| Angela Mary Cunningham | Secretary | 22 Jun 2001 | 4 Oct 2004 | British | - |
| Angela Mary Cunningham | Secretary | 1 Sept 2006 | 21 Jun 2007 | British | - |
| Annabel Susan Graham | Secretary | 19 Oct 2005 | 1 Sept 2006 | British | - |
| Celia Rosalind Gough | Director | 25 Oct 2016 | 31 Oct 2025 | British | 51 years |
| Celia Rosalind Gough | Secretary | 26 Nov 2014 | 31 Oct 2025 | - | - |
| Christopher William Boyd | Secretary | 10 Dec 1998 | 29 Oct 1999 | British | - |
| Colin Campbell | Director | 19 Oct 2005 | 21 Jun 2007 | British | 60 years |
| David Andrew Gerrard | Director | 25 Oct 2016 | 30 Jun 2021 | British | 62 years |
| David Mark Thompson | Director | 30 Jul 2014 | 1 Mar 2017 | British | 57 years |
| David Russell Clements | Director | 21 Feb 2001 | 24 Apr 2002 | British | 83 years |
| Davies Burns Elder | Director | 21 Feb 2001 | 31 Oct 2001 | British | 81 years |
| Deborah Jude Nolan | Secretary | 5 Sept 2013 | 26 Nov 2014 | - | - |
| Frederic Georges Michel Pelege | Director | 21 Jan 2008 | 13 Jan 2012 | French | 58 years |
| Heidi Elizabeth Bromley | Secretary | 21 Feb 2001 | 21 Jun 2001 | British | - |
| Ian John Isaac | Director | 4 Oct 2004 | 1 Mar 2005 | British | 63 years |
| Ivor Douglas Catto | Director | 23 Apr 2003 | 1 Oct 2004 | British | 60 years |
| James Mcdonnell | Director | 10 Dec 1998 | 29 Oct 1999 | British | 79 years |
| James Mcdonnell | Secretary | 29 Oct 1999 | 9 Nov 1999 | British | - |
| James Mcdonnell | Secretary | 1 Jan 2001 | 21 Feb 2001 | British | - |
| Jeffrey Winterbottom | Director | 21 Jun 2007 | 9 Jan 2014 | British | 77 years |
| John Graham Cole | Director | 16 Oct 2000 | 21 Feb 2001 | British | 71 years |
| Jonathan Michael Sweetman | Director | 21 Feb 2001 | 16 Jul 2001 | British | 75 years |
| Keith Eddington | Director | 29 Oct 1999 | 16 Oct 2000 | British | 80 years |
| Kevin Anthony Hurst | Director | 25 Oct 2016 | 31 Dec 2021 | British | 68 years |
| Kevin Lloyd Korengold | Director | 23 Feb 2012 | 30 Jun 2014 | British | 58 years |
| Lisa Philomena Mccormack | Director | 4 Oct 2004 | 25 Apr 2006 | British | 59 years |
| Luis Pais Correia | Director | 21 Jun 2007 | 21 Jan 2008 | Portuguese | 63 years |
| Marina Louise Thomas | Secretary | 4 Oct 2004 | 19 Oct 2005 | British | - |
| Mark Christopher Moss | Director | 2 Feb 2004 | 21 Jun 2007 | British | 67 years |
| Martin John Holt | Director | 21 Jun 2007 | 18 Aug 2009 | British | 61 years |
| Michael Moseling | Director | 24 Apr 2002 | 4 Oct 2004 | British | 79 years |
| Nigel David Wilson | Director | 29 Oct 1999 | 21 Feb 2001 | British | 70 years |
| Nigel Pearce | Director | 1 Nov 2001 | 2 Feb 2004 | British | 75 years |
| Noreen Ann Wright | Secretary | 9 Nov 1999 | 31 Dec 2000 | British | - |
| Patrick Richard Gilroy | Director | 15 Aug 2013 | 31 Jul 2016 | Irish | 55 years |
| Paul Barry Stevens | Director | 18 Aug 2009 | 2 Sept 2013 | British | 60 years |
| Paul Barry Stevens | Secretary | 21 Jun 2007 | 2 Sept 2013 | British | - |
| Peter Charles Bryan | Director | 25 Apr 2006 | 21 Jun 2007 | British | 62 years |
| Peter Hugh Nelson | Director | 24 Apr 2002 | 17 Apr 2003 | British | 82 years |
| Peter James Gerald Baillie | Director | 29 Oct 1999 | 16 Oct 2000 | British | 64 years |
| Richard Harry Cuthbert | Director | 21 Feb 2001 | 18 Mar 2002 | British | 73 years |
| Richard Mark Priestman | Director | 8 Mar 2001 | 4 Oct 2004 | British | 70 years |
| Richard Michael Bent | Director | 25 Sept 2012 | 4 Sept 2013 | British | 64 years |
| Sinead Isobel Patton | Director | 1 Oct 2013 | 1 Feb 2017 | Irish | 51 years |
| Stephen Booth | Director | 16 Oct 2000 | 21 Feb 2001 | British | 67 years |
| Timothy William John Longstaff | Director | 1 Oct 2004 | 21 Jun 2007 | British | 55 years |
| Tracy Jayne Knipe | Director | 21 Jul 2021 | 11 Oct 2024 | British | 58 years |