| Alan Alexander Gordon Harper | Director | 16 Aug 1992 | 16 Aug 1993 | British | 98 years |
| Andrew Paul Rydon | Director | 15 Mar 2021 | 7 Feb 2022 | British | 59 years |
| Angela Jane Moon | Secretary | 16 Aug 1992 | 7 Jan 1994 | British | - |
| Barbara-ann King | Director | 28 Oct 2022 | 15 Feb 2023 | British | 55 years |
| Christopher James Yeo | Director | 1 Dec 1999 | 6 May 2005 | British | 69 years |
| Francis Christopher Carr | Director | 7 Jul 1994 | 7 Jul 2004 | British | 81 years |
| Geoffrey David Bourne | Director | 16 Aug 1992 | 7 Jul 1994 | British | 80 years |
| Graham Eldon Pratt | Director | 16 Aug 1992 | 7 Jul 1994 | British | 90 years |
| Iain William Hooley | Secretary | 20 Jul 2010 | 4 Oct 2010 | - | - |
| Ian Maxwell-scott | Director | 7 Jul 1994 | 31 Mar 2018 | British | 81 years |
| James Robert Anthony Gordon | Secretary | 12 Jan 2023 | 22 Jun 2023 | - | - |
| Jennifer Elizabeth Mathias | Director | 21 Sept 2023 | 31 Dec 2023 | British | 52 years |
| John Hugh William Beardwell | Director | 7 Jul 1994 | 31 Jul 2000 | British | 90 years |
| Jonathan Peter Wragg | Director | 25 Jul 2007 | 31 Mar 2020 | British | 59 years |
| Judith Edna Price | Director | 15 Mar 2000 | 3 Jul 2020 | British | 69 years |
| Kathy Cong | Secretary | 4 Oct 2010 | 5 Jul 2013 | - | - |
| Mark John Studdert Redmayne | Director | 7 Jul 1994 | 30 Aug 2012 | British | 78 years |
| Mark John Studdert Redmayne | Secretary | 31 Jul 1994 | 20 Jun 2007 | British | - |
| Michael Anthony Pickford | Director | 16 Aug 1992 | 7 Jul 1994 | British | 84 years |
| Mike Rigby | Director | 15 Mar 2021 | 11 Aug 2022 | British | 57 years |
| Monica Louisa Janssens | Secretary | 21 Jan 1994 | 31 Jul 1994 | British | - |
| Nicholas Wilfrid Bagshawe | Director | 6 May 2005 | 31 Mar 2007 | British | 81 years |
| Paula Mary Watts | Secretary | 20 Jun 2007 | 20 Jul 2010 | British | - |
| Robert Paul Stockton | Director | 21 Sept 2023 | 26 Aug 2025 | British | 61 years |
| Steven Robert Kilday | Secretary | 5 Jul 2013 | 2 Jan 2023 | - | - |
| Timothy John Alexander Lenane | Director | 16 Aug 1992 | 7 Jul 1994 | British | 77 years |
| Timothy May | Director | 7 Jul 1994 | 3 Feb 2002 | British | 74 years |