| Andrew Mackenzie | Director | 15 Nov 1991 | 4 Nov 1992 | British | 86 years |
| Andrew Mackenzie | Director | 30 Jun 1998 | 31 Mar 2000 | British | 86 years |
| Caterina De Feo | Secretary | 27 May 2005 | 12 Nov 2007 | British | - |
| Christopher Carney | Director | 2 May 2008 | 26 Jan 2011 | British | 52 years |
| Christopher Philip Watts | Director | 30 Apr 2004 | 31 Aug 2007 | British | 65 years |
| Colin Gabb | Director | 1 Oct 1995 | 31 Mar 2001 | British | 74 years |
| Colin Richard Clapham | Director | 26 Jan 2011 | 31 Oct 2019 | British | 81 years |
| David Douglas Percival White | Director | 2 Dec 2002 | 30 Apr 2004 | British | 76 years |
| David Stephen George | Secretary | 1 Oct 1995 | 1 Jul 2001 | British | - |
| Geoffrey Frederick Potton | Director | 1 Jun 1992 | 30 Jun 1998 | British | 74 years |
| James John Jordan | Secretary | 12 Nov 2007 | 15 Apr 2008 | British | - |
| Jennifer Canty | Director | 24 Apr 2024 | 30 Sept 2025 | British | 33 years |
| Jennifer Canty | Secretary | 24 Apr 2024 | 30 Sept 2025 | - | - |
| Jonathan Charles Murrin | Director | 19 Jul 2007 | 2 May 2008 | British | 57 years |
| Jonathan Malcolm Cray | Director | 1 Jul 2001 | 21 Aug 2008 | British | 64 years |
| Jonathan Philip Hastings | Secretary | 1 Jul 2001 | 27 May 2005 | British | - |
| Karen Lorraine Atterbury | Secretary | 1 Dec 2009 | 16 Jan 2012 | - | - |
| Katherine Elizabeth Hindmarsh | Secretary | 5 Dec 2016 | 27 Jun 2023 | - | - |
| Katherine Elizabeth Hindmarsh | Director | 31 Oct 2019 | 19 Sept 2023 | British | 37 years |
| Michael Andrew Lonnon | Secretary | 16 Jan 2012 | 5 Dec 2016 | - | - |
| Michael Andrew Lonnon | Director | 17 Jul 2015 | 9 Dec 2024 | British | 69 years |
| Michael Andrew Lonnon | Secretary | 1 Jan 2009 | 1 Dec 2009 | British | - |
| Michael Peter Marsden | Secretary | 15 Nov 1991 | 1 Oct 1995 | British | - |
| Nicholas Carey Smith | Director | 15 Nov 1991 | 1 Jan 1993 | British | 69 years |
| Omolola Olutomilayo Adedoyin | Director | 19 Sept 2023 | 24 Apr 2024 | British | 51 years |
| Omolola Olutomilayo Adedoyin | Secretary | 27 Jun 2023 | 24 Apr 2024 | - | - |
| Paul David Phipps | Director | 5 Mar 2001 | 18 Jul 2001 | British | 74 years |
| Peter Anthony Carr | Secretary | 15 Apr 2008 | 1 Jan 2009 | British | - |
| Peter Robert Andrew | Director | 22 Dec 2008 | 17 Jul 2015 | British | 67 years |
| Raymond Anthony Peacock | Director | 2 May 2008 | 22 Dec 2008 | British | 60 years |
| Richard Garry Perrill | Director | 29 Mar 1993 | 12 Mar 2001 | British | 68 years |
| Richard Keith Bird | Director | 3 May 2001 | 2 Dec 2002 | British | 71 years |
| William Alfred Williams | Director | 1 Jun 1992 | 1 Oct 1995 | British | 80 years |
| William Alfred Williams | Director | 30 Apr 2001 | 2 Dec 2002 | British | 80 years |
| William Peter Long | Director | 31 Mar 2000 | 5 Mar 2001 | British | 80 years |
