| Andrew James Duxbury | Director | 1 May 2018 | 3 Jan 2020 | British | 50 years |
| Andrew Richard Hammond | Director | 7 Jul 2015 | 31 Jul 2020 | British | 55 years |
| Andrew Scott Richards | Director | 1 Jul 2013 | 1 Apr 2016 | British | 53 years |
| Bondlaw Directors Limited | Corporate Nominee Director | 14 Feb 1996 | 9 May 1996 | United Kingdom | - |
| Bondlaw Secretaries Limited | Corporate Nominee Secretary | 14 Feb 1996 | 9 May 1996 | United Kingdom | - |
| David Alistair Harris Ewing | Director | 9 May 1996 | 23 Dec 1997 | British | 78 years |
| David Ward Tilman | Director | 27 Oct 2008 | 31 Dec 2009 | British | 72 years |
| Earl Sibley | Director | 3 Jan 2020 | 31 Dec 2024 | British | 53 years |
| Galliford Try Secretariat Services Limited | Corporate Secretary | 1 Mar 2012 | 2 Jan 2020 | United Kingdom | - |
| George Robert Marsh | Director | 28 Sept 1999 | 31 Oct 2002 | British | 76 years |
| Graham Prothero | Director | 2 Apr 2019 | 11 Nov 2022 | British | 64 years |
| Greg Paul Fitzgerald | Director | 7 Jul 2003 | 1 Jan 2016 | British | 61 years |
| Gregson Horace Locke | Director | 1 Jul 2010 | 30 Jun 2015 | British | 69 years |
| Ian Baker | Director | 11 Nov 2008 | 2 Jan 2013 | British | 55 years |
| John Arthur Bower | Secretary | 23 Dec 1997 | 8 May 1998 | British | - |
| John Livingston | Director | 23 Dec 1997 | 28 Sept 1999 | British | 82 years |
| Keith Bryan Carnegie | Director | 3 Jan 2020 | 31 Dec 2023 | British | 56 years |
| Kevin Allan Corbett | Director | 30 Jul 2019 | 3 Jan 2020 | British | 65 years |
| Leonard James Lewis | Director | 9 May 1996 | 23 Dec 1997 | British | 83 years |
| Martin Palmer | Secretary | 3 Jan 2020 | 25 Jun 2021 | - | - |
| Michael Anthony Noble | Director | 23 Dec 1997 | 8 Dec 2003 | British | 76 years |
| Michael Francis Wray Boyd Maunsell | Director | 9 May 1996 | 23 Dec 1997 | British | 67 years |
| Paul Anthony Davies | Secretary | 11 May 1998 | 15 Sept 2000 | British | - |
| Paul David Cooper | Director | 1 Aug 2003 | 1 Oct 2015 | British | 57 years |
| Peter Martin Truscott | Director | 1 Oct 2015 | 26 Mar 2019 | British | 63 years |
| Philip John Bradford | Director | 9 May 1996 | 23 Dec 1997 | British | 77 years |
| Philip John Bradford | Secretary | 9 May 1996 | 23 Dec 1997 | British | - |
| Richard Barraclough | Director | 7 Jul 2003 | 29 Feb 2012 | British | 70 years |
| Richard Barraclough | Secretary | 15 Sept 2000 | 29 Feb 2012 | British | - |
| Tom Marshall Nicholson | Director | 1 Aug 2003 | 5 Apr 2019 | British | 60 years |
| William Ernest Cawse | Director | 1 Aug 2003 | 30 Jun 2012 | British | 66 years |