| Anthony Ellyah Bodie | Director | 28 Jun 1993 | 21 May 1997 | British | 87 years |
| Bradley David Cassels | Director | 8 Feb 2016 | 29 Sept 2017 | British | 48 years |
| Brian Sidney Preston Dowling | Director | 1 Mar 1991 | 21 May 1993 | British | 76 years |
| Bruce Baxter Cheer | Director | 1 Mar 1991 | 31 Mar 1995 | British | 66 years |
| Bryan Richard Burletson | Director | 1 Mar 1991 | 1 Jul 1991 | British | 85 years |
| Charles Julian Barwick | Director | 26 May 1998 | 7 Sept 2016 | British | 73 years |
| Graham Prothero | Director | 6 Oct 2010 | 31 Jan 2013 | British | 65 years |
| Helen Maria Ratsey | Secretary | 1 Mar 2011 | 1 Sept 2014 | British | - |
| James Simon Hesketh | Director | 29 Jan 2016 | 30 Jul 2019 | British | 54 years |
| Marcus Owen Shepherd | Secretary | 1 Sept 2014 | 5 Jan 2015 | - | - |
| Martin John Brayshaw | Director | 31 Aug 1992 | 30 Apr 1993 | British | 71 years |
| Martin John Brayshaw | Secretary | 31 Aug 1992 | 30 Apr 1993 | British | - |
| Martin Richard Landau | Director | 18 Dec 1997 | 24 Dec 1997 | British | 89 years |
| Michael Henry Marx | Director | 1 Sept 1994 | 29 Feb 2016 | British | 79 years |
| Peter Peregrine Simpson Gee | Director | 31 Aug 1992 | 30 Apr 1993 | British | 78 years |
| Raymond Henry Pearse | Director | 13 Feb 1995 | 27 Jan 2010 | British | 80 years |
| Rita Mary Crompton | Secretary | 1 Mar 1991 | 31 Aug 1992 | British | - |
| Robert Thomas Ernest Ware | Director | 1 Mar 1991 | 31 Jul 1994 | British | 72 years |
| Stephen Alec Lanes | Secretary | 15 Nov 1993 | 19 Jan 2011 | British | - |
| Steven Mark Vaughan | Director | 1 May 1991 | 24 Jan 1995 | British | 68 years |
| Vivienne Teresa Chatterjee | Director | 1 May 1991 | 22 Oct 1993 | British | 79 years |