| Ailish Martina Christian-west | Director | 14 Mar 2014 | 7 Feb 2020 | Irish | 49 years |
| Andrew Jonathan Russell | Director | 15 Mar 2022 | 15 Jun 2022 | British | 53 years |
| Andrew Jonathan Russell | Director | 18 Jul 2022 | 27 Mar 2023 | British | 53 years |
| Andrew Philip Graham Dixon | Director | 25 Aug 2020 | 27 Mar 2023 | British | 58 years |
| Andrew Stephen Dudley | Director | 1 May 2008 | 24 May 2010 | British | 60 years |
| Andrew Stephen Dudley | Director | 29 Mar 2019 | 15 Oct 2019 | British | 60 years |
| Ashley Peter Blake | Director | 4 Feb 2009 | 14 Mar 2014 | British | 56 years |
| Barbara Gibbes | Director | 26 Apr 2019 | 16 Aug 2019 | British | 50 years |
| Caroline Kirby | Director | 10 Jun 2008 | 17 Oct 2011 | British | 57 years |
| Colin Flinn | Director | 30 Mar 2016 | 30 Sept 2019 | British | 56 years |
| Colin Flinn | Director | 1 Feb 2020 | 3 Dec 2020 | British | 56 years |
| David Andrew Fischel | Director | 16 Jul 2004 | 26 Apr 2019 | British | 67 years |
| David Leslie Frank Holt | Director | 24 May 2010 | 30 Sept 2012 | United Kingdom | 67 years |
| Despina Don-wauchope | Director | 16 Dec 2013 | 25 Jan 2019 | British | 56 years |
| Divya Jain | Director | 16 Aug 2019 | 3 Dec 2020 | British | 41 years |
| Edward Joseph Whittaker | Director | 3 Feb 2006 | 24 May 2010 | British | 64 years |
| Edward Matthew Giles Roberts | Director | 13 Aug 2010 | 21 Nov 2019 | British | 62 years |
| Eps Secretaries Limited | Corporate Nominee Secretary | 15 May 2003 | 9 Mar 2004 | United Kingdom | - |
| Gary James Yardley | Director | 19 Jan 2009 | 24 May 2010 | British | 60 years |
| Gavin Paul Prior | Director | 1 Feb 2020 | 3 Dec 2020 | British | 48 years |
| Gerard Patrick Adriaan Mccleester Conway | Director | 30 Nov 2011 | 27 Sept 2012 | British | 57 years |
| Graham Field | Director | 9 Mar 2004 | 8 Dec 2005 | British | 78 years |
| Ian David Hawksworth | Director | 19 Jan 2009 | 24 May 2010 | British | 60 years |
| Ian Petts | Director | 15 Mar 2022 | 27 May 2022 | British | 62 years |
| Ian Petts | Director | 18 Jul 2022 | 27 Mar 2023 | British | 62 years |
| Jack Matthew Busby | Director | 18 Jul 2022 | 27 Mar 2023 | British | 48 years |
| James Gordon Mckinnon | Director | 30 Nov 2011 | 21 Nov 2019 | British | 69 years |
| James Gordon Mckinnon | Director | 31 Dec 2015 | 30 Mar 2016 | British | 69 years |
| James Stephen Gillard | Director | 7 Jul 2021 | 15 Jun 2022 | British | 48 years |
| Jason Hunt Wade | Director | 7 Jul 2021 | 27 Mar 2023 | British | 46 years |
| Jat Singh Sahota | Director | 26 May 2015 | 18 Sept 2017 | British | 57 years |
| John George Abel | Director | 16 Jul 2004 | 30 Sept 2005 | British | 81 years |
| Jonathan Mark Ainsley | Director | 30 Nov 2011 | 31 Dec 2013 | British | 60 years |
| Julian Nicholas Wilkinson | Director | 16 Jan 2014 | 1 Feb 2020 | British | 62 years |
| Kathryn Anne Grant | Director | 4 Sept 2019 | 1 Feb 2020 | British | 52 years |
| Kay Elizabeth Chaldecott | Director | 16 Jul 2004 | 30 Sept 2011 | British | 63 years |
| Lester Paul Hampson | Director | 3 Feb 2006 | 20 Mar 2013 | British | 64 years |
| Loraine Woodhouse | Director | 14 Aug 2009 | 18 Jun 2010 | British | 57 years |
| Mark Kildea | Director | 13 Aug 2010 | 17 Jun 2011 | British | 60 years |
| Martin David Ellis | Director | 18 Oct 2005 | 19 Jan 2009 | British | 61 years |
| Martin David Ellis | Director | 19 Jan 2009 | 13 Aug 2010 | British | 61 years |
| Martin David Ellis | Director | 31 Dec 2010 | 30 Sept 2011 | British | 61 years |
| Martin Frederick Greenslade | Director | 30 Sept 2012 | 16 Dec 2013 | British | 60 years |
| Michael George Butterworth | Director | 30 Nov 2011 | 31 Dec 2015 | British | 72 years |
| Michael John Mcguinness | Director | 23 May 2008 | 19 Jan 2009 | British | 65 years |
| Mikjon Limited | Corporate Nominee Director | 15 May 2003 | 9 Mar 2004 | United Kingdom | - |
| Nicholas De Mestre | Director | 15 Oct 2019 | 3 Mar 2021 | British | 48 years |
| Pablo Sueiras | Director | 18 Jul 2022 | 27 Mar 2023 | British | 56 years |
| Peter Colin Badcock | Director | 16 Jul 2004 | 6 Jul 2006 | British | 81 years |
| Peter James Cleary | Director | 9 Mar 2004 | 3 Mar 2008 | Irish | 68 years |
| Peter Maxwell Dudgeon | Secretary | 9 Mar 2004 | 30 Apr 2011 | British | - |
| Richard John Akers | Director | 20 Mar 2008 | 17 Feb 2014 | English | 64 years |
| Richard Malcolm Cable | Director | 16 Jul 2004 | 31 Oct 2008 | British | 66 years |
| Robert James Jewell | Director | 22 Sept 2017 | 18 May 2018 | British | 47 years |
| Robert James Jewell | Director | 3 Mar 2021 | 18 Jun 2021 | British | 47 years |
| Robert Lee Allen | Director | 21 Nov 2019 | 25 Aug 2020 | British | 54 years |
| Rosalind Charlotte Futter | Director | 25 Jan 2019 | 7 Jul 2021 | British | 47 years |
| Rosemary Jane Coles | Director | 6 Jul 2006 | 23 May 2008 | British | 65 years |
| Russell James Loveland | Director | 26 May 2015 | 22 Sept 2017 | British | 55 years |
| Russell James Loveland | Director | 18 May 2018 | 27 May 2022 | British | 55 years |
| Scott Cameron Parsons | Director | 17 Feb 2014 | 29 Mar 2019 | British | 56 years |
| Simon Duncan Armstrong | Director | 9 Mar 2004 | 20 Mar 2008 | British | 57 years |
| Suzanne Penelope Clay | Director | 20 Mar 2013 | 26 May 2015 | British | 53 years |