| Alan Hagdrup | Director | 29 May 1991 | 11 Apr 2002 | British | 94 years |
| Alan James Murray | Director | 31 Mar 2003 | 4 Jun 2025 | British | 73 years |
| Andrew Christopher Bolter | Director | 28 May 2003 | 28 May 2003 | British | 56 years |
| Andrew James Harrower Dougal | Director | 7 May 1996 | 14 May 2002 | British | 75 years |
| Brian Aliol Hellings | Director | 29 May 1991 | 13 Nov 1996 | British | 90 years |
| Brian Robertson Simister | Secretary | 6 Dec 2007 | 31 Dec 2010 | British | - |
| Christopher Douglas Collins | Director | 26 Feb 1997 | 31 Dec 2009 | British | 86 years |
| Derek Charles Bonham | Director | 29 May 1991 | 29 Aug 2001 | British | 83 years |
| Gemma Elizabeth Mary Nel | Director | 1 Mar 2023 | 4 Jun 2025 | British | 53 years |
| Graham Dransfield | Director | 6 Apr 1998 | 30 Jun 2008 | British | 75 years |
| Graham Dransfield | Director | 30 Jun 2008 | 30 Jun 2008 | British | 75 years |
| John Harmer Pattisson | Director | 29 May 1991 | 2 Apr 1996 | British | 95 years |
| Jonathan Giles Ashley Azis | Director | 2 Apr 1996 | 6 Apr 1998 | British | 69 years |
| Kenneth John Ludlam | Director | 11 Apr 2002 | 28 May 2003 | British | 83 years |
| Kenneth John Ludlam | Director | 28 May 2003 | 4 Jun 2025 | British | 83 years |
| Marc De Ruiter Boone | Director | 16 Dec 2010 | 4 Jun 2025 | American | 64 years |
| Martin Gibbeson Taylor | Director | 15 Nov 1995 | 31 Mar 2003 | British | 91 years |
| Paul Derek Tunnacliffe | Secretary | 1 Dec 1994 | 6 Dec 2007 | British | - |
| Paul Spencer | Director | 29 May 1991 | 15 Nov 1995 | British | 76 years |
| Peter John Turner | Director | 1 Mar 2008 | 9 Dec 2022 | British | 82 years |
| Roger Thomas Virley Tyson | Secretary | 11 Mar 2011 | 1 Apr 2016 | - | - |
| Yvette Monica Newbold | Secretary | 29 May 1991 | 1 Dec 1994 | British | - |