| Claire Louise Robson | Director | 20 Apr 2004 | 10 Nov 2004 | British | 53 years |
| David Rae Wylde | Director | 27 Jan 2005 | 12 Apr 2006 | British | 76 years |
| Geoffrey Keith Howard Mason | Director | 20 Apr 2004 | 27 Jan 2005 | British | 72 years |
| Graeme Doctor | Director | 16 Oct 2019 | 23 May 2022 | British | 69 years |
| Hiroshi Takei | Director | 16 Oct 2019 | 31 Jan 2024 | Japanese | 61 years |
| Julian Mark Rudd-jones | Director | 16 Oct 2019 | 30 Jun 2022 | British | 71 years |
| Kirk Graham Vaughan Taylor | Director | 16 Oct 2019 | 28 Apr 2023 | British | 62 years |
| Margaret Louise Mellor | Director | 22 Oct 2004 | 27 Jan 2005 | British | 66 years |
| Nigel William Michael Goddard Chism | Director | 16 Oct 2019 | 14 Aug 2024 | British | 72 years |
| Richard Simon Muir Clancy | Director | 27 Jan 2005 | 14 Aug 2024 | British | 61 years |
| Richard Simon Muir Clancy | Secretary | 27 Jan 2005 | 24 Jan 2007 | British | - |
| Robert Nigel Johnson | Director | 19 Jan 2007 | 30 Nov 2008 | British | 68 years |
| Secretariat Services Limited | Corporate Secretary | 20 Apr 2004 | 27 Jan 2005 | United Kingdom | - |
| Stefanos Stefanou | Director | 24 Jan 2007 | 31 May 2010 | British | 85 years |
| Stephen George Harvey | Secretary | 24 Jan 2007 | 31 May 2010 | British | - |
| Trevor Paul Pearson | Director | 28 Sept 2005 | 3 Jul 2009 | British | 78 years |