| Alistair Michael Stokes | Director | 26 Nov 1999 | 31 Dec 2000 | British | 77 years |
| Andrew Dickinson | Secretary | 12 Oct 2007 | 13 Jul 2010 | British | - |
| Andrew John Allars | Director | 16 Oct 1992 | 1 Jul 1996 | British | 68 years |
| Andrew John Oakley | Director | 1 Jan 2015 | 10 Jun 2016 | Australian | 63 years |
| Anne Philomena Hyland | Director | 11 Nov 2010 | 1 Jul 2013 | Irish | 65 years |
| Antony Richard Good | Director | 14 Jul 1992 | 16 Oct 1992 | British | 95 years |
| Bruce Joseph Roser | Director | 14 Jul 1992 | 30 Aug 1996 | British | 90 years |
| Christopher Paul Blackwell | Director | 11 Nov 2010 | 1 Jul 2015 | British | 64 years |
| Colin Clive Dalton | Director | 14 Jul 2005 | 5 Jul 2011 | British | 75 years |
| David Charles Chilvers | Director | 14 Jul 1992 | 16 Oct 1992 | British | 69 years |
| David Winston Lewis | Secretary | 19 Dec 2000 | 14 Jul 2005 | British | - |
| Donald Stanford Hetzel | Director | 14 Jul 1992 | 1 Jul 1996 | American | 84 years |
| Donald Stanford Hetzel | Director | 25 Nov 1996 | 27 Jan 1998 | American | 84 years |
| Duncan John Lloyd Fitzwilliams | Director | 16 Oct 1992 | 1 Jul 1996 | British | 82 years |
| Gary J Anderson | Director | 8 Sept 1993 | 1 Jul 1996 | American | 85 years |
| Iain Gladstone Ross | Director | 2 Oct 1995 | 15 Dec 2000 | British | 71 years |
| Jaap Kampinga | Director | 14 Jul 1992 | 16 Oct 1992 | Dutch | 69 years |
| Jakob Kampinga | Director | 18 May 1998 | 31 Oct 1999 | Dutch | 69 years |
| Kieran Pius Murphy | Director | 14 Jul 2005 | 17 Jan 2007 | Irish | 62 years |
| Lee Fraser Coleman | Secretary | 17 Jan 2007 | 12 Oct 2007 | British | - |
| Martin Kleijwect | Director | 16 Oct 1992 | 1 Jul 1996 | Dutch | 70 years |
| Paul Stephen Oliver | Director | 1 Jul 2013 | 1 Jan 2015 | British | 47 years |
| Peter Frederick Burrell | Secretary | 13 Jul 2010 | 1 Jan 2015 | - | - |
| Peter John Shennan | Director | 14 Jul 2005 | 17 Jan 2007 | British | 75 years |
| Peter John Shennan | Secretary | 14 Jul 2005 | 17 Jan 2007 | British | - |
| Quentin George Paul Cooke | Secretary | 16 Nov 1993 | 25 Jun 1996 | British | - |
| Rajan Uppal | Director | 1 Jul 1996 | 11 Nov 1996 | British | 63 years |
| Rajan Uppal | Director | 12 Nov 1996 | 14 Jul 2005 | British | 63 years |
| Rajan Uppal | Secretary | 25 Jun 1996 | 25 Jun 1996 | British | - |
| Rajan Uppal | Secretary | 25 Jun 1996 | 30 Jul 1999 | British | - |
| Richard P Lyman | Director | 16 Oct 1992 | 9 Dec 1999 | American | 81 years |
| Susan Mary Ellis | Secretary | 14 Jul 1992 | 16 Oct 1992 | British | - |
| Terence Stanley Chadwick | Director | 31 Oct 1999 | 17 Jan 2007 | British | 75 years |
| Thomas Gale Davis | Director | 19 May 1993 | 26 Jan 1995 | American | 98 years |
| Thomas Stephen Vallance | Secretary | 16 Oct 1992 | 16 Nov 1993 | British | - |
| Tom Maher | Director | 26 Feb 2002 | 23 Aug 2002 | Irish | 59 years |
| Trevor Michael Phillips | Director | 1 Jul 2015 | 31 May 2017 | British | 64 years |
| Zoe Margaret Laura Codd | Secretary | 30 Jul 1999 | 19 Dec 2000 | British | - |