| Alexander Hepburn Scott | Director | 12 Jul 1992 | 1 Apr 1996 | British | 91 years |
| Alexander James Marsh | Director | 16 Feb 1999 | 11 Aug 2014 | British | 80 years |
| Alfred George Astle | Director | 17 Aug 1999 | 31 Dec 2001 | British | 71 years |
| Colin Patterson | Director | 1 Apr 2001 | 1 Jul 2017 | British | 91 years |
| David Overington Lewis | Director | 11 Apr 2005 | 14 Feb 2012 | British | 95 years |
| Dean Riggall | Director | 1 Feb 2020 | 30 Apr 2024 | British | 53 years |
| Declan Murray | Director | 1 Nov 2010 | 31 Mar 2012 | Irish | 73 years |
| Edward George Walter Lunn | Director | 1 Nov 1993 | 31 Mar 2001 | British | 105 years |
| Erik Alexander Steven Porter | Director | 12 Jul 1992 | 31 Jul 1998 | British | 87 years |
| Francis Ross Gibb | Director | 12 Jul 1992 | 10 Feb 2004 | British | 99 years |
| Godfrey Oliver Whitehead | Director | 12 Jul 1992 | 30 Apr 1993 | British | 85 years |
| Ian Lauchlan Steven | Director | 1 Apr 1996 | 10 Feb 2004 | British | 100 years |
| John Allen | Secretary | 12 Jul 1992 | 16 Feb 1999 | British | - |
| Kevin William Goodman | Director | 20 Aug 2004 | 31 Jan 2020 | British | 75 years |
| Martyn Robert Frost | Director | 12 Jul 1992 | 1 Aug 1994 | British | 76 years |
| Max Ainley Graesser | Director | 11 Aug 2014 | 31 May 2018 | British | 69 years |
| Michael Andrew Helliwell | Director | 31 Mar 2012 | 1 Sept 2016 | British | 60 years |
| Neal Gregory Misell | Director | 6 Dec 2011 | 16 Apr 2013 | British | 59 years |
| Nicholas James William Borrett | Secretary | 27 Jul 2012 | 8 Jul 2014 | - | - |
| Peter Frederick Morgan | Director | 10 Feb 2004 | 15 Sept 2009 | British | 92 years |
| Philip John Potter | Director | 26 Sept 2018 | 27 Feb 2023 | British | 56 years |
| Robert Scott Martin | Secretary | 17 Feb 1999 | 21 Apr 2004 | British | - |
| Robert Stewart | Director | 12 Feb 2002 | 27 Jul 2004 | British | 73 years |
| Sarbhjit Singh Kleir | Director | 14 Feb 2012 | 31 Jan 2018 | British | 55 years |
| Stanley Alan Royall Billiald | Secretary | 19 Nov 2002 | 24 Jun 2010 | Other | - |
| Terence Nigel Woolley | Director | 9 Jul 2008 | 6 Dec 2011 | British | 74 years |
| The Trustee Corporation Limited | Corporate Director | 17 Dec 2009 | 26 Sept 2018 | United Kingdom | - |
| Valerie Francine Anne Teller | Secretary | 24 Jun 2010 | 27 Jul 2012 | - | - |
| Willem Dirk De Boer | Director | 12 Jul 1992 | 17 Aug 1999 | Dutch | 76 years |