| Andrew David Smith | Director | 18 Jul 2012 | 14 Feb 2014 | British | 50 years |
| Andrew Marc Jones | Director | 28 Jul 2005 | 6 Nov 2009 | British | 58 years |
| Benjamin Toby Grose | Director | 6 Nov 2009 | 13 May 2021 | British | 57 years |
| Catherine Fiona Sayers | Director | 17 Nov 2023 | 30 Nov 2023 | British | 35 years |
| Charles John Middleton | Director | 13 Jul 2016 | 31 Mar 2022 | British | 60 years |
| Harold Raymond Mould | Director | 16 Aug 1994 | 28 Jul 2005 | British | 86 years |
| Humphrey James Montgomery Price | Director | 16 Aug 1994 | 28 Jul 2005 | British | 84 years |
| Jonathan Lionel Joseph | Director | 17 Nov 1991 | 17 Nov 1994 | British | 76 years |
| Mark Andrew Stirling | Director | 28 Jul 2005 | 6 Nov 2009 | British | 63 years |
| Martin Francis Mcgann | Director | 26 Feb 2003 | 7 Oct 2005 | British | 65 years |
| Masatoshi Shibata | Director | 17 Nov 1991 | 17 Nov 1994 | Japanese | 75 years |
| Nicholas John Philip Sheehan | Director | 7 Feb 1997 | 27 Feb 1997 | British | 79 years |
| Nick Taunt | Director | 18 Mar 2022 | 22 Dec 2023 | British | 40 years |
| Patrick Lionel Vaughan | Director | 16 Aug 1994 | 8 Aug 2005 | British | 79 years |
| Peter Evason Hudson | Secretary | 17 Nov 1991 | 17 Nov 1994 | British | - |
| Philip John Martin | Director | 6 Nov 2009 | 31 Oct 2016 | British | 69 years |
| Philip John Martin | Secretary | 16 Aug 1994 | 31 Oct 2016 | British | - |
| Satoru Fujino | Director | 23 Sept 1993 | 17 Nov 1994 | Japanese | 70 years |
| Tobias Edward Hamilton Bellhouse | Director | 17 Nov 1991 | 17 Nov 1994 | British | 77 years |
| Valentine Tristram Beresford | Director | 28 Jul 2005 | 6 Nov 2009 | British | 61 years |
| Yoshio Matsumoto | Director | 17 Nov 1991 | 17 Nov 1994 | Japanese | 84 years |