| Adrian Shooter | Director | 10 Jan 1995 | 19 Dec 2011 | British | 78 years |
| Alan Riley | Director | 15 Jul 2019 | 31 May 2020 | British | 45 years |
| Alexander Mckenzie Turner | Director | 21 Jul 1996 | 9 Mar 1999 | British | 77 years |
| Alexis James Scott | Director | 3 Mar 2017 | 15 Jul 2019 | British | 43 years |
| Amanda Furlong | Director | 1 Jan 2012 | 3 Dec 2020 | British | 51 years |
| Andrew Christopher Munden | Director | 23 Jul 2012 | 2 Mar 2017 | British | 63 years |
| Andrew Ian Hamilton | Director | 31 May 2001 | 6 Jan 2006 | British | 58 years |
| Andrew Russell Camp | Director | 30 Aug 2023 | 12 Nov 2024 | British | 67 years |
| Anthony Douglas Allen | Director | 28 Mar 1995 | 26 Aug 2012 | British | 77 years |
| Catherine Edwina Proctor | Director | 31 May 2001 | 31 Aug 2007 | British | 57 years |
| Catriona Margaret Marjoribanks | Director | 24 Mar 2009 | 30 Sept 2013 | British | 54 years |
| Christopher Derek Dyne Burchell | Director | 10 Aug 2016 | 9 Oct 2020 | British | 53 years |
| David James Penney | Director | 1 Nov 2013 | 31 Dec 2019 | British | 51 years |
| Derek William Featherstone | Secretary | 9 Mar 1999 | 1 Nov 1999 | British | - |
| Duncan Thomas Rimmer | Director | 21 May 2012 | 4 Oct 2016 | British | 54 years |
| Eleni Jordan | Director | 17 Jan 2019 | 25 Aug 2023 | British | 52 years |
| Euan Alexander Robert Cameron | Director | 13 Feb 1995 | 21 Jul 1996 | British | 73 years |
| Gavin Marc Panter | Director | 19 Jul 2017 | 25 Jan 2019 | British | 54 years |
| Graham Peter Cross | Director | 3 Sept 2007 | 21 Jun 2016 | British | 51 years |
| Ian George Walters | Director | 31 May 2001 | 6 Dec 2004 | British | 57 years |
| Ian Joseph Wells | Director | 30 Jun 2000 | 30 Dec 2003 | British | 75 years |
| Ian Mark Hyde | Director | 2 Jul 2020 | 2 Aug 2023 | British | 56 years |
| Ian Stewart Baxter | Director | 7 Dec 2009 | 8 Aug 2012 | British | 68 years |
| Jennifer Payne | Director | 23 Jul 2012 | 19 Jul 2017 | British | 58 years |
| John Graeme Nelson | Director | 10 Jan 1995 | 21 Jul 1996 | British | 79 years |
| Justin John Baines | Director | 5 Sept 2016 | 19 Jul 2017 | British | 57 years |
| Kathryn Louise Franklin | Director | 10 Oct 2005 | 27 Jul 2006 | English | 69 years |
| Keith Eric Arthur Doughty | Director | 12 Jan 2009 | 23 Aug 2011 | British | 59 years |
| Lorna Edwards | Secretary | 1 Apr 2014 | 12 Jun 2020 | - | - |
| Maria Francesca Earl | Director | 29 Jun 2019 | 29 Jun 2019 | British | 64 years |
| Maria Francesca Earl | Director | 29 Jul 2019 | 16 Jan 2023 | British | 64 years |
| Mark Andrew Beckett | Secretary | 21 Jun 1996 | 9 Mar 1999 | British | - |
| Mark Beckett | Director | 9 Mar 1999 | 16 Oct 2006 | British | 59 years |
| Mark Charles Hugh Orkell Alexander | Director | 15 Mar 2004 | 27 Jul 2006 | British | 68 years |
| Mark Francis Goodall | Director | 1 Jun 2020 | 23 Jan 2023 | British | 46 years |
| Mark Robert Orsman | Director | 31 May 2001 | 1 Nov 2002 | British | 65 years |
| Mary Elisabeth Courtney Hewitt | Director | 17 Oct 2017 | 5 Oct 2020 | British | 47 years |
| Matthew James Prosser | Director | 21 Jun 2016 | 4 Jul 2019 | British | 54 years |
| Michael David Bagshaw | Director | 31 Aug 2003 | 24 May 2005 | British | 53 years |
| Owen Ernest Edgington | Director | 21 Jul 1996 | 9 Mar 1999 | British | 80 years |
| Peter Geoffrey Shell | Secretary | 12 Apr 2002 | 23 Mar 2007 | British | - |
| Peter Graham Hewett | Nominee Secretary | 10 Jan 1995 | 21 Jul 1996 | British | - |
| Rachel Helen Baldwin | Director | 25 Apr 2014 | 3 Feb 2015 | British | 50 years |
| Rebecca Ward | Director | 31 Jan 2013 | 31 Aug 2019 | British | 55 years |
| Richard Maclennan | Director | 7 Mar 2005 | 28 Nov 2008 | British | 64 years |
| Robert William Brighouse | Director | 16 May 2011 | 18 Dec 2015 | British | 69 years |
| Robert William Holland | Director | 1 Jan 2012 | 1 Jan 2013 | British | 76 years |
| Roger Keith Miller | Secretary | 1 Nov 1999 | 12 Apr 2002 | British | - |
| Roger Keith Miller | Secretary | 23 Mar 2007 | 31 Mar 2008 | British | - |
| Stephen John Murphy | Director | 8 Dec 2010 | 24 Mar 2014 | British | 57 years |
| Stephen John Murphy | Director | 31 May 2001 | 3 May 2004 | British | 57 years |
| Stuart Andrew Griffin | Director | 31 May 2001 | 28 Mar 2004 | British | 71 years |
| Thomas Mark Ableman | Director | 10 Sept 2009 | 10 Apr 2016 | British | 65 years |
| Timothy Martin Sayer | Director | 10 Oct 2006 | 6 Mar 2009 | British | 61 years |
| Vanessa Russell | Director | 30 Jan 2023 | 30 May 2025 | British | 38 years |
| William Giles Russell Davies | Director | 30 Jul 2003 | 15 Mar 2004 | British | 76 years |
| William Giles Russell Davies | Secretary | 31 Mar 2008 | 1 Apr 2014 | British | - |