| Andrew Michael O'brien | Director | 9 Jun 2015 | 4 Nov 2015 | British | 54 years |
| Anthony Charles William Wimbush | Director | 1 Apr 2005 | 17 Jun 2010 | British | 81 years |
| Antony Charles Green | Secretary | 1 Dec 1999 | 20 Apr 2000 | British | - |
| Charles Compton Anthony Glossop | Director | 7 Aug 1992 | 22 Mar 2011 | British | 85 years |
| David Dodge | Director | 10 Dec 2014 | 1 May 2015 | British | 59 years |
| David Smith | Director | 16 Jun 2023 | 31 Jan 2025 | British | 58 years |
| Dennis Heptonstall | Director | 7 Aug 1992 | 19 Oct 2001 | British | 91 years |
| Francis Peter Edginton | Director | 15 Apr 1996 | 9 Jun 2003 | British | 89 years |
| Gerrithdina Hermina Johanna Hunter | Director | 7 Aug 1992 | 15 Apr 1996 | British | 105 years |
| Guy Charles Gusterson | Director | 30 Jun 2017 | 31 Mar 2022 | British | 56 years |
| John Keith Oldale | Director | 24 Jun 1992 | 17 Jul 1992 | British | 89 years |
| Julia Frances Jessel | Director | 9 Jun 2003 | 1 Apr 2005 | British | 76 years |
| Keith Jones | Director | 17 Jul 1992 | 7 Aug 1992 | British | 72 years |
| Lisa Ann Katherine Minns | Director | 21 Oct 2022 | 4 Jul 2023 | Irish | 51 years |
| Lisa Ann Katherine Minns | Director | 29 Feb 2024 | 31 Jan 2025 | Irish | 51 years |
| Martin Keith Blencowe | Director | 23 Apr 2014 | 9 Jun 2015 | British | 77 years |
| Mathew John Clements | Director | 1 Apr 2020 | 16 Jun 2023 | British | 53 years |
| Matthew Molsom | Director | 31 Mar 2022 | 16 Jun 2023 | British | 51 years |
| Mawlaw Secretaries Limited | Corporate Secretary | 24 Jun 1992 | 17 Jul 1992 | United Kingdom | - |
| Michael Edward Dunn | Director | 1 Dec 2010 | 31 May 2015 | British | 58 years |
| Michael Timmins | Director | 10 Dec 2014 | 8 Mar 2018 | British | 72 years |
| Modwen Corporate Services Limited | Corporate Secretary | 12 Jan 2015 | 31 Jan 2025 | United Kingdom | - |
| Paul Ernest Doona | Director | 17 Jul 1992 | 1 Dec 1999 | British | 74 years |
| Paul Ernest Doona | Secretary | 17 Jul 1992 | 1 Dec 1999 | British | - |
| Peter Joseph Beresford | Director | 19 Oct 2001 | 9 Jun 2003 | British | 81 years |
| Phillip Edward Bailey Atkins | Director | 9 Jun 2003 | 17 Jun 2010 | British | 75 years |
| Richard Gerald William Grosvenor | Director | 17 Jun 2010 | 23 Apr 2014 | British | 59 years |
| Richard Gerald William Grosvenor | Director | 9 Jun 2015 | 4 Nov 2015 | British | 59 years |
| Robert Charles Hardwick | Director | 1 Jul 2010 | 9 Jun 2015 | British | 67 years |
| Robert Jan Hudson | Director | 30 Nov 2016 | 1 Apr 2020 | British | 53 years |
| Robert John Evans | Director | 29 Jun 2023 | 29 Feb 2024 | British | 53 years |
| Rupert Timothy Wood | Director | 8 Mar 2018 | 31 Jul 2019 | British | 53 years |
| Stanley William Clarke | Director | 7 Aug 1992 | 23 Apr 2004 | British | 93 years |
| Stephen Francis Prosser | Director | 10 Dec 2014 | 30 Jun 2017 | British | 62 years |
| Susan Carol Fadil | Nominee Director | 24 Jun 1992 | 17 Jul 1992 | British | 60 years |
| Timothy Paul Haywood | Secretary | 18 Jun 2004 | 26 Nov 2010 | British | - |
| William Alder Oliver | Director | 19 Apr 2000 | 30 Nov 2016 | British | 70 years |
| William Alder Oliver | Secretary | 20 Apr 2000 | 18 Jun 2004 | British | - |