| Adrian James Henry Ewer | Director | 11 Dec 2007 | 26 Mar 2014 | British | 72 years |
| Alan Campbell Hogg | Director | 9 Aug 2005 | 11 Dec 2007 | British | 63 years |
| Andrew Erskine Friend | Director | 28 Apr 2003 | 8 Sept 2006 | British | 73 years |
| Anthony Charles Roper | Director | 22 Mar 2002 | 17 Jun 2004 | British | 65 years |
| Benjamin Jon Grew | Director | 6 Apr 2023 | 11 May 2023 | British | 43 years |
| Carolyn Tracy Cattermole | Director | 11 Oct 2016 | 29 Mar 2018 | British | 65 years |
| Christopher Brian Waples | Director | 11 Dec 2007 | 31 Jan 2019 | British | 66 years |
| Clare Underwood | Director | 31 Jan 2019 | 14 Jan 2022 | British | 53 years |
| Derek Potts | Director | 22 Mar 2002 | 31 Mar 2017 | British | 67 years |
| Emily Martin | Secretary | 8 May 2019 | 31 Jan 2022 | - | - |
| Florence Marie Francoise Barras | Director | 22 Mar 2002 | 28 Jun 2002 | British,french | 61 years |
| Gary Arthur Neville | Director | 28 Apr 2003 | 31 May 2007 | British | 69 years |
| Gary Stephen Lucas | Director | 29 Aug 2006 | 11 Dec 2007 | British | 67 years |
| James Haydn Abbott | Director | 20 Mar 2023 | 17 Apr 2025 | British | 46 years |
| James Martin Storer | Director | 28 Apr 2003 | 23 Sept 2003 | British | 68 years |
| Lynette Gillian Krige | Director | 11 Dec 2007 | 30 Apr 2011 | British | 59 years |
| Maria Bernadette Lewis | Secretary | 6 Mar 2009 | 4 Sept 2015 | British | - |
| Mark Beckett | Director | 21 May 2003 | 11 Aug 2006 | British | 58 years |
| Michael John Mercer-deadman | Director | 24 Mar 2003 | 11 Dec 2007 | British | 79 years |
| Peter Alan James Couldery | Director | 24 Mar 2003 | 11 Dec 2007 | British | 66 years |
| Peter Geoffrey Shell | Director | 28 Apr 2003 | 11 Dec 2007 | British | 74 years |
| Peter Geoffrey Shell | Secretary | 1 Jul 2002 | 23 Mar 2007 | British | - |
| Peter Richard Armstong | Director | 17 Jun 2004 | 11 Dec 2007 | New Zealand | 63 years |
| Philip Naylor | Secretary | 4 Sept 2015 | 18 Jan 2019 | - | - |
| Roger Keith Miller | Secretary | 22 Mar 2002 | 1 Jul 2002 | British | - |
| Roger Keith Miller | Secretary | 23 Mar 2007 | 27 Sept 2012 | British | - |
| Stuart Martin Colvin | Director | 31 Mar 2017 | 6 Apr 2023 | British | 53 years |
| Victoria Burnett | Secretary | 1 Feb 2022 | 14 Dec 2022 | - | - |
| Warren Lee | Director | 14 Jan 2022 | 20 Mar 2023 | British,american | 45 years |