| Alan Baker | Director | 20 Jul 2005 | 28 Mar 2008 | Scottish | 60 years |
| Barry O'regan | Director | 20 May 2011 | 17 Jul 2012 | Irish | 49 years |
| Barry O'regan | Director | 31 May 2016 | 5 May 2022 | Irish | 49 years |
| Caoimhe Mary Giblin | Director | 28 Jul 2010 | 22 Sept 2014 | Irish | 50 years |
| Christopher Bready | Director | 29 Oct 2020 | 5 May 2022 | British | 44 years |
| Christopher Paul Rule | Director | 30 May 2018 | 6 Dec 2024 | British | 47 years |
| Colin Clarke Nicol | Director | 19 Mar 2013 | 12 Dec 2014 | British | 66 years |
| Daniel Frank Hobson | Director | 18 Mar 2016 | 14 Aug 2025 | British | 47 years |
| David Gardner | Director | 17 May 2010 | 12 Oct 2012 | British | 63 years |
| Donal Francis Flynn | Director | 5 Dec 2007 | 28 Jul 2010 | Irish | 53 years |
| Fraser Masson | Director | 5 May 2022 | 3 Jun 2024 | British | 38 years |
| Fraser Mcgregor Alexander | Director | 15 Feb 2008 | 30 Jun 2010 | British | 63 years |
| Hms Directors Limited | Corporate Nominee Director | 4 Mar 2005 | 20 Jul 2005 | United Kingdom | - |
| Hms Secretaries Limited | Corporate Nominee Director | 4 Mar 2005 | 20 Jul 2005 | United Kingdom | - |
| Hms Secretaries Limited | Corporate Nominee Secretary | 4 Mar 2005 | 31 Dec 2008 | United Kingdom | - |
| James Isaac Smith | Director | 1 Jul 2008 | 23 Mar 2018 | British | 64 years |
| Jason Paul Porter | Director | 18 Mar 2016 | 4 Sept 2017 | British | 45 years |
| Jason Paul Porter | Director | 31 Oct 2017 | 5 Aug 2019 | British | 45 years |
| Javier Francisco Serrano Alonso | Director | 4 Aug 2021 | 13 Oct 2025 | Spanish | 48 years |
| Jeremy Williamson | Director | 1 Jan 2016 | 10 Sept 2019 | British | 60 years |
| Jeremy Williamson | Director | 5 May 2022 | 1 Jan 2024 | British | 60 years |
| Jonathan Nicholas Ord | Director | 17 May 2016 | 17 Dec 2018 | British | 43 years |
| Lawrence John Vincent Donnelly | Secretary | 5 Jan 2009 | 1 Dec 2014 | British | - |
| Martin Mcadam | Director | 11 Mar 2008 | 1 Jul 2008 | Irish | 65 years |
| Neil Lannen | Director | 10 Sept 2019 | 29 Oct 2020 | Scottish | 58 years |
| Pamela Walsh | Director | 19 Mar 2013 | 24 Oct 2014 | Irish | 60 years |
| Paul Cyril Dowling | Director | 20 Jul 2005 | 28 Jan 2011 | Irish | 61 years |
| Paul Richard Smith | Director | 19 Mar 2013 | 31 May 2016 | British | 63 years |
| Peter Symons Donaldson | Director | 19 Mar 2013 | 31 Dec 2015 | British | 65 years |
| Ross William Peter Fenton | Director | 1 Jan 2024 | 11 Aug 2025 | British | 43 years |
| Sally Fairbairn | Secretary | 1 Dec 2014 | 1 Aug 2023 | - | - |
| Senan Murphy | Director | 20 Jul 2005 | 5 Dec 2007 | Irish | 57 years |
| Simon Murray Heyes | Director | 1 Jul 2008 | 17 May 2010 | British | 63 years |
| Stephen Bernard Lilley | Director | 18 Mar 2016 | 3 Apr 2025 | British | 58 years |
| Steven Alexander Cowie | Director | 20 Jul 2005 | 5 Jun 2008 | British | 62 years |
| Victor Sergio Monje Diez | Director | 5 Aug 2019 | 4 Aug 2021 | Spanish | 41 years |
