| Alan Baker | Director | 3 Feb 2005 | 12 Jul 2007 | Scottish | 60 years |
| Alan Baker | Director | 15 Nov 2007 | 12 Feb 2008 | Scottish | 60 years |
| Alan Stewart Thompson | Director | 12 Jul 2007 | 28 Sept 2012 | British | 65 years |
| Alexandra Triay | Director | 11 Jun 2018 | 5 Feb 2021 | French | 47 years |
| Caoimhe Mary Giblin | Director | 28 Jul 2010 | 27 Mar 2013 | Irish | 50 years |
| Ciaran O'brien | Director | 17 Nov 2003 | 27 Jan 2005 | Irish | 58 years |
| Donal Francis Flynn | Director | 5 Dec 2007 | 28 Jul 2010 | Irish | 53 years |
| Emma Howell | Director | 30 Sept 2019 | 23 Feb 2021 | British | 47 years |
| Emma Lewis | Director | 1 Dec 2016 | 11 Jun 2018 | British | 47 years |
| Faheem Zaka Sheikh | Director | 1 May 2023 | 9 Jun 2025 | British | 42 years |
| Graeme Stuart Collinson | Director | 13 May 2008 | 20 Apr 2011 | British | 70 years |
| Hms Directors Limited | Corporate Nominee Director | 29 Aug 2003 | 17 Nov 2003 | United Kingdom | - |
| Hms Secretaries Limited | Corporate Nominee Director | 29 Aug 2003 | 17 Nov 2003 | United Kingdom | - |
| Hms Secretaries Limited | Corporate Nominee Secretary | 29 Aug 2003 | 16 Oct 2013 | United Kingdom | - |
| Javier Francisco Serrano Alonso | Director | 1 May 2023 | 9 Jun 2025 | Spanish | 48 years |
| Laurence Jon Fumagalli | Director | 27 Mar 2013 | 16 Mar 2017 | British | 54 years |
| Laurence Jon Fumagalli | Director | 23 Feb 2021 | 1 May 2023 | British | 54 years |
| Louis Francis Fitzgerald | Director | 17 Nov 2003 | 3 Feb 2005 | Irish | 78 years |
| Martin Mcadam | Director | 17 Nov 2003 | 27 Jan 2005 | Irish | 65 years |
| Martin Mcadam | Director | 12 Feb 2008 | 31 Jul 2008 | Irish | 65 years |
| Michael James Turner | Director | 18 Jan 2011 | 7 Jun 2013 | British | 62 years |
| Michael John Garstang | Director | 15 Nov 2007 | 13 May 2008 | British | 78 years |
| Paul Cyril Dowling | Director | 17 Nov 2003 | 2 Dec 2008 | Irish | 61 years |
| Paul Richard Smith | Director | 2 Dec 2008 | 27 Mar 2013 | British | 63 years |
| Perry Noble | Director | 19 Aug 2014 | 28 Oct 2019 | British | 66 years |
| Peter Francis Hofbauer | Director | 7 Jun 2013 | 1 Dec 2016 | Austrian | 66 years |
| Peter Francis Hofbauer | Director | 11 Jun 2018 | 30 Sept 2019 | Australian | 66 years |
| Peter James Mchale | Director | 27 Mar 2013 | 27 Jun 2013 | Irish | 56 years |
| Peter James Mchale | Director | 5 Aug 2014 | 31 Jul 2015 | Irish | 56 years |
| Peter Symons Donaldson | Director | 2 Dec 2008 | 27 Mar 2013 | British | 65 years |
| Richard Matthew Mccord | Director | 20 Apr 2011 | 7 Jun 2013 | British | 53 years |
| Senan Joseph Murphy | Director | 17 Nov 2003 | 5 Dec 2007 | Irish | 57 years |
| Simon Patrick Redfern | Director | 28 Sept 2012 | 7 Jun 2013 | British | 61 years |
| Sion Colley | Director | 7 Jun 2013 | 11 Jun 2018 | British | 43 years |
| Stephen Bernard Lilley | Director | 27 Mar 2013 | 1 May 2023 | British | 58 years |
| Steven Alexander Cowie | Director | 3 Feb 2005 | 12 Jul 2007 | British | 62 years |
| Susan Elizabeth Wheeler | Director | 12 Jul 2007 | 18 Jan 2011 | British | 62 years |
| Victor Sergio Monje Diez | Director | 16 Mar 2017 | 29 Apr 2019 | Spanish | 41 years |