| Andrew James Rinaldi | Director | 6 Sept 2010 | 30 Jan 2018 | British | 58 years |
| Anthony Edward Leyland | Director | 21 Feb 1993 | 31 Mar 1997 | British | 79 years |
| Catherine Bernadette Wheatley | Secretary | 2 Jul 1996 | 1 Jul 1998 | British | - |
| Colin Richard Clapham | Secretary | 1 Dec 2009 | 30 Jan 2018 | - | - |
| Colin Richard Clapham | Director | 30 Jan 2018 | 31 Oct 2019 | British | 81 years |
| Douglas Victor Garrod | Director | 21 Feb 1993 | 5 Jul 1994 | British | 85 years |
| Henry William Moore | Director | 21 Feb 1993 | 16 Jun 2000 | British | 78 years |
| James John Jordan | Secretary | 20 Dec 2004 | 9 Dec 2008 | British | - |
| Jennifer Canty | Director | 24 Apr 2024 | 30 Sept 2025 | British | 33 years |
| Jennifer Canty | Secretary | 24 Apr 2024 | 30 Sept 2025 | - | - |
| John Frederick Laker | Director | 27 Apr 1995 | 1 Feb 1997 | British | 80 years |
| Karen Lorraine Atterbury | Director | 18 May 2011 | 16 Jan 2012 | British | 50 years |
| Karen Lorraine Atterbury | Secretary | 4 Feb 2002 | 1 Dec 2009 | British | - |
| Katherine Elizabeth Hindmarsh | Secretary | 30 Jan 2018 | 15 Jun 2023 | - | - |
| Katherine Elizabeth Hindmarsh | Director | 31 Oct 2019 | 19 Sept 2023 | British | 37 years |
| Martin Geoffrey Boynes | Director | 25 Mar 1997 | 31 Mar 2011 | British | 75 years |
| Michael Andrew Lonnon | Director | 16 Jan 2012 | 9 Dec 2024 | British | 69 years |
| Michael John Lavers | Director | 21 Feb 1993 | 1 Mar 1996 | British | 83 years |
| Michael Thomas Bird | Director | 27 Apr 1995 | 29 Sept 1995 | British | 80 years |
| Omolola Olutomilayo Adedoyin | Director | 19 Sept 2023 | 24 Apr 2024 | British | 51 years |
| Omolola Olutomilayo Adedoyin | Secretary | 15 Jun 2023 | 24 Apr 2024 | - | - |
| Peter Stuart Matthews | Director | 9 Dec 2008 | 6 Sept 2010 | British | 58 years |
| Richard Arnold Andrew | Director | 24 Aug 1993 | 31 Mar 1995 | British | 82 years |
| Richard Seymour Waghorn | Director | 16 Jun 2000 | 31 Dec 2007 | British | 71 years |
| Shalom David Wiseman | Director | 21 Feb 1993 | 30 Apr 1993 | British | 83 years |
| Stefan Edward Bort | Secretary | 21 Feb 1993 | 9 Jul 1997 | British | - |
| Stefan Edward Bort | Secretary | 1 Jul 1998 | 4 Feb 2001 | British | - |
