| Adrian Francis John Atkinson | Director | 2 Jan 2001 | 29 Feb 2008 | British | 58 years |
| Adrian Francis John Atkinson | Director | 14 Dec 2010 | 11 Jan 2012 | British | 58 years |
| Alan Cowan | Director | 22 Nov 2018 | 14 Jun 2019 | British | 53 years |
| David Clive Thurlow | Director | 2 Jan 2001 | 25 Nov 2015 | British | 61 years |
| Francis Richard Atkinson | Director | 8 Apr 2010 | 14 Dec 2010 | British | 91 years |
| Ian Thomas Mattioli | Director | 29 Jul 2013 | 25 Nov 2015 | British | 64 years |
| Ida Mary Julia Wakelam | Director | 13 Dec 2000 | 2 Jan 2001 | British | 74 years |
| James Thomas Bolton | Director | 2 Jan 2001 | 25 Nov 2015 | British | 59 years |
| James Thomas Bolton | Secretary | 1 Nov 2002 | 25 Nov 2015 | British | - |
| Katherine Anne Gibson | Secretary | 2 Jan 2001 | 30 Oct 2002 | British | - |
| Mark Antony Smith | Director | 29 Jul 2013 | 22 Nov 2018 | British | 56 years |
| Martin David Evans | Secretary | 13 Dec 2000 | 2 Jan 2001 | British | - |
| Nathan James Mclean Imlach | Director | 29 Jul 2013 | 1 Nov 2019 | British | 57 years |
| Simon John Gibson | Director | 31 Mar 2004 | 25 Nov 2015 | British | 60 years |