| Aderemi Ladega | Secretary | 11 Apr 2005 | 30 Jun 2010 | British | - |
| Andrea Margaret Thomas | Secretary | 1 Sept 1997 | 1 Oct 2003 | Other | - |
| Andrea Margaret Thomas | Secretary | 1 Aug 2004 | 11 Apr 2005 | Other | - |
| Brian Michael Puffer | Director | 2 Apr 2010 | 6 Feb 2018 | British,american | 57 years |
| Brian Peevor | Secretary | 1 Apr 1994 | 31 Aug 1997 | British | - |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | - | - |
| Douglas Patrick Chapman | Director | 17 Jul 1992 | 31 Mar 1994 | British | 76 years |
| Douglas Patrick Chapman | Director | 23 May 1997 | 1 Feb 2003 | British | 76 years |
| Francis William Michael Starkie | Director | 1 Apr 1994 | 30 Sept 2009 | British | 77 years |
| James Grant Nemeth | Director | 1 Feb 2003 | 3 Aug 2005 | Us Citizen | 69 years |
| Jens Bertelsen | Director | 11 Apr 2018 | 17 Dec 2019 | British | 67 years |
| Julian John Watts | Director | 21 Dec 1994 | 23 May 1997 | New Zealand | 87 years |
| Julian John Watts | Secretary | 10 Apr 1992 | 31 Mar 1994 | New Zealand | - |
| Mark Traill Bentley | Director | 10 Apr 1992 | 17 Jul 1992 | British | 91 years |
| Richard Charles Grayson | Director | 10 Apr 1992 | 21 Dec 1994 | British | 85 years |
| Robert James Day | Director | 8 Dec 2015 | 29 Apr 2016 | British | 67 years |
| Roderick Guy Mason | Director | 29 Apr 2016 | 3 Nov 2020 | British | 62 years |
| Roger Christopher Harrington | Director | 1 Oct 2009 | 2 Apr 2010 | British | 60 years |
| Stuart Antony Daniels | Secretary | 1 Oct 2003 | 1 Aug 2004 | British | - |
| Timothy Mark Lucas Reading | Director | 1 Feb 2009 | 8 Dec 2015 | British | 68 years |
| Yasin Stanley Ali | Secretary | 19 Feb 2001 | 30 Jun 2010 | - | - |
