| Alice Hannah Black | Director | 31 Dec 2019 | 26 Aug 2022 | British | 42 years |
| Catherine Bernadette Wheatley | Secretary | 30 Apr 1996 | 1 Jul 1998 | British | - |
| Colin Richard Clapham | Secretary | 1 Dec 2009 | 19 Oct 2018 | - | - |
| Fiona Elizabeth Middleton | Director | 6 Mar 2009 | 5 Nov 2013 | British | 57 years |
| Francis Milne Kennedy | Director | 1 Jan 1993 | 1 Mar 1996 | British | 87 years |
| Ian Malcolm Ross | Director | 4 Mar 1996 | 30 Sept 2001 | British | 86 years |
| James John Jordan | Director | 4 Feb 2002 | 31 Dec 2019 | British | 64 years |
| James John Jordan | Secretary | 20 Dec 2004 | 26 Jan 2009 | British | - |
| Jennifer Canty | Director | 24 Apr 2024 | 30 Sept 2025 | British | 32 years |
| John Lewis Addiscott | Director | 1 Jan 1993 | 1 Mar 1996 | British | 79 years |
| Karen Lorraine Atterbury | Secretary | 4 Feb 2002 | 1 Dec 2009 | British | - |
| Katherine Elizabeth Hindmarsh | Director | 26 Aug 2022 | 1 Sept 2023 | British | 36 years |
| Matthew Robert Kelly | Director | 30 Jul 2008 | 6 Mar 2009 | British | 49 years |
| Michael Andrew Lonnon | Secretary | 29 Nov 2023 | 9 Dec 2024 | - | - |
| Michael Andrew Lonnon | Director | 5 Nov 2013 | 9 Dec 2024 | British | 68 years |
| Molly Banham | Secretary | 19 Oct 2018 | 29 Nov 2023 | - | - |
| Omolola Olutomilayo Adedoyin | Director | 1 Sept 2023 | 24 Apr 2024 | British | 50 years |
| Peter William Irving Ingram | Secretary | 1 Jan 1993 | 1 Jul 1994 | British | - |
| Richard Seymour Waghorn | Director | 30 Jan 2002 | 30 Jul 2008 | British | 70 years |
| Roderick David Maciver | Director | 1 Jan 1993 | 1 Mar 1996 | British | 77 years |
| Stefan Edward Bort | Director | 4 Mar 1996 | 4 Feb 2002 | British | 65 years |
| Stefan Edward Bort | Secretary | 1 Jul 1994 | 30 Apr 1996 | British | - |
| Stefan Edward Bort | Secretary | 1 Jul 1998 | 4 Feb 2002 | British | - |
| Steven Leven | Secretary | 1 Jul 1994 | 21 Feb 1996 | British | - |
