| Alasdair Christopher Gillies | Director | 17 Sept 2001 | 15 May 2013 | British | 68 years |
| Alexander Park Leitch | Director | 18 Oct 1991 | 20 Feb 2004 | British | 79 years |
| Amanda Louise Knott | Secretary | 12 Jul 2007 | 3 Jul 2014 | British | - |
| Andrew John Smart | Secretary | 6 Sept 1991 | 29 Jun 1993 | British | - |
| Andrew Michael Jepp | Director | 26 Jul 2016 | 8 Aug 2022 | British | 63 years |
| Andrew Moore | Director | 14 Jun 2004 | 29 Sept 2014 | British | 68 years |
| Ann Claire Blundell | Secretary | 25 Jul 2013 | 3 Jul 2014 | - | - |
| Ann Haugh | Director | 11 May 2011 | 4 Dec 2012 | British | 55 years |
| Anne Torry | Director | 26 Jul 2016 | 1 Oct 2019 | British | 61 years |
| Brian Michael Thomas | Director | 4 May 2000 | 1 Jan 2002 | British | 74 years |
| Christopher Staples | Director | 31 May 2005 | 15 Nov 2007 | British | 62 years |
| Conor Brennan | Director | 5 Aug 2016 | 15 Jun 2018 | Irish | 59 years |
| Corina Katherine Ross | Secretary | 23 Jun 2011 | 25 Jul 2013 | British | - |
| David John Martin | Director | 7 Feb 2007 | 1 Feb 2008 | British | 68 years |
| David Perrott Sims | Director | 20 Apr 2001 | 24 Jul 2009 | British | 68 years |
| David Sedgewick Hall | Director | 28 Jan 2009 | 22 Nov 2010 | British | 73 years |
| Dennis William White | Director | 15 Dec 1998 | 4 May 2000 | British | 85 years |
| Derek Richard Woodward | Secretary | 31 May 1999 | 31 Aug 2001 | British | - |
| Eileen Hopkins | Director | 14 Jun 2004 | 29 Sept 2014 | British | 85 years |
| Gary Paul John Shaughnessy | Director | 8 Oct 2012 | 1 Jan 2016 | British | 60 years |
| Gavin Russell Cameron Munnoch | Director | 7 Feb 2007 | 1 Oct 2009 | British | 74 years |
| Geoffrey Martin Riddell | Director | 1 Dec 2002 | 16 Nov 2004 | British | 70 years |
| George Pallister Greener | Director | 25 Aug 1993 | 8 Mar 1996 | British | 81 years |
| Georgina Farrell | Director | 14 Apr 2015 | 18 Dec 2017 | Irish | 50 years |
| Helen Frances Leigh Rogers | Secretary | 14 Jul 2008 | 2 Dec 2011 | British | - |
| Ian Charles Robert Stuart | Director | 8 Nov 2004 | 31 Dec 2006 | Irish | 78 years |
| Ian Graham Seward | Director | 4 May 2000 | 28 Dec 2000 | British | 79 years |
| Ian Nicholas Lovett | Director | 15 Dec 1998 | 29 Dec 2019 | British | 82 years |
| Ian Ritchie | Secretary | 26 Mar 2012 | 3 Jul 2014 | British | - |
| James Anthony Wiltshire | Secretary | 1 Oct 1997 | 31 May 1999 | British | - |
| Jayne Michelle Meacham | Secretary | 12 Jul 2007 | 2 May 2008 | British | - |
| Jeremy Ward Grayburn | Director | 15 Dec 1998 | 6 Apr 2001 | British | 74 years |
| Joel Goodman Joffe | Director | 6 Sept 1991 | 20 Dec 1993 | British | 94 years |
| Jonathan Plumtree | Director | 18 Oct 2013 | 28 Feb 2017 | British | 60 years |
| Kay Martin | Director | 8 Dec 2011 | 1 Jul 2016 | British | 59 years |
| Keith Reginald Baldwin | Director | 25 Aug 1993 | 31 Aug 2003 | British | 78 years |
| Lawrence Churchill | Director | 1 Dec 2002 | 24 Jun 2004 | British | 80 years |
| Lily Olisa Holding | Secretary | 28 Jul 2004 | 31 May 2005 | British | - |
| Mark Christopher Chessher | Director | 20 Sept 2005 | 16 Feb 2007 | British | 66 years |
| Mark George Culmer | Director | 17 Dec 2001 | 12 Jan 2004 | British | 64 years |
| Martin David Moule | Director | 2 Feb 2004 | 25 Apr 2005 | British | 71 years |
| Michael Joseph Brennan | Director | 9 Oct 2009 | 31 Aug 2011 | British Irish | 74 years |
| Michael Nicholas Quinton | Director | 9 Oct 2009 | 30 Nov 2010 | British | 65 years |
| Miranda Chalk | Director | 10 Dec 2014 | 28 Sept 2017 | British | 67 years |
| Nigel Lowe | Secretary | 31 May 2005 | 12 Jul 2007 | British | - |
| Patrick Henry Osullivan | Director | 15 Dec 1998 | 2 Dec 2002 | Irish | 77 years |
| Paul Victor Sant Manduca | Director | 15 Dec 1998 | 22 Feb 1999 | British | 75 years |
| Peter Charles Campbell | Director | 8 Oct 2012 | 31 Jul 2014 | British | 68 years |
| Peter Charles Howe | Secretary | 29 Jun 1993 | 1 Oct 1997 | British | - |
| Peter Charles Howe | Secretary | 4 Sept 2001 | 28 Jul 2004 | British | - |
| Phil Andrew Hodkinson | Director | 15 Dec 1998 | 14 Aug 2001 | British | 68 years |
| Philip Smith | Director | 6 Sept 1991 | 12 Oct 1998 | British | 79 years |
| Raymond Greenshields | Director | 20 Apr 2001 | 14 Oct 2002 | Australian | 79 years |
| Stephen Lewis | Director | 9 Oct 2009 | 26 Jun 2014 | British | 58 years |
| Subo Shanmuganathan | Director | 10 Dec 2014 | 31 Aug 2017 | British | 55 years |
| Sydney Lipworth | Director | 6 Sept 1991 | 31 Dec 1994 | British | 95 years |
| Timothy James Bailey | Director | 1 Jan 2021 | 7 Mar 2025 | British | 52 years |
| Timothy Paul Culling | Director | 28 Nov 2007 | 10 Apr 2025 | British | 65 years |
| Tulsi Ratakonda Naidu | Director | 8 Feb 2017 | 31 Dec 2020 | British | 53 years |
| Vibhu Ranjan Sharma | Director | 14 Apr 2015 | 1 Jul 2016 | American | 60 years |
| Vinicio Cellerini | Director | 6 Jun 2013 | 9 Jul 2018 | Swiss | 62 years |