United Kingdom |
| MAYNARD, Geoffrey Walter, Professor RESIGNED | Secretary | 18 Oct 1992 | 29 Sep 2004 | | | Flat 9 Millbank, Mill Road, Marlow, Buckinghamshire, SL7 1UA |
| SINDBERG, Paula Ann, Dr RESIGNED | Secretary | 12 Nov 2004 | 10 Feb 2006 | | | 8 Millbank, Mill Road, Marlow, Buckinghamshire, SL7 1UA |
| WEEDEN, Anthony Joseph RESIGNED | Secretary | 10 Feb 2006 | 21 Jun 2013 | | | Woodside, Bockmer End, Marlow, Buckinghamshire, SL7 2HL |
| M & K NOMINEE SECRETARIES LIMITED RESIGNED | Nominee Secretary | 10 Sep 1992 | 18 Oct 1992 | | | 43 Wellington Avenue, London, N15 6AX |
| BARTON, David John RESIGNED | Director | 30 Mar 2018 | 09 May 2025 | England | January 1944 | Mercury House, 19-21 Chapel Street, Marlow, Buckinghamshire, SL7 3HN, England |
| CHALFONT, John Frederick RESIGNED | Director | 18 Oct 1992 | 10 Mar 1995 | | November 1934 | 15 Millbank, Mill Road, Marlow, Buckinghamshire, SL7 1UA |
| FRANCIS, Philip RESIGNED | Director | 06 Nov 1992 | 10 Feb 2006 | | December 1915 | 10 Millbank, Mill Road, Marlow, Buckinghamshire, SL7 1UA |
| GREAVES MB CHB FRCS, Brian Peter Buller, Dr RESIGNED | Director | 20 Jun 2011 | 30 Mar 2018 | England | December 1945 | Flat 7, Millbank, Mill Road, Marlow, Buckinghamshire, SL7 1UA, England |
| GYSELYNCK, Richard Kim RESIGNED | Director | 31 Mar 2016 | 02 Nov 2018 | United Kingdom | August 1953 | Mercury House, 19-21 Chapel Street, Marlow, Buckinghamshire, SL7 3HN, United Kingdom |
| GYSELYNCK, Richard Kim RESIGNED | Director | 07 Mar 2013 | 24 Aug 2015 | England | August 1953 | Mercury House, 19-21 Chapel Street, Marlow, Buckinghamshire, SL7 3HN, United Kingdom |
| HEPPER, Clive RESIGNED | Director | 10 Feb 2006 | 02 Nov 2009 | | May 1956 | 7 Millbank, Mill Road, Marlow, Buckinghamshire, SL7 1UA |
| MAYNARD, Geoffrey Walter, Professor RESIGNED | Director | 18 Oct 1992 | 10 Feb 2006 | | October 1921 | Flat 9 Millbank, Mill Road, Marlow, Buckinghamshire, SL7 1UA |
| PATON, Sylvia RESIGNED | Director | 22 Nov 2017 | 21 Oct 2019 | England | June 1930 | Mercury House, 19-21 Chapel Street, Marlow, Buckinghamshire, SL7 3HN, United Kingdom |
| SLATER, Henry Welton RESIGNED | Director | 06 Nov 1992 | 02 Oct 2006 | | March 1921 | Flat 1 Millbank, Mill Road, Marlow, Buckinghamshire, SL7 1UA |
| SWIFT, Lynne Roberta RESIGNED | Director | 21 Jan 2010 | 31 Mar 2016 | England | March 1954 | Flat 9, Millbank, Mill Road, Marlow, Buckinghamshire, SL7 1UA, England |
| TRENCH, Michael Kenneth RESIGNED | Director | 26 Jan 2014 | 22 Nov 2017 | United Kingdom | October 1961 | Mercury House, 19/21 Chapel Street, Marlow, Bucks, SL7 3HN, England |
| WEEDEN, Pamela Dorothy RESIGNED | Director | 10 Feb 2006 | 24 Jun 2013 | | April 1935 | Woodside House, Bockmer End, Laneend, Buckinghamshire, SL7 2HL |
| WHELAN, Alan Francis RESIGNED | Director | 19 Jun 2006 | 26 Jan 2014 | United Kingdom | June 1961 | 34 Bovingdon Heights, Marlow, Buckinghamshire, SL7 2JS |
| M & K NOMINEE SECRETARIES LIMITED RESIGNED | Nominee Director | 10 Sep 1992 | 18 Oct 1992 | | | 43 Wellington Avenue, London, N15 6AX |