| Angus Howard Fletcher | Director | 15 Jul 2009 | 28 Feb 2011 | British | 76 years |
| Anthony Alexander Preiskel | Director | 24 May 1992 | 3 Apr 2009 | British | 79 years |
| Bernadette Allinson | Secretary | 29 Sept 2006 | 22 Mar 2008 | Other | - |
| Christopher Frank Sadler | Director | 12 Dec 2000 | 6 Aug 2005 | British | 80 years |
| Christopher Frank Sadler | Secretary | 31 Jul 1993 | 12 Dec 2000 | British | - |
| Cynthia Mary Coombe | Secretary | 20 Oct 2010 | 28 Jul 2014 | - | - |
| David John Nicholson | Secretary | 22 Mar 2008 | 20 Oct 2010 | Other | - |
| Edmund Kenneth Wyatt | Secretary | 24 May 1992 | 31 Jul 1993 | British | - |
| Ian Gregory Howie Barnett | Director | 28 Feb 2011 | 31 Dec 2014 | British | 76 years |
| John Richard Ashurst | Secretary | 12 Dec 2000 | 30 Oct 2002 | British | - |
| Peter Arthur Walker | Director | 10 Aug 2005 | 24 Dec 2007 | British | 73 years |
| Philip Alwyn Bignell | Director | 24 May 1992 | 29 Sept 2006 | British | 73 years |
| Philip Alwyn Bignell | Secretary | 30 Oct 2002 | 29 Sept 2006 | British | - |
| Rashidi Olugbenga Keshiro | Director | 3 Apr 2009 | 9 Apr 2018 | British | 60 years |
| Sayed Shuja Ali | Director | 30 Apr 2015 | 1 Sept 2016 | British | 60 years |
| Seshadri Rengaswamy Karaikuruchi | Director | 30 Apr 2015 | 30 Aug 2016 | Indian | 63 years |
| Timothy John Randolph Harding | Director | 24 May 1992 | 12 Dec 2000 | British | 86 years |
| William Thomas Edgerley | Director | 24 Dec 2007 | 15 Jul 2009 | British | 70 years |