| Adl Healthcare Limited | Corporate Director | 18 Jun 2010 | 14 Feb 2012 | United Kingdom | - |
| Amanda Miller | Secretary | 13 Jul 2017 | 16 Jan 2023 | - | - |
| Andrew Derrick Leaver | Director | 1 Jul 2003 | 18 Jun 2010 | British | 63 years |
| Argus Nominee Directors Limited | Corporate Nominee Director | 27 Jun 2003 | 1 Jul 2003 | United Kingdom | - |
| Argus Nominee Secretaries Limited | Corporate Nominee Secretary | 27 Jun 2003 | 1 Jul 2003 | United Kingdom | - |
| Christopher Wilson | Director | 9 Nov 2007 | 30 Jun 2011 | British | 65 years |
| James Sidney Haddleton | Secretary | 2 Nov 2015 | 2 Mar 2017 | - | - |
| Jeremy Paul Cotterill | Director | 9 Nov 2007 | 25 Mar 2010 | British | 64 years |
| Linda Leaver | Director | 1 Jul 2003 | 18 Jun 2010 | English | 63 years |
| Linda Leaver | Secretary | 1 Jul 2003 | 18 Jun 2010 | English | - |
| Martin James Abell | Director | 1 Dec 2015 | 19 Mar 2019 | British | 51 years |
| Martin James Abell | Secretary | 2 Mar 2017 | 13 Jul 2017 | - | - |
| Nicholas Patrick Keher | Director | 19 Mar 2019 | 24 Aug 2021 | British | 43 years |
| Peter Lutz George | Director | 18 Jun 2010 | 11 Nov 2016 | British | 64 years |
| Robert Macgregor Warburton Wood | Secretary | 18 Jun 2010 | 31 Jul 2011 | British | - |
| Robin Andrew John Sibson | Secretary | 31 Jul 2011 | 2 Nov 2015 | British | - |
| Robin Andrew John Sibson | Director | 14 Feb 2012 | 1 Dec 2015 | British | 67 years |
| Shaun Edward Chilton | Director | 1 Apr 2014 | 14 Oct 2022 | British | 58 years |
