| Andrew Moss | Director | 21 Oct 2005 | 3 Apr 2006 | British | 62 years |
| Andrew Moss | Director | 19 Dec 2008 | 31 Dec 2022 | British | 62 years |
| Andrew Scobbie | Director | 6 Aug 1991 | 31 Aug 1993 | British | 95 years |
| Anthony Beverley Davidson | Director | 3 Apr 2006 | 29 Mar 2007 | British | 79 years |
| Barbara Craig Jordan | Secretary | 28 Jan 2002 | 3 Apr 2006 | British | - |
| Baron Anthony Webber Bernstein | Director | 16 Nov 1994 | 6 Dec 1999 | British | 88 years |
| Bernard George Brown | Director | 4 Apr 2002 | 5 Feb 2003 | British | 75 years |
| Bernard George Brown | Director | 10 Feb 2004 | 31 Dec 2005 | British | 75 years |
| Brian Hamilton Shaw | Director | 6 Dec 1999 | 31 Dec 2001 | Irish | 84 years |
| Brid Mary Meaney | Director | 31 Dec 2022 | 23 Aug 2024 | Irish | 52 years |
| Bryan Henry Portman | Director | 24 Aug 2001 | 16 Apr 2002 | British | 78 years |
| Calum Alexander Macleod | Director | 1 Jan 1992 | 15 Jun 1994 | British | 91 years |
| Charles Milne Winter | Director | 1 Oct 1993 | 16 May 1996 | British | 93 years |
| Colin Graham Rankin | Director | 12 Mar 2003 | 3 Apr 2006 | British | 67 years |
| Colin Graham Rankin | Secretary | 15 Aug 2000 | 1 Sept 2001 | British | - |
| Daniel O'neil | Director | 1 Jul 1992 | 6 Dec 1999 | British | 66 years |
| David Charles Scheinerman | Director | 11 Dec 1989 | 6 Aug 1991 | American | 66 years |
| David Henry Tower | Director | 1 Jan 1992 | 31 Mar 1994 | British | 93 years |
| David William Strecker | Director | 11 Apr 1989 | 1 Sept 1989 | British | 82 years |
| David Wyndham Davies | Director | 1 Jan 1999 | 26 Feb 2003 | British | 79 years |
| Deborah Anne Wagner | Secretary | 11 Dec 1989 | 6 Dec 1999 | British | - |
| Desmond Gerard Hudson | Director | 1 Jan 1995 | 28 Jul 1998 | British | 71 years |
| Duncan George Robin Ferguson | Director | 15 Jul 2003 | 29 Mar 2007 | British | 84 years |
| Francis Michael Shaw | Director | 6 Aug 1991 | 31 Dec 1995 | British | 90 years |
| Gavin Harry Laird | Director | 1 Jan 1992 | 6 Dec 1999 | British | 93 years |
| Gavin Macneill Stewart | Director | 6 Aug 1991 | 15 Jun 1994 | British | 67 years |
| Geoffrey Michael Ross | Director | 1 Jul 2000 | 1 Jan 2005 | British | 80 years |
| George John Estock | Director | 22 Jun 1989 | 6 Aug 1991 | American | 77 years |
| Graham Lloyd Singleton | Director | 12 Feb 2004 | 6 Sept 2005 | British | 63 years |
| Graham Lloyd Singleton | Director | 3 Apr 2006 | 30 Aug 2006 | British | 63 years |
| Iain George Pringle | Director | 20 Feb 2004 | 12 Nov 2004 | British | 67 years |
| Ian Graham Maidens | Director | 6 Sept 2005 | 29 Jan 2008 | British | 62 years |
| James Alfred Grigsby | Director | 1 Jun 1989 | 10 Apr 1990 | Us Citizen | 84 years |
| James Allen Newman | Director | 30 Aug 2006 | 1 May 2008 | British | 62 years |
| Jeremy Neil Fenton Taber | Director | 11 Jul 2002 | 12 Mar 2004 | British | 70 years |
| John Edward Heaps | Director | 9 Aug 1993 | 24 Feb 1999 | British | 87 years |
| John Joseph Hanratty | Director | 7 Dec 1999 | 27 Feb 2002 | British | 77 years |
| John Lawrence Hill | Director | 1 Jan 1992 | 30 Apr 1994 | British | 92 years |
| John Tomlins | Director | 15 Aug 2000 | 31 May 2001 | British | 78 years |
| Kerr Luscombe | Director | 18 Jul 2008 | 19 Dec 2008 | British | 61 years |
| Lawrence Kenneth Arnold | Director | 11 Apr 1989 | 30 Jun 1991 | British | 84 years |
| Malcolm James Kelly | Secretary | 1 Sept 2001 | 28 Jan 2002 | British | - |
| Maria Barbara Stafford | Director | 1 Oct 1997 | 15 Feb 2000 | British | 80 years |
| Maria Luisa Cassoni | Director | 6 Dec 1999 | 31 Dec 2000 | British | 75 years |
| Marie Isobel Ross | Secretary | 6 Dec 1999 | 15 Aug 2000 | British | - |
| Michael John Merrick | Director | 1 Oct 2002 | 23 Dec 2002 | British | 66 years |
| Michael John Merrick | Director | 1 Jan 2008 | 2 Jun 2014 | British | 66 years |
| Michael John Tyrrell | Director | 11 Apr 1989 | 1 Oct 1990 | British | 93 years |
| Michael Nicholas Biggs | Director | 3 Apr 2006 | 10 Jul 2006 | British | 74 years |
| Paul Andrew Thompson | Director | 3 Apr 2006 | 10 Jul 2006 | British | 64 years |
| Peter Colin Axten | Director | 10 Apr 1990 | 31 Oct 1990 | British | 85 years |
| Peter Jack Nowell | Director | 2 May 2003 | 3 Apr 2006 | British | 78 years |
| Peter Vincent Burdon | Director | 6 Aug 1991 | 6 Mar 1996 | British | 79 years |
| Philip Bernard Griffin-smith | Secretary | 3 Apr 2006 | 1 Sept 2006 | British | - |
| Richard Edward Keith Greenfield | Director | 6 Sept 2005 | 31 Dec 2007 | British | 70 years |
| Rizwan Sheriff | Director | 30 Sept 2017 | 1 Jun 2021 | British | 49 years |
| Robert Alfred Rayland | Director | 10 Apr 1990 | 6 Aug 1991 | British | 85 years |
| Robert Alfred Rayland | Secretary | 11 Apr 1989 | 11 Dec 1989 | British | - |
| Robert Paul Stockton | Director | 29 Mar 2007 | 18 Jul 2008 | British | 61 years |
| Roger Craine | Director | 3 Apr 2006 | 30 Apr 2007 | British | 70 years |
| Shamira Mohammed | Director | 1 Oct 2012 | 30 Sept 2017 | British | 58 years |
| Stephen Paul Baker | Director | 1 Oct 2002 | 29 Feb 2004 | British | 70 years |
| Trevor John Bayley | Director | 6 Aug 1991 | 6 Dec 1999 | British | 75 years |
| William Grahamslaw Henderson | Director | 1 May 1998 | 31 Oct 2002 | British | 72 years |
| William Michael Clowes | Director | 11 Apr 1989 | 6 Aug 1991 | British | 87 years |