| Adam Charles Little | Director | 1 Jun 2006 | 1 Aug 2007 | British | 75 years |
| Aderemi Ladega | Secretary | 11 Apr 2005 | 30 Jun 2010 | British | - |
| Andrea Margaret Thomas | Secretary | 1 Sept 1997 | 11 Apr 2005 | Other | - |
| Benedict John Spurway Mathews | Director | 17 Dec 2019 | 9 Dec 2020 | British | 59 years |
| Brian Michael Puffer | Director | 8 Mar 2010 | 6 Feb 2018 | British,american | 57 years |
| Brian Peevor | Secretary | 15 Jul 1994 | 31 Aug 1997 | British | - |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | - | - |
| Colin Robert Goodall | Director | 1 Nov 1992 | 15 Jul 1994 | British | 82 years |
| Douglas Patrick Chapman | Director | 23 May 1997 | 1 Feb 2003 | British | 76 years |
| Douglas Patrick Chapman | Director | 4 Dec 2006 | 30 Dec 2006 | British | 76 years |
| Francis William Michael Starkie | Director | 15 Jul 1994 | 30 Sept 2009 | British | 77 years |
| Godfrey Richard Bradley | Director | 31 May 1993 | 1 Apr 1994 | British | 79 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 |
| Katherine Anne Thomson | Director | 1 Jan 2017 | 9 Dec 2020 | British | 58 years |
| Martin Francis Giles | Director | 14 Oct 2008 | 28 Feb 2019 | British | 65 years |
| Richard Charles Grayson | Director | 15 Jul 1994 | 21 Dec 1994 | British | 85 years |
| Richard Wheatley | Director | 1 Mar 2019 | 13 Oct 2022 | British | 53 years |
| Robert Cameron Cumming | Secretary | 1 Nov 1992 | 15 Jul 1994 | British | - |
| Robert Carl Fearnley | Director | 1 Aug 2007 | 14 Oct 2008 | British | 63 years |
| Robin Dale Morris | Director | 1 Nov 1992 | 31 May 1993 | British | 80 years |
| Roger Christopher Harrington | Director | 1 Oct 2009 | 8 Mar 2010 | British | 60 years |
| Steven Weston | Director | 1 Apr 1994 | 15 Jul 1994 | British | 73 years |
| Yasin Stanley Ali | Secretary | 19 Feb 2001 | 30 Jun 2010 | - | - |