| Andrew John Cumming | Director | 8 Jul 2010 | 3 Apr 2012 | British | 72 years |
| Andrew John Kemp | Director | 9 Jan 2017 | 28 Jun 2018 | British | 56 years |
| Angeli Asha Gulhane | Secretary | 1 Mar 1994 | 22 Nov 1996 | British | - |
| Anthony Wilfrid Jukes | Director | 3 Apr 1998 | 6 Dec 2002 | British | 83 years |
| Ceri Richards | Director | 5 Nov 2007 | 23 Apr 2010 | British | 68 years |
| Charles Anthony Fry | Nominee Director | 10 Mar 1993 | 27 Apr 1993 | British | 86 years |
| Christopher Carter Jenkins | Director | 10 Mar 1993 | 3 Feb 1995 | British | 69 years |
| Colin Graham Dowsett | Director | 8 Jul 2010 | 22 Nov 2023 | British | 62 years |
| David Lawrence Shindler | Director | 5 Nov 2007 | 9 Jul 2010 | British | 68 years |
| Gerard Ashley Fox | Director | 29 May 2013 | 28 Jun 2018 | British | 63 years |
| Ian Thomas Charles Noyce | Director | 3 Feb 1995 | 17 Jul 1996 | British | 77 years |
| Jacqueline Anne Dowdeswell | Secretary | 22 Nov 1996 | 3 Apr 1998 | British | - |
| James Douglas Mortimer Smallwood | Director | 17 Jul 1996 | 17 Dec 2003 | British | 71 years |
| Joe Aitken | Director | 5 Nov 2007 | 8 Sept 2008 | British | 75 years |
| John Dudley Fishburn | Director | 27 Apr 1993 | 5 Sept 1996 | British | 80 years |
| John Michael Morrissey | Director | 18 Nov 2003 | 5 Nov 2007 | British | 65 years |
| John Robert Turner | Director | 13 Jan 2022 | 30 Jan 2024 | British | 62 years |
| Keith Roderick Glasscoe | Director | 5 Nov 2007 | 31 Aug 2009 | British | 64 years |
| Lambertus Hendrik Veldhuizen | Director | 8 Jul 2010 | 30 Sept 2011 | Dutch | 59 years |
| Liam James Kavanagh | Director | 8 Jul 2010 | 31 Aug 2011 | British | 58 years |
| Lindsay John Town | Director | 1 May 1999 | 5 Nov 2007 | British | 72 years |
| Lisbeth Ann Childs | Secretary | 2 Jun 1997 | 3 Apr 1998 | British | - |
| Matthew Sebastian Lodge | Secretary | 3 Apr 1998 | 30 Sept 2005 | British | - |
| Michelle Antoinette Angela Johnson | Secretary | 3 Sept 2013 | 25 Oct 2017 | - | - |
| Paul Gittins | Secretary | 30 Sept 2005 | 3 Sept 2013 | British | - |
| Paul Greig | Director | 13 Sept 2011 | 23 Mar 2016 | British | 65 years |
| Peter Charles Michael Diment | Secretary | 10 Mar 1993 | 1 Mar 1994 | British | - |
| Peter Charles Nicholson | Director | 5 Sept 1996 | 1 Apr 1998 | British | 92 years |
| Richard Owen Williams | Director | 14 Nov 2011 | 19 Sept 2016 | British | 67 years |
| Robert Anthony Lo | Nominee Director | 10 Mar 1993 | 1 Apr 1998 | British | 75 years |
| Robin Alexander Isaacs | Director | 24 Jul 2012 | 13 Dec 2012 | British | 71 years |
| Simon Christopher Gledhill | Director | 8 Jul 2010 | 29 May 2013 | British | 61 years |
| Stephen John Peters | Director | 3 Apr 1998 | 22 Jul 2008 | British | 73 years |
| Stephen Rosenstjerne Krag | Director | 8 Jun 2000 | 10 Jul 2002 | British | 67 years |
| Timothy James Goode | Director | 3 Apr 1998 | 23 May 2000 | British | 73 years |
| Yvonne Easton Sharp | Director | 5 Nov 2007 | 30 Jun 2010 | British | 54 years |