| Christopher Adam | Director | 1 Sept 1992 | 31 Jan 1993 | British | 85 years |
| Ernest Mario | Director | 1 Sept 1992 | 11 May 1993 | American | 87 years |
| Francis Joseph Pinto | Director | 1 Sept 1992 | 31 Jan 1993 | Indian | 83 years |
| Franz Bernhard Humer | Director | 1 Sept 1992 | 2 Feb 1993 | Swiss | 79 years |
| Geoffrey Potter | Director | 1 Sept 1992 | 31 Jan 1993 | British | 76 years |
| Goran Albert Torstensson Ando | Director | 1 Sept 1992 | 31 Jan 1993 | Swedish | 76 years |
| Graham Joseph Blaker | Director | 1 Sept 1992 | 31 Jan 1993 | British | 79 years |
| Iain James Mackay | Director | 1 May 2019 | 1 May 2023 | British | 64 years |
| James Clifford Youmans | Director | 1 Sept 1992 | 31 Jan 1993 | American | 78 years |
| James Michael Thomas Cochrane | Director | 6 Sept 1995 | 31 Jan 2001 | British | 81 years |
| Jeremy Alan Watkin Strachan | Director | 1 Sept 1992 | 31 Dec 2000 | British | 81 years |
| John David Coombe | Director | 1 Sept 1992 | 31 Mar 2005 | British | 80 years |
| John Mulock Hignett | Director | 1 Feb 1993 | 12 May 1993 | British | 91 years |
| Jonathan Laurence Patrick Hyde | Secretary | 1 Sept 1992 | 31 Jan 1993 | British | - |
| Julian Spenser Heslop | Director | 31 Jan 2001 | 31 Mar 2011 | British | 71 years |
| Julie Belita Brown | Director | 1 May 2023 | 19 Jul 2025 | British | 63 years |
| Nicholas Guy Usher Morris | Secretary | 1 Feb 1993 | 1 Feb 1996 | British | - |
| Paul Frederick Blackburn | Director | 21 Jul 2005 | 1 Mar 2016 | British | 71 years |
| Paul Girolami | Director | 12 May 1993 | 11 Oct 1994 | British | 99 years |
| Paul Martin Williams | Director | 1 Sept 1992 | 31 Jan 1993 | British | 79 years |
| Richard Brook Sykes | Director | 12 May 1993 | 20 May 2002 | British | 83 years |
| Richard James Stephens | Secretary | 21 Jul 2003 | 5 Mar 2007 | British | - |
| Sean Patrick Lance | Director | 11 Oct 1994 | 7 Nov 1997 | Irish | 78 years |
| Simon Michael Bicknell | Secretary | 31 Jan 2001 | 28 Feb 2011 | British | - |
| Simon Paul Dingemans | Director | 1 Apr 2011 | 1 May 2019 | British | 62 years |
| Stanley Clive Challoner | Director | 1 Sept 1992 | 31 Jan 1993 | British | 88 years |
| Stephen John Cowden | Secretary | 1 Feb 1996 | 31 Jan 2001 | British | - |
| Terence Eaves | Director | 1 Sept 1992 | 31 Jan 1993 | British | 79 years |