| Alasdair Campbell | Director | 29 Jun 2022 | 9 Feb 2024 | British | 42 years |
| Alexandra Jane Hardwicke | Director | 27 Nov 2023 | 22 Nov 2024 | British | 48 years |
| Amit Joshi | Director | 18 Mar 2022 | 12 Oct 2022 | British | 33 years |
| Andrew John Coppin | Director | 23 May 2008 | 10 Dec 2010 | British | 61 years |
| Angela Louise Roshier | Director | 19 Oct 2010 | 11 Nov 2011 | British | 51 years |
| Anthony Alec Swift | Director | 24 Jan 2006 | 23 Jun 2009 | Other | 84 years |
| Asif Ghafoor | Director | 31 Jul 2006 | 1 Mar 2017 | British | 56 years |
| Charles William Grant Herriott | Director | 24 Oct 2016 | 21 Aug 2017 | British | 40 years |
| Christopher Thomas Solley | Director | 1 Feb 2012 | 1 Mar 2019 | British | 56 years |
| Derek Orr Anderson | Director | 19 Jul 2005 | 13 May 2008 | British | 62 years |
| Engel Johan Roelof Koolhaas | Director | 11 Nov 2011 | 16 Jan 2013 | Dutch | 66 years |
| Geoffrey Alan Quaife | Director | 23 Jun 2009 | 22 Feb 2019 | British | 71 years |
| Graham Farley | Director | 7 Mar 2008 | 23 Jun 2009 | British | 77 years |
| John Gerard Connelly | Director | 4 Apr 2011 | 1 Mar 2017 | British | 66 years |
| John Gerard Connelly | Director | 1 Mar 2017 | 7 Mar 2022 | British | 66 years |
| John Mcdonagh | Director | 20 Dec 2004 | 24 Mar 2005 | British | 57 years |
| Jonathan Roger Chester | Director | 18 Mar 2005 | 24 Jan 2006 | British | 60 years |
| Joseph John Ledwidge | Director | 1 Apr 2005 | 24 May 2005 | British | 56 years |
| Keith Cottrell | Director | 18 Mar 2005 | 26 Sept 2005 | British | 71 years |
| Kenneth William Gillespie | Director | 18 Mar 2005 | 13 May 2008 | British | 65 years |
| Kenneth William Gillespie | Director | 7 Jul 2008 | 1 Jan 2012 | British | 65 years |
| Louis Javier Falero | Director | 21 Aug 2017 | 1 Oct 2018 | British | 49 years |
| Louis Javier Falero | Director | 1 Oct 2018 | 18 Mar 2022 | British | 49 years |
| Macroberts - (firm) | Corporate Nominee Secretary | 9 Oct 2003 | 1 May 2008 | - | - |
| Macroberts Corporate Services Limited | Corporate Secretary | 1 May 2008 | 1 Mar 2016 | United Kingdom | - |
| Macroberts Corporate Services Limited | Corporate Nominee Director | 9 Oct 2003 | 20 Dec 2004 | United Kingdom | - |
| Martin Timothy Smith | Director | 13 May 2008 | 31 Jan 2025 | British | 59 years |
| Moira Turnbul-fox | Director | 1 Mar 2016 | 14 Sept 2016 | British | 55 years |
| Moira Turnbull-fox | Director | 16 Jan 2013 | 1 Mar 2016 | British | 55 years |
| Nadiia Kaznacheieva | Director | 13 Oct 2022 | 6 Jul 2023 | Ukrainian | 47 years |
| Natalia Poupard | Director | 22 Feb 2019 | 29 Jun 2022 | British | 49 years |
| Neeti Mukundrai Anand | Director | 1 Oct 2018 | 18 Mar 2022 | British | 42 years |
| Neeti Mukundrai Anand | Director | 18 Mar 2022 | 6 Jul 2023 | British | 42 years |
| Neeti Mukundrai Anand | Director | 27 Jul 2023 | 31 Dec 2023 | British | 42 years |
| Oytun Altasli Widmer | Director | 27 Jul 2023 | 26 Sept 2024 | British | 53 years |
| Paul James Hatcher | Secretary | 30 Mar 2022 | 24 May 2023 | - | - |
| Paul Meredith Rees | Director | 20 Dec 2004 | 31 Jul 2006 | British | 56 years |
| Peter Forsyth | Director | 19 Jul 2005 | 7 Mar 2008 | British | 67 years |
| Phillip John Cooper | Director | 23 Jun 2009 | 1 Oct 2011 | British | 77 years |
| Rhona Macdonald Bree | Director | 18 Mar 2005 | 4 Jul 2005 | British | 52 years |
| Richard George Bradbury | Director | 26 Sept 2005 | 23 May 2008 | British | 75 years |
| Sherard Secretariat Services Limited | Corporate Secretary | 15 Mar 2016 | 23 Mar 2022 | United Kingdom | - |
| Stewart Chalmers Grant | Director | 1 Mar 2016 | 24 Oct 2016 | British | 75 years |
