| Alastair Mcglashan | Secretary | 14 Feb 1992 | 1 Jul 1996 | British | - |
| Amanda Jane Sunter | Director | 18 Nov 1994 | 30 Nov 1996 | British | 63 years |
| Andrew Leon Dutton | Director | 1 Apr 1997 | 14 May 1998 | British | 62 years |
| Anthony James Watson | Director | 13 Sept 2019 | 6 Dec 2019 | British | 53 years |
| Brian Michael Johnson | Director | 30 Aug 1996 | 21 Oct 2009 | British | 78 years |
| Colin Richard Clapham | Director | 16 Jan 2012 | 31 Oct 2019 | British | 80 years |
| David James Ritchie | Director | 1 Jul 2002 | 9 Jan 2017 | British | 56 years |
| David Nicholas Pearson | Director | 6 May 2010 | 16 Sept 2011 | British | 57 years |
| Ian Calvert Sutcliffe | Director | 31 Mar 2006 | 14 Apr 2008 | British | 66 years |
| James John Jordan | Director | 31 Dec 2007 | 15 Feb 2008 | British | 64 years |
| James Phillips | Director | 31 Oct 2001 | 19 Apr 2006 | British | 74 years |
| John Michael Emery | Secretary | 1 Jul 1996 | 3 Jan 2002 | British | - |
| Karen Lorraine Atterbury | Director | 30 Sept 2011 | 16 Jan 2012 | British | 49 years |
| Katherine Elizabeth Hindmarsh | Director | 31 Oct 2019 | 30 Sept 2023 | British | 36 years |
| Keith Bryan Carnegie | Director | 26 Jan 2017 | 13 Sept 2019 | British | 56 years |
| Keith Bryan Carnegie | Director | 9 Jan 2017 | 31 Dec 2023 | British | 56 years |
| Martin Trevor Digby Palmer | Secretary | 3 Jan 2002 | 25 Jun 2021 | British | - |
| Michael Andrew Lonnon | Director | 27 Jul 2015 | 29 Jul 2025 | British | 68 years |
| Michael John Freshney | Director | 15 Nov 1995 | 1 Apr 1996 | British | 82 years |
| Michael Stirrop | Director | 21 Oct 2009 | 13 Sept 2019 | British | 47 years |
| Neville Tullah | Director | 14 Feb 1992 | 30 Aug 1996 | British | 81 years |
| Nicola Amanda Eleanor Hastie | Director | 19 Apr 2006 | 31 Dec 2007 | British | 63 years |
| Paul Anthony Moran | Director | 13 Sept 2019 | 30 Apr 2024 | British | 57 years |
| Paul Thomson Smith | Director | 1 Apr 1996 | 31 Oct 2001 | British | 68 years |
| Peter Anthony Carr | Director | 15 Feb 2008 | 30 Sept 2011 | British | 71 years |
| Peter Martin Truscott | Director | 14 Apr 2008 | 27 Jul 2015 | British | 63 years |
| Peter Timothy Redfern | Director | 30 Nov 2001 | 31 Mar 2006 | British | 55 years |
| Ronald Norman Walford | Director | 14 Feb 1992 | 30 Jun 2002 | United Kingdom | 81 years |
| Roy Ellis | Director | 14 Feb 1992 | 31 Jul 1994 | British | 77 years |
| Simon John Guest | Director | 21 May 1998 | 30 Nov 2001 | British | 69 years |
| Stephen James Rosier | Director | 14 Feb 1992 | 31 Jan 1996 | British | 70 years |