| Alan Robson | Director | 26 May 1994 | 23 Aug 2006 | British | 85 years |
| Andrew Patrick Kennedy | Director | 2 Oct 1998 | 24 Sept 2008 | British | 67 years |
| Anthony Frank Cotgreave | Director | 24 Jun 2005 | 30 Jun 2019 | British | 91 years |
| Anthony Stanley West | Director | 12 Oct 1994 | 31 Dec 2000 | British | 86 years |
| Charles Richard Browne Goldson | Director | 19 Aug 1998 | 15 Sept 2016 | British | 77 years |
| Christopher Thomas Hannon | Director | 12 May 2005 | 15 Sept 2016 | British | 66 years |
| Christopher Thomas Hannon | Director | 15 Sept 2016 | 6 Jul 2022 | British | 66 years |
| David Andrew Simpson | Director | 1 Dec 2010 | 20 Jan 2014 | British | 61 years |
| David Glyn Davies | Director | 21 Aug 1996 | 5 Feb 1997 | British | 62 years |
| David Harry Adams | Director | 25 May 1994 | 5 Apr 1997 | British | 87 years |
| David John Lynn Armstrong | Director | 26 May 1994 | 19 Aug 1998 | British | 79 years |
| David Tyson | Director | 6 Feb 2001 | 1 Oct 2021 | British | 62 years |
| Derek Fowler | Director | 26 May 1994 | 21 Aug 1996 | British | 97 years |
| Derek Scott | Director | 16 Jul 1997 | 31 Dec 2015 | British | 73 years |
| Duncan Roy Lazenby Brown | Director | 2 Dec 1999 | 18 Sept 2001 | British | 67 years |
| Frances Deborah Page | Director | 19 Sept 1998 | 18 Sept 2001 | British | 80 years |
| Frederick Ian Maroudas | Director | 23 Aug 2006 | 9 Jun 2009 | British | 63 years |
| Gerard Doherty | Director | 20 Jun 2018 | 3 Sept 2023 | British | 73 years |
| Hamish Bruce Nichol | Director | 16 Jul 1997 | 16 Nov 1999 | British | 81 years |
| Ian Wilson | Director | 26 Mar 2014 | 11 Mar 2016 | British | 60 years |
| Jenifer Anne Goodchild | Secretary | 20 Jun 2012 | 1 May 2017 | - | - |
| Jenifer Anne Goodchild | Secretary | 19 Sept 2018 | 5 Dec 2019 | - | - |
| Jenifer Anne Goodchild | Secretary | 17 Mar 2021 | 29 Jun 2022 | - | - |
| Jennifer Anne Page | Director | 26 May 1994 | 5 Mar 1996 | British | 82 years |
| Jeremy James Jerram | Director | 26 May 1994 | 21 Jan 2010 | British | 87 years |
| John Connor Hamilton | Director | 24 Sept 2008 | 1 Jul 2020 | British | 59 years |
| John David Chilman | Director | 23 May 2007 | 19 Mar 2019 | British | 59 years |
| John Hilton Mayfield | Director | 21 Aug 1996 | 31 Mar 2020 | British | 89 years |
| John Wall | Director | 23 Aug 2006 | 8 Nov 2006 | British | 80 years |
| Joseph Barnes | Director | 5 Mar 2004 | 23 Aug 2006 | British | 72 years |
| Kazimiera Teresa Kantor | Director | 26 May 1994 | 21 Aug 1996 | British | 77 years |
| Kenneth Walter Ball | Director | 21 Aug 1996 | 26 May 2005 | British | 99 years |
| Lisa Melanie Sunner | Secretary | 1 May 2017 | 19 Sept 2018 | - | - |
| Lisa Melanie Sunner | Secretary | 5 Dec 2019 | 17 Mar 2021 | - | - |
| Mark Engelbretson | Director | 6 Feb 2017 | 1 Dec 2023 | British | 51 years |
| Martin William Northard | Director | 12 Dec 2001 | 31 Mar 2005 | British | 71 years |
| Maurice Colston Holmes | Director | 26 May 1994 | 21 Aug 1996 | British | 91 years |
| Maurice Hudson Williams | Director | 26 May 1994 | 20 Jun 2007 | British | 101 years |
| Meliha Duymaz Oludipe | Director | 12 Mar 2016 | 1 Jul 2021 | British | 48 years |
| Michael Joseph Cash | Director | 10 Mar 2004 | 30 Sept 2015 | British | 66 years |
| Michael Lynch | Director | 23 Oct 2015 | 24 Jun 2021 | Irish | 64 years |
| Michael Peter Jones | Director | 21 Aug 1996 | 14 Aug 2002 | British | 63 years |
| Michael Vivian Posner | Director | 26 May 1994 | 19 Jun 1996 | British | 95 years |
| Michael Vivian Posner | Director | 19 Jun 1996 | 19 Aug 1998 | British | 95 years |
| Norman Neill Broadhurst | Director | 26 May 1994 | 20 Oct 1999 | British | 85 years |
| Paul John Joseph Radcliffe | Director | 21 Aug 1996 | 2 Sept 1998 | British | 77 years |
| Peter Anthony Murray | Director | 9 Feb 2000 | 24 Sept 2008 | British | 84 years |
| Peter Edward Duff | Director | 21 Jul 2009 | 8 Oct 2010 | British | 56 years |
| Peter Graham Turner | Director | 12 Dec 2001 | 11 Dec 2003 | British | 71 years |
| Philip William White | Director | 26 May 1994 | 25 Aug 2004 | British | 79 years |
| Ralph Anthony Porter | Director | 25 May 1994 | 26 May 1994 | British | 95 years |
| Robert Crow | Director | 6 Jun 2002 | 3 Dec 2003 | British | 65 years |
| Russell Andrew John Mears | Director | 16 Jul 2010 | 15 Sept 2016 | British | 58 years |
| Sandra Jenner | Director | 14 Aug 2002 | 9 Jan 2003 | British | 72 years |
| Stephen Paul Richards | Director | 26 May 1994 | 20 Jun 2018 | British | 79 years |
| Susan Fairclough | Secretary | 25 May 1994 | 20 Jun 2012 | British | - |
| Thomas Francis Joseph Little | Director | 16 Apr 2003 | 28 Feb 2007 | British | 82 years |
| Vernon George Hince | Director | 26 May 1994 | 19 Apr 2002 | British | 86 years |
| William Russell | Director | 26 May 1994 | 12 Oct 1994 | British | 89 years |