| Amy Stirling | Director | 1 Sept 2003 | 26 Jul 2012 | British | 57 years |
| Charles Bligh | Director | 28 Aug 2014 | 30 Jun 2018 | British | 58 years |
| David Carruth Goldie | Director | 20 Sept 2010 | 27 Sept 2013 | British | 63 years |
| Diana Mary Harding | Director | 20 Sept 2010 | 10 May 2017 | British | 59 years |
| Iain William Torrens | Director | 5 Jan 2015 | 31 Aug 2017 | British | 58 years |
| James Thomas | Director | 1 Jun 2005 | 4 Jun 2010 | British | 57 years |
| Jonathan Giles Thackray | Director | 1 Sept 2022 | 13 Feb 2023 | British | 53 years |
| Kate Ferry | Director | 9 Oct 2017 | 12 Mar 2021 | British | 53 years |
| Michael Graeme Alexander Wall | Director | 1 Sept 2003 | 31 Jan 2006 | British | 57 years |
| Phil John Eayres | Director | 12 Mar 2021 | 29 Feb 2024 | British | 57 years |
| Richard John Collier | Director | 10 Mar 2006 | 21 Jan 2010 | British | 66 years |
| Robert Patrick Kelvin Clarkson | Director | 20 Sept 2010 | 31 Jan 2012 | British | 61 years |
| Roger William Taylor | Director | 1 Sept 2003 | 29 Jan 2010 | British | 62 years |
| Scott Marshall | Secretary | 20 Nov 2009 | 30 Apr 2011 | - | - |
| Shamim Kazeneh | Secretary | 1 Apr 2008 | 20 Nov 2009 | British | - |
| Stephen Makin | Director | 26 Jul 2013 | 13 Nov 2014 | British | 57 years |
| Timothy Joseph Gerard O'gorman | Secretary | 10 Jan 2003 | 22 Dec 2006 | British | - |
| Timothy Simon Morris | Director | 10 Jan 2003 | 1 Sept 2003 | British | 62 years |
| Timothy Simon Morris | Director | 26 Feb 2009 | 20 Sept 2010 | British | 62 years |
| Timothy Simon Morris | Director | 19 Dec 2014 | 27 Feb 2018 | British | 62 years |
| Timothy Simon Morris | Secretary | 1 Sept 2003 | 19 Dec 2024 | British | - |
| Tristia Adele Harrison | Director | 20 Sept 2010 | 31 Aug 2024 | British | 53 years |