| Christopher Simon Gage | Director | 1 Jan 2010 | 30 Jul 2010 | British | 69 years |
| David John Shingler | Director | 23 Feb 1994 | 31 Oct 1996 | British | 89 years |
| Derek Keith Brown | Director | 9 Nov 2001 | 30 Sept 2008 | British | 66 years |
| Evert Burgers | Director | 19 Sept 2012 | 26 Oct 2013 | Dutch | 66 years |
| Frank Patrick Sweeney | Director | 30 Nov 1991 | 6 Apr 1994 | British | 80 years |
| Jack Allen Mindenhall | Director | 30 Nov 1991 | 2 Mar 1994 | British | 81 years |
| Jack Allen Mindenhall | Director | 31 Oct 1996 | 31 Jan 2010 | British | 81 years |
| Michael Von Bartenwerffer | Director | 30 Nov 1991 | 11 Jun 1992 | German | 76 years |
| Patricia Margaret Hall | Secretary | 30 Nov 1991 | 27 Sept 1993 | British | - |
| Patricia Margaret Hall | Secretary | 21 Apr 1994 | 31 Oct 1996 | British | - |
| Paul Jonathan Riches | Director | 30 Nov 1991 | 3 Mar 1994 | British | 77 years |
| Paul Jonathan Riches | Director | 31 Oct 1996 | 31 Jan 2010 | British | 77 years |
| Peter Gijsbert Hendrik Van De Riet | Director | 31 Oct 1996 | 1 Apr 2001 | Dutch | 60 years |
| Peter White | Director | 23 Feb 1994 | 1 Nov 1996 | British | 77 years |
| Philippe Charbau | Director | 30 Jul 2010 | 19 Sept 2012 | French | 77 years |
| Richard Wachter | Director | 19 Sept 2012 | 29 Sept 2021 | German | 65 years |
| Robert Ritchie Simpson | Director | 30 Nov 1991 | 2 Mar 1994 | British | 88 years |
| Simon Nicholas Rous | Secretary | 27 Sept 1993 | 21 Apr 1994 | British | - |
| Stephen Alan Gent | Director | 24 Feb 2009 | 2 Jun 2009 | British | 53 years |
| Trevor James Ellis-callow | Director | 5 Jun 1997 | 7 Nov 2003 | British | 79 years |