| Aderemi Ladega | Secretary | 11 Apr 2005 | 30 Jun 2010 | British | - |
| Andrea Margaret Thomas | Secretary | 1 Sept 1997 | 11 Apr 2005 | Other | - |
| Brian Michael Puffer | Director | 1 Jan 2010 | 6 Feb 2018 | British,american | 57 years |
| Brian Peevor | Secretary | 9 Feb 1994 | 31 Aug 1997 | British | - |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | - | - |
| Colin Robert Goodall | Director | 1 May 1996 | 1 Feb 1998 | British | 82 years |
| Constance Heloise Lumsden | Director | 1 Jan 2022 | 3 Apr 2025 | British | 55 years |
| David Alan Rider | Director | 6 Oct 2014 | 30 Nov 2020 | British | 62 years |
| David Hulf | Director | 1 Aug 1999 | 30 Dec 2004 | British | 76 years |
| Douglas Patrick Chapman | Director | 1 Apr 1999 | 1 Feb 2003 | British | 76 years |
| Edward Victor Dewson | Director | 1 Feb 1998 | 1 Aug 1999 | British | 84 years |
| Fiona Victoria Ryder | Director | 30 Nov 2020 | 17 Dec 2021 | British | 51 years |
| Francis William Michael Starkie | Director | 1 Jul 1998 | 30 Sept 2009 | British | 77 years |
| Gillian Elizabeth Young | Secretary | 30 Jul 1992 | 9 Feb 1994 | British | - |
| Henry Philip Labram | Director | 1 Feb 1995 | 30 Apr 1996 | British | 76 years |
| Iain Fraser Macdonald | Director | 30 Dec 2004 | 31 Dec 2009 | British | 69 years |
| James Grant Nemeth | Director | 1 Feb 2003 | 3 Aug 2005 | Us Citizen | 69 years |
| Jorge Manuel Da Silva Tavares | Director | 30 Jul 1992 | 16 Jun 1993 | Portuguese | 85 years |
| Nicholas John Carrie | Director | 30 Jul 1992 | 31 Jan 1995 | British | 90 years |
| Norman Anthony Roxburgh | Director | 16 Jun 1993 | 31 Mar 1996 | British | 81 years |
| Robert Kelly Purvis | Director | 1 May 1996 | 30 Jun 1998 | American | 84 years |
| Roger Christopher Harrington | Director | 1 Oct 2009 | 6 Oct 2014 | British | 60 years |
| Sook Yee Muk | Director | 2 Feb 2021 | 17 Sept 2021 | Malaysian | 51 years |
| Terence Michael Thornton | Director | 8 Jun 2016 | 1 Feb 2021 | British | 63 years |
| Yasin Stanley Ali | Secretary | 19 Feb 2001 | 30 Jun 2010 | - | - |
