| Adam Howard Winton | Director | 1 Nov 1996 | 10 Dec 1999 | British | 65 years |
| Andrew David Strang | Director | 4 Aug 1991 | 4 Jul 2008 | British | 73 years |
| Campbell David Fleming | Director | 11 Dec 2009 | 29 Apr 2016 | Australian | 62 years |
| Christopher John Morrogh | Director | 9 Jan 2007 | 31 Dec 2020 | British | 63 years |
| Crispin John Henderson | Director | 12 Jun 2006 | 28 Feb 2013 | British | 78 years |
| Daniel Ward | Director | 1 Aug 1994 | 1 Nov 2007 | British | 67 years |
| David Charles Parsons | Director | 31 May 1994 | 28 Apr 1995 | British | 70 years |
| David Gasparro | Director | 12 Jun 2006 | 31 Jan 2009 | British | 61 years |
| David John Price | Director | 24 Jan 2006 | 19 Mar 2008 | British | 66 years |
| Dennis John Noel Bowtle | Director | 4 Aug 1991 | 15 Oct 1993 | British | 89 years |
| Donald Armstrong Jordison | Director | 2 Jan 1992 | 19 Feb 2018 | British | 66 years |
| James Mark Alexander Rigg | Director | 1 Dec 1999 | 27 Oct 2025 | British | 58 years |
| Jeremy Alexander James Fraser Burnett Rae | Director | 20 Feb 1995 | 6 Mar 1997 | British | 73 years |
| Jeremy Alexander James Fraser Burnett Rae | Secretary | 29 Apr 1994 | 6 Mar 1997 | British | - |
| John Marcus Willcock | Director | 25 Jul 2002 | 31 Dec 2020 | British | 63 years |
| Kenneth William Ballard Inglis | Director | 4 Aug 1991 | 29 Apr 1994 | British | 83 years |
| Leslie John Hart | Director | 5 Dec 1994 | 25 Jul 2000 | British | 78 years |
| Nicholas Alan Pearce | Director | 31 May 1994 | 30 Nov 2005 | British | 79 years |
| Nicholas John Kirk | Director | 29 Jan 1996 | 31 Mar 1999 | British | 73 years |
| Paul Victor Sant Manduca | Director | 21 May 1994 | 22 Feb 1999 | British | 75 years |
| Peter Charles Howe | Secretary | 4 Aug 1991 | 29 Apr 1994 | British | - |
| Phillip Michael Brown | Director | 12 Dec 1991 | 5 Sept 1997 | British | 66 years |
| Robert Peter Flavelle | Director | 24 Jan 2006 | 6 Jun 2008 | British | 70 years |
| Robert Walter Allen | Director | 31 May 1994 | 24 Jul 2002 | British | 73 years |
| Robin Douglas Clark | Director | 6 Mar 1997 | 22 May 1998 | British | 70 years |
| Roger Charles Clarke | Director | 1 Sept 1994 | 30 Sept 1996 | British | 71 years |
| Roger Charles Townsend | Director | 31 May 1994 | 15 Dec 1995 | British | 78 years |
| Simon Howard Davies | Director | 24 Feb 1999 | 30 Jun 2012 | British | 67 years |
| Stephen Lauder | Director | 9 Dec 2020 | 31 Mar 2025 | British | 48 years |
| Thomas William Challenor | Director | 24 Feb 1999 | 12 Jun 2006 | British | 71 years |
| Timothy Nicholas Gillbanks | Director | 23 May 2016 | 31 Mar 2017 | British | 60 years |
| William David Lowndes | Director | 17 Nov 1998 | 12 Jun 2006 | British | 63 years |