| Allan Bridgewater | Director | 9 Jan 1997 | 30 Jun 1998 | British | 90 years |
| Andrew Christopher Russell | Director | 27 Jan 2015 | 28 Mar 2018 | British | 47 years |
| Andrew Maitland Dinwiddie | Director | 20 Sept 2025 | 6 Oct 2025 | British | 42 years |
| Angela Jane Darlington | Director | 7 Feb 2020 | 30 Apr 2021 | British | 58 years |
| Anthony Paul David Larkin | Director | 9 Jun 2023 | 19 Sept 2025 | British | 45 years |
| Bernard Andrew Curran | Director | 8 Aug 2011 | 18 Dec 2012 | British | 58 years |
| Cathryn Elizabeth Riley | Director | 12 Feb 2007 | 31 Dec 2008 | British | 64 years |
| Charles Andrew Anderson | Director | 24 Jun 1999 | 24 Sept 2001 | British | 71 years |
| Cheryl Margaret Agius | Director | 11 Jan 2022 | 16 May 2024 | Irish | 55 years |
| Chetan Singh | Director | 26 Jul 2021 | 31 May 2022 | British | 50 years |
| Christopher Freeman | Director | 9 Dec 1999 | 9 Oct 2000 | British | 70 years |
| Clive Grant Bolton | Director | 17 Jan 2011 | 5 May 2017 | British | 65 years |
| Craig Anthony Colton | Director | 25 Jan 2013 | 31 Jan 2016 | British | 58 years |
| Daren Roy Carter | Director | 20 Mar 2006 | 22 Dec 2006 | British | 61 years |
| David Barclay Barral | Director | 10 Jun 2009 | 26 Jan 2011 | British | 64 years |
| David Ernest Parker | Director | 29 Jun 1998 | 28 Oct 1998 | British | 86 years |
| David Ernest Parker | Secretary | 1 Jul 1998 | 29 Sept 2000 | British | - |
| David Martin Dalton-brown | Director | 28 Oct 1998 | 9 Dec 1999 | British | 67 years |
| Douglas Allan Brown | Director | 18 May 2021 | 30 Mar 2022 | British | 55 years |
| Edward Graham Jones | Secretary | 9 Jan 1997 | 30 Jun 1998 | British | - |
| Glen William James | Director | 2 Dec 1996 | 9 Jan 1997 | British | 74 years |
| Graham Stirling Boffey | Director | 5 Aug 2010 | 5 Dec 2012 | British | 63 years |
| Gregory Robert Neilson | Director | 7 Jan 2020 | 17 Jun 2021 | British | 41 years |
| Howard Roger Kew | Director | 10 May 2002 | 13 Feb 2007 | British | 66 years |
| John Francis Waring Westby | Director | 28 Oct 1998 | 9 Dec 1999 | British | 67 years |
| John Francis Westby | Director | 15 Dec 2000 | 13 Feb 2007 | British | 67 years |
| John Robert Lister | Director | 9 Jul 2009 | 29 Nov 2010 | British | 68 years |
| Jonathan Andrew David Marks | Director | 2 Dec 1996 | 9 Jan 1997 | British | 61 years |
| Jonathan Andrew David Marks | Secretary | 2 Dec 1996 | 9 Jan 1997 | British | - |
| Judith Nicol | Director | 22 Nov 2010 | 8 Mar 2018 | British | 59 years |
| Julian Ray Woodford | Director | 1 Sept 2011 | 20 Jun 2013 | British | 63 years |
| Keith Michael Perkins | Director | 9 Dec 1999 | 19 Mar 2001 | British | 62 years |
| Keith William Abercromby | Director | 28 Nov 2005 | 14 Sept 2006 | British | 62 years |
| Lindsey Claire Rix | Director | 4 Sept 2017 | 29 Apr 2020 | British | 46 years |
| Madoc Tipple | Director | 1 Dec 2021 | 9 Jun 2023 | British | 51 years |
| Mark Peter Kelly | Director | 17 Nov 1999 | 18 Dec 2006 | British | 69 years |
| Mark Steven Hodges | Director | 12 Feb 2007 | 30 Apr 2010 | British | 61 years |
| Martin John Muir | Director | 11 Dec 2017 | 24 Mar 2020 | British | 59 years |
| Mary Elizabeth Ward | Director | 29 Jun 1998 | 28 Oct 1998 | British | 63 years |
| Matthew Ross Mcgill | Director | 28 Oct 2021 | 27 Apr 2025 | British | 51 years |
| Michael Nicholas Biggs | Director | 28 Oct 1998 | 1 Sept 2000 | British | 74 years |
| Michael Norris Urmston | Director | 24 Sept 2001 | 28 Nov 2005 | British | 77 years |
| Michael Terence Kirsch | Director | 9 Dec 1999 | 14 Sept 2006 | British | 65 years |
| Michelle Chaya-stewart Drage | Director | 10 Jan 2011 | 10 Jan 2011 | British | 70 years |
| Michelle Drage | Director | 10 Jan 2011 | 29 Jul 2011 | British | 64 years |
| Nicolaos Nicandrou | Director | 30 Nov 2006 | 27 Apr 2009 | British | 61 years |
| Patrick John Neville | Director | 11 Nov 2010 | 1 Sept 2011 | British | 66 years |
| Peter Thomas Johnson | Director | 15 Dec 2000 | 30 Jun 2001 | British | 72 years |
| Philip Gordon Scott | Director | 9 Dec 1999 | 15 Dec 2000 | British | 72 years |
| Richard John Harvey | Director | 9 Jan 1997 | 30 Jun 1998 | British | 76 years |
| Russell John Hughes | Director | 6 May 2004 | 13 Feb 2007 | British | 63 years |
| Sarah Louise Phillips | Director | 17 Jan 2013 | 24 Jul 2013 | British | 51 years |
| Simon Roger Marsden | Director | 18 Dec 2012 | 6 Jan 2020 | British | 53 years |
| Stephen James Hayes | Director | 20 Jul 2018 | 21 Feb 2022 | British | 51 years |
| Stuart Edmund Robinson | Director | 28 Mar 2018 | 30 Nov 2021 | British | 54 years |
| Timothy Kevin Madigan | Director | 28 Oct 1998 | 9 Dec 1999 | Irish | 58 years |
| Toby Emil Strauss | Director | 11 Feb 2009 | 26 Jan 2011 | British | 67 years |