| Alan Elliott | Director | 31 May 1992 | 9 Feb 1995 | British | 81 years |
| Anil Shantilal Mehta | Director | 31 May 1992 | 31 Oct 1996 | Indian | 87 years |
| Anne Lucille Verrinder | Director | 29 Mar 2010 | 6 Jul 2017 | Uk | 54 years |
| Baldev Raj Arora | Director | 25 Jun 1998 | 4 Jul 2001 | Indian | 81 years |
| Ben John Osborn | Director | 29 Apr 2019 | 28 Feb 2022 | British | 48 years |
| Benjamin James Michael Holgate | Secretary | 7 Oct 2009 | 1 Feb 2010 | - | - |
| Benjamin James Michael Holgate | Director | 2 Oct 2001 | 5 Apr 2010 | British | 58 years |
| Bernard Canavan | Director | 31 May 1992 | 31 Jan 1994 | Canadian Citizen | 89 years |
| Bernard Poussot | Director | 15 Jul 2002 | 6 Oct 2008 | French | 73 years |
| Brian John Jackson | Director | 31 May 1992 | 28 Sept 2001 | British | 82 years |
| Carole Anne Johnson | Director | 1 Sept 2013 | 17 Mar 2017 | British | 55 years |
| Christopher Joseph Senner | Director | 24 Oct 2005 | 3 Oct 2007 | American | 58 years |
| Colin Bateman | Director | 31 May 1992 | 9 Feb 1995 | British | 72 years |
| Colin Malcolm Seller | Director | 3 Jul 2017 | 23 Sept 2019 | British | 62 years |
| Darren Noseworthy | Director | 24 Jul 2015 | 9 Jan 2017 | Canadian | 55 years |
| David Gower Bevan | Director | 4 Nov 2009 | 19 Apr 2013 | British | 58 years |
| David Palmer Gillen | Director | 3 Aug 2005 | 30 Mar 2007 | British | 57 years |
| David Roblin | Director | 4 Nov 2009 | 9 Aug 2010 | United Kingdom | 59 years |
| Denise Jean Harnett | Director | 26 Apr 2018 | 1 May 2024 | British | 61 years |
| Dennis Selwyn Segal | Director | 31 May 1992 | 9 Feb 1995 | British | 87 years |
| Gregory Morris Michael | Director | 2 Oct 2001 | 17 Aug 2005 | British | 71 years |
| Hendrikus Hermannus Nordkamp | Director | 25 Feb 2015 | 15 May 2019 | Dutch | 56 years |
| Ian Eric Franklin | Director | 4 Nov 2009 | 9 Feb 2021 | British | 60 years |
| Jacqueline Ann Mount | Director | 24 Feb 2012 | 31 May 2022 | British | 62 years |
| Jacqueline Ann Mount | Secretary | 24 Feb 2012 | 21 Jan 2021 | British | - |
| James Desmond Parker | Director | 3 Jun 1994 | 5 Jun 1995 | British | 70 years |
| James Frederick Neville | Director | 25 Jan 2008 | 29 Jul 2011 | British | 72 years |
| John Rogers Stafford | Director | 31 May 1992 | 21 Mar 2002 | American | 88 years |
| Jonathan Charles Emms | Director | 1 Jan 2012 | 31 Jan 2015 | British | 62 years |
| Jonathan Tucker | Director | 21 Jul 2011 | 31 May 2013 | British | 60 years |
| Kevin James | Director | 11 Mar 2002 | 15 Nov 2005 | British | 70 years |
| Liam Francis Mcevoy | Director | 3 Aug 2005 | 8 Feb 2008 | British | 82 years |
| Liam Francis Mcevoy | Secretary | 2 Oct 2001 | 30 Sept 2009 | British | - |
| Louis Philip Jones | Director | 21 Jul 2010 | 29 Feb 2012 | Uk | 61 years |
| Neil Appleton | Director | 31 May 1992 | 31 Dec 1993 | British | 95 years |
| Neil Sisak | Director | 1 Oct 2007 | 19 Feb 2010 | Other | 54 years |
| Palle Michael Christensen | Director | 14 Nov 2007 | 25 Feb 2010 | Danish | 66 years |
| Paul Anthony Reacher | Director | 31 May 1992 | 2 Oct 2001 | British | 70 years |
| Paul Anthony Reacher | Secretary | 31 May 1992 | 2 Oct 2001 | British | - |
| Peter James Tart | Director | 31 May 1992 | 9 Feb 1995 | British | 84 years |
| Rangaswamy Iyer | Director | 4 Jul 2001 | 26 Oct 2009 | Indian | 72 years |
| Richard Neville Blackburn | Director | 4 Nov 2009 | 1 Jan 2012 | United Kingdom | 58 years |
| Robert Michael Day | Director | 4 Nov 2009 | 11 Oct 2012 | United Kingdom | 55 years |
| Robert Noel Power | Director | 14 Mar 1994 | 8 Feb 2008 | American | 69 years |
| Roger Llewellyn Smith | Director | 10 Oct 2019 | 25 Apr 2025 | British | 59 years |
| Ruth Amy Coles | Director | 27 Apr 2011 | 24 Jul 2015 | British | 51 years |
| Ruth Mitchell Mckernan | Director | 24 Sept 2010 | 10 Apr 2015 | Uk | 67 years |
| Stephen Edward King | Director | 31 May 1992 | 9 Feb 1995 | British | 84 years |
| Stephen John Higgins | Director | 19 Oct 2005 | 25 Oct 2007 | British | 67 years |
| Steven Michael Poulton | Director | 4 Nov 2009 | 7 Jan 2013 | United Kingdom | 67 years |
| Sukhdave Singh Aujla | Director | 9 Jun 2017 | 3 Sept 2021 | British | 50 years |
| Susan Jean Wallcraft | Director | 4 Nov 2009 | 6 Apr 2011 | United Kingdom | 59 years |
| Susan Pernille Knight | Director | 22 Feb 2011 | 3 May 2012 | British | 60 years |
| Susan Reinow | Director | 10 Mar 2022 | 8 Oct 2024 | American | 46 years |
| Ulf Arne Wiinberg | Director | 14 Dec 2005 | 2 May 2008 | Danish | 67 years |
| Ulf Arne Wiinberg | Director | 26 Aug 1997 | 11 Mar 2002 | Danish | 67 years |
| Vignesh Rajah | Director | 25 Jan 2008 | 12 Feb 2010 | British | 58 years |
| Vivian John Phillips | Director | 31 May 1992 | 30 Jul 1993 | British | 78 years |