| Adam George Waddington | Director | 16 Aug 2011 | 22 Apr 2013 | British | 52 years |
| Alan Peter Fordyce | Director | 25 Nov 2009 | 17 Apr 2015 | British | 59 years |
| Andrew David Clapp | Director | 16 Apr 2014 | 6 Jul 2018 | British | 51 years |
| Benjamin Matthew Cashin | Director | 25 Nov 2009 | 11 Aug 2011 | British | 54 years |
| David Richard Vernon Luscombe | Director | 25 Nov 2009 | 30 Nov 2015 | British | 66 years |
| Infrastructure Managers Limited | Corporate Secretary | 18 Jul 2019 | 1 Apr 2024 | United Kingdom | - |
| John Mcdonagh | Director | 27 Nov 2015 | 3 Mar 2021 | British | 57 years |
| Kevin John Pearson | Secretary | 26 Jun 2013 | 18 Jul 2019 | - | - |
| Kirsty Jane Thirwell | Director | 25 Nov 2009 | 23 Mar 2023 | British | 55 years |
| Peter Kenneth Johnstone | Director | 20 Oct 2015 | 30 Jun 2023 | British | 61 years |
| Robert John William Wotherspoon | Director | 29 Sept 2009 | 20 Oct 2015 | British | 59 years |
| Robert Peter Walker | Secretary | 29 Sept 2009 | 26 Jun 2013 | British | - |
| Sinesh Ramesh Shah | Director | 17 May 2013 | 16 Apr 2014 | British | 49 years |