| Alison Jane Henriksen | Director | 13 Jan 2020 | 31 Jul 2025 | Australian,british | 58 years |
| Barrington John Albert Furr | Director | 1 Dec 2006 | 14 Nov 2014 | British | 82 years |
| Cara Crichton | Secretary | 13 Apr 2013 | 15 Jul 2013 | - | - |
| Cara Crichton | Secretary | 27 Jan 2014 | 9 Jun 2014 | - | - |
| Cedric Annesley Scroggs | Director | 27 Oct 1994 | 31 Mar 2000 | British | 84 years |
| Christopher John Vickers | Secretary | 10 Dec 2002 | 22 Jul 2004 | British | - |
| Colin Peter Norman | Director | 27 Oct 1994 | 31 May 1995 | British | 72 years |
| Daniel William David Hartley | Secretary | 9 Jun 2014 | 1 Jan 2025 | - | - |
| David Peter Timmins | Director | 29 Mar 2004 | 2 Apr 2007 | British | 73 years |
| David Peter Timmins | Secretary | 22 Jul 2004 | 12 Jun 2006 | British | - |
| Duncan John Maskell | Director | 1 Apr 2014 | 15 Nov 2018 | British | 64 years |
| Edwin William White | Director | 27 Oct 1994 | 17 Jan 2008 | British | 85 years |
| Francis Hall | Secretary | 1 Apr 2001 | 10 Dec 2002 | British | - |
| Guy Trehane | Director | 27 Oct 1994 | 2 Sept 1999 | British | 73 years |
| Ian Brian Farrelly | Secretary | 12 Jun 2006 | 13 Apr 2013 | British | - |
| Ian Charles | Director | 1 Jul 2018 | 31 May 2021 | British | 68 years |
| Jason William Karl Chin | Director | 1 Apr 2021 | 31 May 2025 | British | 52 years |
| John Alexander Craven | Director | 27 Oct 1994 | 31 Dec 1996 | British | 88 years |
| John Eric Hawkins | Director | 5 Jul 2000 | 11 Nov 2010 | British | 72 years |
| John Graham Worby | Director | 1 Sept 2004 | 1 Apr 2013 | British | 75 years |
| John Hartley Beckett | Director | 27 Oct 1994 | 12 Aug 2004 | British | 90 years |
| John Norman Sherwood | Director | 26 Sept 1994 | 27 Oct 1994 | British | 79 years |
| Julian James Bayley | Director | 1 Mar 2000 | 30 Mar 2001 | British | 81 years |
| Karim Bitar | Director | 1 Sept 2011 | 13 Sept 2019 | American | 60 years |
| Lawrence David Fairall | Secretary | 27 Oct 1994 | 31 Mar 2001 | British | - |
| Lykele Jurrit Van Der Broek | Director | 1 Jul 2014 | 22 Nov 2023 | Dutch | 71 years |
| Martin Brett Boden | Director | 2 Apr 2007 | 26 Feb 2009 | British | 66 years |
| Michael Roy David Roller | Director | 17 Mar 2003 | 6 Aug 2003 | British | 60 years |
| Mike Buzzacott | Director | 7 May 2009 | 17 Nov 2016 | British | 78 years |
| Paul William Beswick | Director | 26 Sept 1994 | 27 Oct 1994 | British | 75 years |
| Paul William Beswick | Secretary | 26 Sept 1994 | 27 Oct 1994 | British | - |
| Philip Noel Nigel Turner | Director | 17 Jan 2008 | 15 Nov 2018 | British | 76 years |
| Richard Kenneth Wood | Director | 19 Dec 1996 | 30 Sept 2011 | British | 81 years |
| Robert Arthur Lawson | Director | 11 Nov 2010 | 25 Nov 2020 | British | 81 years |
| Robert Weir | Director | 27 Oct 1994 | 7 Apr 1997 | British | 74 years |
| Stephen David Wilson | Director | 14 Jan 2013 | 30 Sept 2023 | British | 66 years |
| Stephen John Amies | Director | 27 Oct 1994 | 2 Sept 1999 | British | 75 years |
| Thomas Edward Kilroy | Secretary | 15 Jul 2013 | 27 Jan 2014 | - | - |
| Thomas John Kelly | Director | 27 Oct 1994 | 2 Sept 1999 | British | 85 years |
| Thomas Neville | Director | 27 Oct 1994 | 28 Aug 1997 | British | 94 years |
| Thomas Philip Acton | Director | 13 Jun 1995 | 17 Mar 2003 | British | 67 years |
| Timothy Stephen Kenneth Yeo | Director | 1 Oct 2002 | 31 May 2004 | British | 80 years |