| Allen Cohen | Director | 22 Mar 1996 | 1 Apr 2014 | British | 74 years |
| Andrew Neil Mckenzie | Director | 26 Apr 1994 | 28 Mar 2011 | British | 81 years |
| Bree Ann Taylor | Director | 19 Mar 2019 | 24 Jul 2020 | British | 52 years |
| Charles Boundy | Director | 13 Jul 1988 | 20 Mar 1996 | British | 81 years |
| Charles David Wander | Director | 13 Sept 2006 | 20 Mar 2018 | British | 72 years |
| Emma Dahl | Secretary | 25 Oct 1991 | 28 Jul 1995 | British | - |
| Harvey Emmanuel Rollinson | Director | 26 Apr 1994 | 20 Mar 1996 | British | 70 years |
| John Colin Bates | Director | 25 Oct 1991 | 20 Mar 1996 | British | 82 years |
| John Edward Goreing | Director | 5 Aug 2011 | 8 Jun 2018 | British | 65 years |
| John Goreing | Secretary | 31 Jan 1997 | 8 Jun 2018 | British | - |
| Julia Mary Evelyn Warren | Secretary | 25 Oct 1991 | 29 Jul 1994 | British | - |
| Julian Anthony Lewis | Director | 19 Mar 2019 | 30 Jun 2022 | British | 65 years |
| Nicolas David Antony Greenstone | Director | 22 Mar 1996 | 14 Aug 2003 | British | 82 years |
| Paul Leese | Director | 22 Mar 1996 | 28 Mar 2011 | British | 79 years |
| Peter Charles Stahelin | Secretary | 28 Jul 1995 | 31 Jan 1997 | British | - |
| Philip Nigel Barth | Director | 25 Oct 1991 | 30 Apr 1998 | British | 70 years |
| Richard Maurice Emile Reuben | Director | 1 Apr 2014 | 2 Jun 2021 | British | 68 years |
| Simon Jeremy Ekins | Director | 13 Sept 2006 | 19 Mar 2019 | British | 65 years |