| Adrian Roger Wyatt | Director | 25 Apr 1997 | 25 May 2012 | British | 77 years |
| Alexandra Antonia Mackaness | Director | 17 May 1994 | 5 Jan 1996 | British | 65 years |
| Angus Alexander Dodd | Director | 27 Jun 2016 | 7 Nov 2019 | British | 58 years |
| Bibi Rahima Ally | Director | 20 Jan 1994 | 8 Mar 1994 | British | 65 years |
| Bibi Rahima Ally | Secretary | 20 Jan 1994 | 8 Mar 1994 | British | - |
| Brian Collett | Director | 20 Jan 1994 | 8 Mar 1994 | British | 82 years |
| Brian Jack Mitchell | Director | 25 Apr 1997 | 7 Jul 1997 | British | 90 years |
| Charlotte Ind Eastwood | Secretary | 23 Jul 2002 | 25 Oct 2004 | British | - |
| Christopher Hamilton Armon-jones | Director | 25 Apr 1997 | 7 Jul 1997 | British | 76 years |
| Christopher John Barry Walls | Director | 25 Apr 1997 | 5 Jun 1997 | British | 77 years |
| Christopher Mary Masterson | Director | 8 Mar 1994 | 25 Apr 1997 | British | 69 years |
| David Jeffrey Kirkpatrick | Director | 25 Apr 1997 | 7 Jul 1997 | British | 84 years |
| David Nicholas Gavaghan | Director | 24 Mar 2011 | 16 Feb 2012 | British | 66 years |
| Edward Stratford Dugdale | Director | 25 Apr 1997 | 7 Oct 2002 | British | 66 years |
| Gail Robson Skeete | Secretary | 20 Oct 1999 | 30 May 2000 | British | - |
| Gordon Bloor | Director | 8 Mar 1994 | 25 Apr 1997 | British | 83 years |
| James Robert Hamilton Stubber | Director | 14 Oct 2002 | 17 Feb 2006 | British | 71 years |
| John Bryan Evans | Director | 25 Apr 1997 | 7 Jul 1997 | British | 91 years |
| Maxwell David Shaw James | Director | 31 Oct 2012 | 27 Jun 2016 | British | 58 years |
| Michael Ben Jenkins | Director | 13 Jan 2017 | 31 Dec 2020 | British | 53 years |
| Michael Bernard Sayers | Director | 9 Mar 1995 | 25 Apr 1997 | British | 91 years |
| Michael Edward Riley | Director | 13 Aug 2001 | 31 Jul 2002 | British | 65 years |
| Nicholas Simon Keith Shattock | Director | 25 Apr 1997 | 24 Mar 2011 | British | 66 years |
| Nicholas Simon Keith Shattock | Secretary | 25 Apr 1997 | 20 May 1997 | British | - |
| Nigel George Ellis | Director | 25 Apr 1997 | 4 Sept 2007 | British | 86 years |
| Nigel Justin Kempner | Director | 31 Mar 2015 | 19 Jul 2016 | British | 69 years |
| Paul Hughes | Secretary | 20 May 1997 | 31 Jan 2000 | British | - |
| Rebecca Jane Worthington | Director | 22 Aug 2001 | 31 Oct 2012 | British | 54 years |
| Rebecca Jane Worthington | Secretary | 9 Dec 1998 | 23 Jul 2002 | British | - |
| Richard Arthur Barfield | Director | 25 Apr 1997 | 7 Jul 1997 | British | 78 years |
| Richard Bryan Blaxland | Director | 8 Mar 1994 | 25 Apr 1997 | British | 96 years |
| Richard James Stearn | Director | 30 Oct 2012 | 31 Mar 2015 | British | 57 years |
| Robert Walter Hinde | Director | 2 Jun 1994 | 25 Apr 1997 | British | 91 years |
| Sandra Judith Odell | Secretary | 1 Jan 2013 | 5 Oct 2016 | - | - |
| Sarah Jane Rice | Secretary | 1 Nov 1994 | 25 Apr 1997 | British | - |
| Simon Geoffrey Carter | Director | 26 May 2015 | 13 Jan 2017 | British | 50 years |
| Susan Elizabeth Dixon | Secretary | 25 Oct 2004 | 1 Jan 2013 | British | - |
| Terence Philip Goddard | Director | 8 Mar 1994 | 10 Jan 1995 | British | 85 years |
| Terence Philip Goddard | Secretary | 8 Mar 1994 | 1 Nov 1994 | British | - |
| Tonianne Dwyer | Director | 30 Nov 2006 | 16 Apr 2010 | Australian | 63 years |