| Alan Charles Fuller | Director | 31 Dec 1999 | 27 Feb 2002 | British | 68 years |
| Alan Charles Fuller | Secretary | 31 Dec 1999 | 27 Feb 2002 | British | - |
| Alan Leonard Whitnall | Secretary | 27 Feb 2002 | 29 May 2009 | British | - |
| Alex Paul Carter | Director | 1 Jan 1995 | 1 Feb 1999 | British | 67 years |
| Ann Heron Gloag | Director | 13 Dec 1993 | 20 Apr 1998 | British | 84 years |
| Anthony Geoffrey Cox | Director | 10 Dec 1993 | 24 Nov 1998 | British | 73 years |
| Arnold Mark Threapleton | Director | 18 Apr 2017 | 30 Jun 2020 | British | 72 years |
| Brian John Cox | Director | 1 Aug 2000 | 3 Jul 2002 | British | 79 years |
| Brian Souter | Director | 13 Dec 1993 | 23 Mar 1998 | British | 72 years |
| Bryony Chamberlain | Director | 30 Sept 2005 | 5 Jun 2006 | British | 51 years |
| Carla Lucy Stockton-jones | Director | 24 Feb 2020 | 3 Jul 2023 | British | 54 years |
| Christopher Graham Hilditch | Director | 7 Dec 1998 | 9 Jul 1999 | British | 70 years |
| Christopher Mark Venables | Director | 20 Jul 2018 | 1 Sept 2022 | British | 51 years |
| Christopher Sean Lee Coleman | Director | 2 Mar 2020 | 12 Apr 2021 | British | 56 years |
| Christopher Thomas Hemming | Secretary | 3 Aug 1991 | 31 Mar 1994 | British | - |
| Colin Brown | Director | 30 Dec 2004 | 31 May 2019 | British | 58 years |
| David Brian Worsell | Director | 3 Aug 1991 | 7 Jan 1999 | British | 76 years |
| Edward Leonard Hodgson | Director | 19 Feb 2016 | 13 Sept 2017 | British | 56 years |
| Elizabeth Burd | Director | 23 May 2014 | 19 Feb 2016 | British | 64 years |
| Gary James Nolan | Director | 2 May 2013 | 7 Apr 2017 | British | 70 years |
| Inglis Lyon | Director | 8 Jan 1999 | 8 Sept 2000 | British | 62 years |
| James David Ferdinand Freeman | Director | 1 Jun 2001 | 30 Sept 2005 | British | 70 years |
| Jeremy Robert Davison | Director | 28 Jan 1994 | 2 Jan 1996 | British | 69 years |
| Jeremy Robert Davison | Secretary | 31 Mar 1994 | 2 Jan 1996 | British | - |
| John Frederick Staite | Director | 1 Jan 1996 | 31 Dec 1999 | British | 78 years |
| John Frederick Staite | Secretary | 1 Jan 1996 | 31 Dec 1999 | British | - |
| Karen Rosaleen Robbins | Director | 1 Dec 2000 | 19 Apr 2002 | British | 57 years |
| Keith Robertson Cochrane | Director | 10 Dec 1993 | 1 Aug 2000 | British | 61 years |
| Leslie Brian Warneford | Director | 21 Jan 1999 | 26 Apr 2013 | British | 78 years |
| Mark Iorwedd Rhys-davies | Director | 3 Aug 1991 | 31 Mar 1994 | British | 76 years |
| Mark Richard Thomas | Director | 3 Aug 1991 | 10 Dec 1993 | British | 75 years |
| Martin Andrew Griffiths | Director | 1 Aug 2000 | 30 Dec 2004 | British | 60 years |
| Martin Sutton | Director | 11 Sept 2000 | 30 Sept 2005 | British | 72 years |
| Michael John Kinski | Director | 20 Apr 1998 | 30 Nov 1998 | British | 74 years |
| Michael John Vaux | Director | 31 Mar 2009 | 28 Dec 2016 | British | 55 years |
| Michael John Vaux | Secretary | 29 May 2009 | 30 Jul 2024 | British | - |
| Norrie Russell Thomas | Director | 3 Aug 1991 | 10 Dec 1993 | British | 74 years |
| Paul O'callaghan | Director | 13 Jun 2002 | 30 Dec 2004 | British | 67 years |
| Philip Howard Medlicott | Director | 20 Jul 2018 | 3 Feb 2020 | British | 64 years |
| Rachel Geliamassi | Director | 12 Apr 2021 | 1 Apr 2022 | British | 45 years |
| Robert Gervase Andrew | Director | 31 Mar 2009 | 28 Dec 2016 | British | 63 years |
| Robert Montgomery | Director | 31 Mar 2009 | 22 Mar 2017 | British | 74 years |
| Rupert Miles Cox | Director | 12 Apr 2021 | 31 Aug 2023 | British | 46 years |
| Samuel Derek Greer | Director | 10 Mar 2010 | 28 Dec 2016 | British | 58 years |
| Stephen John Burd | Director | 29 Apr 2009 | 20 Jul 2018 | British | 67 years |
| Stephen John Burd | Director | 20 Jul 2018 | 28 Nov 2018 | British | 67 years |
| William Barry Hinkley | Director | 30 Nov 1998 | 25 Jul 2000 | British | 77 years |
| William Hiron | Director | 3 Aug 1991 | 30 Apr 1994 | British | 63 years |