| Aimie Nicole Chapple | Director | 1 Oct 2019 | 17 Oct 2022 | British | 57 years |
| Alexander Matthew Vallance | Director | 27 Nov 2017 | 31 May 2021 | British | 58 years |
| Andrew John Bowman | Director | 19 Jan 2017 | 21 Jun 2022 | British | 54 years |
| Andrew John Robert Mckinlay | Secretary | 31 Oct 2003 | 29 Jun 2011 | British | - |
| Andrew John Varley | Director | 10 Mar 1998 | 25 Nov 1999 | British | 76 years |
| Aparajita Ajit | Director | 12 Jul 2022 | 25 Jan 2023 | British | 50 years |
| Bob Bogoja Buiaroski | Director | 10 Jun 2014 | 20 Feb 2017 | Australian | 62 years |
| Christopher Charles Clements | Director | 12 Jul 2022 | 25 Jan 2023 | British | 44 years |
| Christopher Stroud | Director | 10 Jun 2014 | 30 Jun 2015 | British | 68 years |
| David Charles Jones | Director | 8 Jun 1992 | 17 May 2006 | British | 83 years |
| David John Fortey | Director | 8 Jun 1992 | 14 Jan 1994 | British | 81 years |
| David Wilson Keens | Director | 8 Jun 1992 | 29 Jun 2011 | British | 73 years |
| Elissa Leah Phillips | Secretary | 1 Feb 1993 | 23 Sept 2004 | British | - |
| Gordon Bruce Macleod | Director | 25 Nov 1999 | 30 Jun 2002 | British | 71 years |
| Ian Peter Campbell | Director | 8 Jun 1992 | 25 Nov 1999 | British | 65 years |
| Ian Peter Wheeler Kendall | Director | 8 Jun 1992 | 22 Apr 1994 | British | 79 years |
| John Percy William Strudwick | Director | 4 Feb 1994 | 26 Sept 1994 | British | 75 years |
| Kevin Andrew Francis | Director | 21 Oct 2019 | 15 Nov 2019 | British | 53 years |
| Kevin Andrew Francis | Director | 27 Sept 2021 | 3 May 2022 | British | 53 years |
| Mark Billingham | Director | 5 May 2022 | 21 Dec 2023 | British | 47 years |
| Mark Harvey Ayrton Astbury | Director | 25 Apr 1994 | 25 Nov 1999 | British | 66 years |
| Mark Jeffreys | Director | 12 Jul 2022 | 24 Mar 2023 | British | 56 years |
| Max Harding | Director | 12 Jul 2022 | 25 Jan 2023 | British | 51 years |
| Michael David Barnard | Director | 18 Oct 2012 | 9 May 2019 | British | 53 years |
| Nicolas Norman Bedford | Director | 17 Jan 2017 | 1 Feb 2018 | British | 67 years |
| Nicolas Norman Bedford | Director | 29 Jun 2011 | 4 May 2012 | British | 67 years |
| Peter Bailey | Secretary | 8 Jun 1992 | 2 Sept 1996 | British | - |
| Peter William Kent Webber | Director | 10 Mar 1998 | 25 Nov 1999 | British | 79 years |
| Peter William Kent Webber | Secretary | 10 Oct 1996 | 17 Dec 2001 | British | - |
| Philip Charles Braithwaite | Director | 31 May 2012 | 18 Oct 2012 | British | 75 years |
| Sally Johnson | Director | 12 Jul 2022 | 25 Jan 2023 | British | 47 years |
| Simon Adam Lord Wolfson Of Aspley Guise | Director | 1 Aug 2001 | 29 Jun 2011 | British | 59 years |
| Simon John Davies | Director | 31 May 2012 | 23 Jan 2015 | British | 58 years |
| Stephen Fairbank | Director | 8 Jun 1992 | 25 Nov 1999 | British | 78 years |
| Thomas Christopher Richards | Director | 23 Jan 2015 | 9 Jan 2017 | British | 49 years |
| Victor Gysin | Director | 29 Jun 2011 | 31 May 2012 | British | 61 years |
| William Robert Barnes | Secretary | 17 Dec 2001 | 31 Oct 2003 | British | - |