| Adam Miles Kramer | Secretary | 16 Mar 2021 | 2 Jan 2023 | - | - |
| Ahmed Al-dadah | Director | 14 Jul 2020 | 27 Jul 2020 | British | 45 years |
| Alan Lindsay Woodhead | Director | 30 Nov 2004 | 16 Jul 2015 | British | 77 years |
| Albert William Allan | Director | 14 Apr 2008 | 28 Aug 2012 | British | 60 years |
| Andrew Jonathan Barrie | Director | 7 Apr 2020 | 30 Sept 2022 | British | 59 years |
| Andrew Neil Ellis | Director | 4 Nov 2002 | 26 Feb 2004 | British | 62 years |
| Andrew Paterson Russell | Director | 4 Nov 2002 | 26 Nov 2003 | British | 63 years |
| Andrew Robert Douglas Pringle | Director | 7 Apr 2008 | 14 Sept 2016 | British | 80 years |
| Anthony Francis Pryor | Director | 16 Mar 1994 | 1 Sept 1994 | British | 79 years |
| Anthony Francis Pryor | Director | 10 Oct 2000 | 24 Mar 2005 | British | 79 years |
| Arthur Edward Stephens | Director | 2 Dec 1994 | 1 Jan 1997 | Usa | 78 years |
| Ashok Kumar Bakshi | Director | 1 Nov 1994 | 1 Sept 1995 | British | 84 years |
| Basil Richard Ryland Butler | Director | 1 Sept 1992 | 10 Dec 1997 | British | 96 years |
| Colin Such | Director | 28 Apr 2011 | 1 May 2013 | British | 70 years |
| Daniel Frank Grand | Director | 7 Apr 2008 | 14 Apr 2010 | British | 75 years |
| David Addison Milne Dunbar | Director | 1 Sept 1992 | 13 May 1994 | British | 85 years |
| David John Lesar | Director | 11 Dec 1996 | 22 Dec 2000 | British | 73 years |
| David Lindsay Gibson | Director | 1 Jul 2013 | 7 Apr 2020 | British | 64 years |
| Erik Francis Layzell | Director | 2 Dec 2005 | 31 Jan 2008 | British | 63 years |
| Farhan Mujib | Director | 28 Aug 2012 | 7 Apr 2020 | Australian | 63 years |
| Gary Victor Morris | Director | 22 Dec 2000 | 15 May 2002 | American | 73 years |
| Gina Mary Wilson | Secretary | 2 Jan 2020 | 16 Mar 2021 | - | - |
| Gordon Bryden | Director | 30 Jun 2005 | 7 Apr 2008 | British | 69 years |
| Iain Kenneth Morgan | Director | 26 Feb 2004 | 2 Dec 2005 | British | 68 years |
| Ian Maurice Henniker Smith | Secretary | 1 Sept 1992 | 30 Nov 2004 | British | - |
| James Arnot Hamilton | Director | 1 Jan 1998 | 31 Dec 1999 | British | 103 years |
| James Arthur Barrett | Director | 31 Jan 2008 | 31 Jul 2020 | British | 61 years |
| James Edward Lewis | Director | 14 Apr 2008 | 24 Jan 2012 | British | 49 years |
| James Edward Lewis | Director | 18 Jan 2013 | 7 Apr 2020 | British | 49 years |
| James Richard Samuel Morris | Director | 1 Sept 1992 | 21 Oct 1992 | British | 101 years |
| Jan Egil Braendeland | Director | 3 Nov 2015 | 7 Apr 2020 | Norwegian | 59 years |
| John Llyr Evans | Director | 4 Nov 2002 | 30 Jun 2005 | British | 63 years |
| John Matthew Bligh | Director | 1 Sept 1992 | 6 Dec 1996 | British | 79 years |
| Keith Nicholas Henry | Director | 1 Sept 1992 | 10 Feb 1995 | English | 81 years |
| Kevin James Forder | Director | 5 Jan 2005 | 5 Oct 2005 | British | 71 years |
| Larry Farmer | Director | 1 Sept 1992 | 31 Dec 2001 | British | 87 years |
| Manouchehr Raznahan | Director | 1 Sept 1992 | 27 Jul 1995 | British | 81 years |
| Martin Nelhams | Secretary | 30 Nov 2004 | 2 Jan 2020 | British | - |
| Martin Simmonite | Director | 25 Aug 2015 | 27 Jul 2020 | British | 57 years |
| Mel Oliver Fitzgerald | Director | 1 Mar 2001 | 4 Nov 2002 | Irish | 76 years |
| Michael Owen Daly | Director | 7 Apr 2020 | 9 Apr 2024 | British | 63 years |
| Millard Walker | Director | 26 Nov 2003 | 1 Oct 2004 | United States Citzen | 79 years |
| Neil Patrick Hegarty | Director | 24 Jan 2012 | 18 Jan 2013 | British | 74 years |
| Nigel John Paton | Director | 18 Nov 2002 | 1 Sept 2003 | British | 71 years |
| Norman Charles Chambers | Director | 20 Jul 1993 | 24 Sept 1996 | American | 77 years |
| Paul Emmanuel Kahn | Director | 20 Oct 2022 | 12 Jul 2024 | British | 60 years |
| Richard Francis Sullivan | Director | 1 May 2013 | 7 Apr 2020 | British | 55 years |
| Robert Keiller | Director | 30 Nov 2004 | 30 Apr 2006 | British | 62 years |
| Ronald Gordon Beveridge | Director | 18 Jun 2002 | 30 Nov 2004 | British | 81 years |
| Stanislaus Augustine Knez | Director | 1 Sept 2003 | 5 Jan 2005 | British | 66 years |
| Stephen George Lloyd | Director | 30 Jan 2006 | 28 Apr 2011 | British | 75 years |
| Thomas Elwood Knight | Director | 1 Sept 1992 | 30 Nov 1996 | American | 87 years |
| Timothy Mary Slattery | Director | 4 Nov 2002 | 30 Nov 2004 | British | 82 years |
| Trevor Mills Noble | Director | 13 Dec 1995 | 28 Jul 2000 | British | 80 years |
| Trevor Mills Noble | Director | 4 Nov 2002 | 27 Feb 2004 | British | 80 years |
| Walter Twelve Jackson | Director | 1 Sept 1992 | 29 Nov 1996 | American | 86 years |
| William Philip Hobden | Director | 30 Nov 2004 | 14 Apr 2008 | British | 75 years |