| Aderemi Ladega | Secretary | 11 Apr 2005 | 30 Jun 2010 | British | - |
| Alan Henry Haywood | Director | 1 Nov 2014 | 1 Jan 2017 | British | 60 years |
| Andrea Margaret Thomas | Secretary | 1 Sept 1997 | 11 Apr 2005 | Other | - |
| Anthony Bryan Hayward | Director | 4 May 2007 | 30 Nov 2010 | British | 69 years |
| Brian Gilvary | Director | 1 Jan 2012 | 8 Jul 2019 | British | 64 years |
| Brian Peevor | Secretary | 23 May 1997 | 31 Aug 1997 | British | - |
| Byron Elmer Grote | Director | 21 Nov 2002 | 1 Jan 2012 | British And Us Citiz | 78 years |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | - | - |
| David James Bucknall | Director | 1 Jan 2012 | 1 Nov 2014 | British | 58 years |
| David James Bucknall | Director | 8 Jul 2019 | 20 Feb 2021 | British | 58 years |
| David Simon | Director | 16 Apr 1992 | 9 Jun 1995 | British | 87 years |
| Debasish Satya Sanyal | Director | 21 Dec 2010 | 1 Jan 2012 | British | 61 years |
| Edmund John Phillip Browne | Director | 10 Jun 1995 | 1 May 2007 | British | 78 years |
| John Francis Harcourt Ashburton | Director | 16 Apr 1992 | 30 Jun 1995 | British | 98 years |
| John Gordon Sinclair Buchanan | Director | 5 May 1998 | 21 Nov 2002 | British | 83 years |
| Julian John Watts | Director | 21 Dec 1994 | 23 May 1997 | New Zealand | 87 years |
| Julian John Watts | Secretary | 16 Feb 1995 | 23 May 1997 | New Zealand | - |
| Katherine Anne Thomson | Director | 1 Jan 2017 | 1 Feb 2022 | British | 58 years |
| Niamh Marie Staunton | Director | 1 Feb 2022 | 6 Jan 2025 | Irish | 48 years |
| Richard Charles Grayson | Director | 16 Apr 1992 | 21 Dec 1994 | British | 85 years |
| Richard Charles Grayson | Secretary | 16 Apr 1992 | 16 Feb 1995 | British | - |
| Richard William Newton | Director | 25 Feb 1993 | 5 May 1998 | British | 81 years |
| Sydney Ray Robertson | Director | 16 Apr 1992 | 25 Feb 1993 | United States | 85 years |
| Yasin Stanley Ali | Secretary | 19 Feb 2001 | 30 Jun 2010 | - | - |
