| Andrew Bickers | Director | 2 Apr 2015 | 30 Dec 2015 | British | 52 years |
| Angela Lockwood | Secretary | 13 Jun 2006 | 25 Nov 2011 | British | - |
| Brian White Fisher | Secretary | 6 May 1997 | 1 Sept 2000 | British | - |
| Charles William Haresnape | Director | 2 Dec 2005 | 31 Dec 2006 | British | 68 years |
| Daniel Rodger Mcarthur | Director | 23 Oct 2000 | 17 May 2002 | British | 77 years |
| David Charles Carter | Secretary | 12 Mar 1997 | 6 May 1997 | British | - |
| Emma Louise Lawrence | Director | 28 Apr 2016 | 16 Aug 2021 | British | 44 years |
| Femi Sobo | Secretary | 16 May 2003 | 24 Dec 2003 | British | - |
| George Aikman Emslie White | Director | 6 May 1997 | 30 Apr 2003 | British | 81 years |
| George Edward Mitchell | Director | 6 May 1997 | 23 Oct 2000 | British | 76 years |
| George Russell Sandars | Nominee Director | 12 Mar 1997 | 6 May 1997 | British | 72 years |
| Helen Mary Lakin | Secretary | 1 Sept 2000 | 30 Nov 2001 | British | - |
| Iain William St Clair Scott | Director | 1 Sept 1997 | 30 Sept 2000 | British | 80 years |
| Ian Gordon Stewart | Director | 17 May 2002 | 9 Dec 2016 | British | 66 years |
| James Robin Browning | Director | 24 Jun 1997 | 31 Aug 1997 | British | 87 years |
| Janet Turner | Director | 21 Dec 2017 | 26 Mar 2019 | British | 67 years |
| Johan Robin Charles Von Schmidt Auf Altenstadt | Director | 26 Mar 2019 | 13 Jun 2024 | British | 57 years |
| John Henry Lloyd | Director | 30 Apr 2003 | 2 Dec 2005 | British | 71 years |
| Lavanya Menon | Director | 17 Aug 2021 | 11 Sept 2024 | British | 44 years |
| Lysanne Jane Warren Black | Secretary | 6 May 1997 | 1 Sept 2000 | British | - |
| Marc Stephen Page | Director | 13 May 2013 | 2 Apr 2015 | British | 53 years |
| Mark Stuart Dolman | Director | 9 Dec 2016 | 4 Jul 2017 | British | 55 years |
| Nigel Geoffrey Stockton | Director | 31 Dec 2006 | 1 Mar 2007 | British | 60 years |
| Paul Gittins | Secretary | 25 Nov 2011 | 26 Jul 2016 | - | - |
| Peter Curran | Director | 1 Mar 2007 | 22 Dec 2009 | British | 60 years |
| Sally Mayer | Secretary | 30 Nov 2001 | 13 Jun 2006 | British | - |
| Tanya Marie Foxe | Director | 12 Sept 2024 | 11 Jun 2025 | Irish | 38 years |
| Tracey Anne Hill | Director | 22 Dec 2009 | 22 Dec 2017 | British | 62 years |
| William Alexander Donald | Director | 6 May 1997 | 23 Oct 2000 | British | 73 years |
