| David Keith Tipping | Secretary | 11 May 2007 | 10 Apr 2012 | British | - |
| Elizabeth Barbara Cheney | Secretary | 24 Apr 2017 | 31 Dec 2017 | - | - |
| Frances Louise Atkinson Brand | Director | 4 Oct 1995 | 11 Mar 1997 | British | 66 years |
| Jeremy Philip Hilton Vickers | Secretary | 19 Jun 2014 | 24 Jul 2015 | - | - |
| Jeremy Philip Hilton Vickers | Director | 23 May 2014 | 24 Jul 2015 | British | 68 years |
| Martin John Sidders | Director | 27 Apr 2009 | 19 Jun 2014 | British | 67 years |
| Martin John Sidders | Secretary | 11 Apr 2012 | 19 Jun 2014 | - | - |
| Michael Blakey | Director | 24 Jul 2015 | 30 Jun 2020 | British | 62 years |
| Nicholas Martin Dulcken | Director | 27 Apr 2009 | 31 Dec 2019 | British | 58 years |
| Rialto (management) Limited | Corporate Director | 11 Mar 1997 | 11 May 2007 | United Kingdom | - |
| Rialto (secretarial) Limited | Corporate Secretary | 11 Mar 1997 | 11 May 2007 | United Kingdom | - |
| Richard Alexander Kessel | Secretary | 5 Jan 1995 | 23 Oct 1995 | British | - |
| Roy Malcolm Allen | Secretary | 23 Oct 1995 | 11 Mar 1997 | British | - |
| Stephen Charles Casey | Director | 11 May 2007 | 20 Apr 2009 | British | 76 years |
| Stephen Conrad Potter | Director | 5 Jan 1995 | 11 Mar 1997 | British | 79 years |
| Stephen Conrad Potter | Director | 11 May 2007 | 27 Apr 2009 | British | 79 years |
| Susan Gaynor Hide | Secretary | 24 Jul 2015 | 24 Apr 2017 | - | - |
| Wayne Morris Harrison | Director | 5 Jan 1995 | 25 Aug 1995 | British | 66 years |