| Anthony Graham Jones | Secretary | 1 Jan 1993 | 8 Oct 1993 | British | - |
| Catherine Bernadette Wheatley | Secretary | 7 Jun 1996 | 1 Jul 1998 | British | - |
| Colin Richard Clapham | Secretary | 1 Dec 2009 | 19 Oct 2018 | - | - |
| Colin Richard Clapham | Director | 15 Feb 2017 | 31 Oct 2019 | British | 81 years |
| Debbie Sempie | Director | 9 Dec 2008 | 15 Feb 2017 | British | 43 years |
| Douglas Victor Garrod | Director | 1 Jan 1993 | 5 Jul 1994 | British | 85 years |
| Henry William Moore | Director | 1 Jan 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 |
| John Frederick Laker | Director | 1 Nov 1995 | 1 Feb 1997 | British | 80 years |
| Karen Lorraine Atterbury | Director | 1 Apr 2011 | 16 Jan 2012 | British | 50 years |
| Karen Lorraine Atterbury | Secretary | 4 Feb 2002 | 1 Dec 2009 | British | - |
| Katherine Elizabeth Hindmarsh | Director | 31 Oct 2019 | 1 Sept 2023 | British | 37 years |
| Martin Geoffrey Boynes | Director | 25 Mar 1997 | 31 Mar 2011 | British | 75 years |
| Michael Andrew Lonnon | Secretary | 29 Nov 2023 | 9 Dec 2024 | - | - |
| Michael Andrew Lonnon | Director | 16 Jan 2012 | 9 Dec 2024 | British | 69 years |
| Michael Thomas Bird | Director | 11 Mar 1993 | 28 Sept 1995 | British | 80 years |
| Molly Banham | Secretary | 19 Oct 2018 | 29 Nov 2023 | - | - |
| Omolola Olutomilayo Adedoyin | Director | 1 Sept 2023 | 24 Apr 2024 | British | 51 years |
| Richard Cyril Campbell Saville | Director | 1 Apr 1994 | 14 May 2001 | British | 78 years |
| Richard Seymour Waghorn | Director | 4 Oct 1995 | 31 Dec 2007 | British | 71 years |
| Roger Norman Alexander Wood | Director | 1 Jan 1993 | 31 Mar 1994 | British | 79 years |
| Shalom David Wiseman | Director | 1 Jan 1993 | 30 Apr 1993 | British | 83 years |
| Stefan Edward Bort | Secretary | 8 Oct 1993 | 7 Jun 1996 | British | - |
| Stefan Edward Bort | Secretary | 1 Jul 1998 | 4 Feb 2002 | British | - |
| Steven Leven | Secretary | 30 Oct 1995 | 21 Feb 1996 | British | - |
| Timothy Stuart Ross | Director | 1 Jan 1993 | 8 Feb 1996 | British | 78 years |
