| Adrian Keith Dawson | Director | 4 Dec 1992 | 31 Aug 2000 | British | 83 years |
| Adrian Patrick White | Director | 30 Apr 2008 | 22 Jun 2012 | British | 59 years |
| Alexander Siu Kee Au | Director | 2 Jul 1998 | 30 Jul 1998 | British Citizen | 80 years |
| Allison Jane Currie | Secretary | 12 Mar 2012 | 6 Jul 2012 | - | - |
| Anthony Clifford Webb | Director | 4 Dec 1992 | 30 Jan 1998 | British | 88 years |
| Brendan Patrick Paul Blake | Director | 4 Dec 1992 | 16 Jan 2000 | British | 79 years |
| Christopher Sutton | Director | 1 Sept 2011 | 9 Jul 2015 | British | 68 years |
| Claude Kwasi Sarfo-agyare | Director | 21 Nov 2012 | 25 Jun 2018 | British | 57 years |
| David Dermot Hennessey | Secretary | 4 Sept 2016 | 8 Jan 2024 | - | - |
| David James Stanley Oldfield | Director | 19 Dec 2006 | 21 Nov 2012 | British | 64 years |
| David John Morgan | Director | 17 Sept 1998 | 31 Aug 2000 | British | 69 years |
| David Keith Potts | Director | 31 Aug 2000 | 28 Sept 2007 | British | 75 years |
| David Peter Brougham | Director | 4 Dec 1992 | 31 Dec 1997 | British | 86 years |
| David Stewart Gow | Director | 20 Jan 1995 | 21 Dec 2000 | British | 76 years |
| David Stewart Gow | Secretary | 4 Dec 1992 | 8 May 2000 | British | - |
| Deborah Ann Saunders | Secretary | 29 May 2001 | 6 Jan 2010 | Other | - |
| Eric Harrison Jostrom | Director | 12 May 1992 | 13 Oct 1992 | American | 84 years |
| Fred Clark Enlow | Director | 2 Jul 1998 | 31 Aug 2000 | American | 86 years |
| Gareth Richard Bullock | Director | 1 Jul 1996 | 30 Jul 1999 | British | 73 years |
| Gaynor Jill Welch | Director | 14 Oct 1992 | 23 Jan 1993 | British | 70 years |
| Gaynor Jill Welch | Secretary | 12 May 1992 | 3 Jul 1992 | British | - |
| Graham Roderick Walker | Director | 12 May 1992 | 23 Jan 1993 | British | 79 years |
| Ian Lawrence Sayers | Director | 14 Oct 1992 | 23 Jan 1993 | British | 64 years |
| Ian Lawrence Sayers | Secretary | 14 Oct 1992 | 4 Dec 1992 | British | - |
| Jakob Pfaudler | Director | 21 Nov 2012 | 10 Aug 2015 | Austrian | 54 years |
| Jane Earl | Secretary | 3 Jul 1992 | 14 Oct 1992 | British | - |
| Jeffrey Anthony Roberts | Director | 3 Mar 1997 | 14 Sept 2000 | British | 75 years |
| John Lewis Davies | Director | 4 Feb 1997 | 17 Dec 1999 | British | 77 years |
| John Lewis Davies | Director | 31 Aug 2000 | 18 Dec 2006 | British | 77 years |
| Lauren Pamma | Director | 1 May 2019 | 26 Nov 2020 | British | 48 years |
| Mark Andrew Stokes | Director | 16 Feb 2000 | 25 Feb 2000 | British | 64 years |
| Martin Heathcote Hayman | Director | 14 Oct 1992 | 23 Jan 1993 | British | 84 years |
| Michael Charles Hart | Director | 4 Dec 1992 | 31 Jan 1993 | South African | 75 years |
| Michael D'arcy Benson | Director | 12 May 1992 | 9 Oct 1992 | British | 83 years |
| Michael Peter Kilbee | Director | 31 Aug 2000 | 30 Apr 2008 | British | 79 years |
| Paul Anthony Barry | Director | 4 Dec 1992 | 8 Sept 2000 | British | 74 years |
| Paul Gittins | Secretary | 30 Jul 2013 | 4 Sept 2016 | - | - |
| Paul Gittins | Secretary | 18 Jan 2024 | 31 Jul 2024 | - | - |
| Paula Frain | Secretary | 8 May 2000 | 16 May 2001 | British | - |
| Peter Nigel Kenny | Director | 15 Sept 1994 | 1 Jul 1996 | British | 78 years |
| Philip John Stones | Director | 24 Jun 1997 | 11 Feb 2000 | British | 80 years |
| Philip Robert Grant | Director | 7 Sept 2015 | 4 Sept 2016 | British | 60 years |
| Philippe Marcel Etienne Paillart | Director | 2 Jan 1998 | 30 Jun 1998 | French | 75 years |
| Richard Andrew Hunter | Director | 17 Dec 1999 | 31 Aug 2000 | British | 76 years |
| Richard Andrew Jones | Director | 9 Jul 2015 | 28 Oct 2022 | British | 54 years |
| Stewart Edmund Davies | Director | 3 Mar 1997 | 13 Oct 2000 | British | 82 years |
| Timothy Mark Blackwell | Director | 28 Sept 2007 | 21 Jun 2011 | British | 57 years |
| William John Franklin | Director | 4 Dec 1992 | 20 Feb 1997 | British | 99 years |