| Andrew Geoffrey Stirling Addison | Director | 1 Dec 2009 | 9 Mar 2012 | British | 63 years |
| Andrew James Duxbury | Director | 1 May 2018 | 9 Apr 2019 | British | 50 years |
| Anthony Lane | Director | 1 Dec 2009 | 1 Oct 2017 | British | 66 years |
| Bradley Davison | Director | 6 Nov 2017 | 26 Apr 2021 | British | 53 years |
| Bruce Arnell Brooke Smith | Director | 19 Mar 2003 | 18 Feb 2009 | British | 79 years |
| David Anthony Furzer | Director | 19 Mar 2003 | 31 Dec 2003 | British | 75 years |
| David Michael Peacock | Director | 12 Jun 2006 | 5 Mar 2009 | British | 64 years |
| Dorothy May Graeme | Nominee Secretary | 16 May 1994 | 23 May 1994 | British | - |
| Duncan John Marshall Cumberland | Director | 30 Oct 2007 | 22 May 2009 | British | 53 years |
| Earl Sibley | Director | 3 Jan 2020 | 31 Dec 2024 | British | 53 years |
| Emma Jane Colin | Director | 9 Jan 2025 | 30 May 2025 | British | 41 years |
| Galliford Try Secretariat Services Limited | Corporate Secretary | 1 Mar 2012 | 3 Jan 2020 | United Kingdom | - |
| Graham Hutton | Director | 1 Dec 2009 | 1 Apr 2013 | British | 52 years |
| Ian Baker | Director | 1 Dec 2009 | 2 Jan 2013 | British | 55 years |
| Jacqueline Chalmers | Director | 9 Apr 2019 | 21 Oct 2020 | British | 50 years |
| Keith Bryan Carnegie | Director | 3 Jan 2020 | 31 Dec 2023 | British | 56 years |
| Lesley Joyce Graeme | Nominee Director | 16 May 1994 | 23 May 1994 | British | 72 years |
| Linda Carol Carson | Director | 2 Jun 2009 | 1 Dec 2009 | British | 73 years |
| Linda Carol Carson | Secretary | 23 May 1994 | 1 Aug 2004 | British | - |
| Mark Robert Farnham | Director | 1 Dec 2009 | 1 May 2018 | British | 60 years |
| Martin Trevor Digby Palmer | Secretary | 3 Jan 2020 | 25 Jun 2021 | - | - |
| Nigel John Palmer | Director | 3 Jul 2012 | 5 Oct 2017 | British | 59 years |
| Paul Antony Moran | Director | 26 Apr 2021 | 30 Apr 2024 | British | 57 years |
| Raymond Frank Trebilcock | Director | 19 Mar 2003 | 1 Dec 2009 | British | 79 years |
| Richard Barraclough | Secretary | 1 Dec 2009 | 29 Feb 2012 | British | - |
| Richard John Hayman | Director | 1 Dec 2009 | 12 Sept 2016 | British | 59 years |
| Roger Patrick Carson | Director | 23 May 1994 | 1 Dec 2009 | British | 78 years |
| Roger Patrick Carson | Secretary | 1 Aug 2004 | 1 Dec 2009 | British | - |
| Rory John Carson | Director | 2 Jun 2009 | 1 Dec 2009 | British | 46 years |
| Timothy John Douglas | Director | 1 Dec 2009 | 29 Sept 2017 | British | 63 years |
| Tom Patrick Carson | Director | 2 Jun 2009 | 1 Dec 2009 | British | 42 years |
| Wayne Martyn Bennett | Director | 1 Dec 2009 | 27 Aug 2010 | British | 50 years |
| William Ernest Cawse | Director | 1 Dec 2009 | 12 Sept 2016 | British | 66 years |