| Allan David Mcdonald Thomson | Secretary | 4 Dec 2024 | 31 Mar 2025 | - | - |
| Amanda Elizabeth Caines | Director | 24 Sept 2015 | 7 Dec 2017 | British | 49 years |
| Andre Eugene Kinghorn | Director | 7 Dec 2017 | 11 Sept 2018 | British | 48 years |
| Andrew Jonathan Barrie | Director | 7 Apr 2008 | 18 Jul 2013 | British | 59 years |
| Andrew Jonathan Barrie | Director | 29 Jan 2015 | 5 Nov 2022 | British | 59 years |
| Angus Robert Mccoll | Secretary | 1 Jun 2006 | 4 Dec 2024 | British | - |
| Angus Robert Mccoll | Director | 16 Oct 2003 | 4 Dec 2024 | British | 62 years |
| Anthony Robert Faulkner | Director | 28 Aug 2014 | 11 Sept 2018 | British | 53 years |
| Arthur Harold Moore | Director | 19 Jun 2003 | 27 Jun 2013 | British | 75 years |
| Arthur Harold Moore | Director | 29 Aug 2013 | 30 Sept 2025 | British | 75 years |
| Brian Mervyn Semple | Director | 21 Oct 2010 | 28 Apr 2016 | British | 80 years |
| Carillion Secretariat Limited | Corporate Secretary | 19 Jun 2003 | 1 Jun 2006 | United Kingdom | - |
| Chip Schneider | Director | 27 Mar 2014 | 19 Jan 2015 | American | 63 years |
| Christopher John Mead | Director | 23 Jan 2004 | 13 Oct 2004 | British | 71 years |
| Clement David Baptiste Leverd | Director | 25 Nov 2021 | 23 Jun 2022 | French | 40 years |
| David Stuart Hurcomb | Director | 30 Jun 2007 | 31 Dec 2007 | British | 62 years |
| Dougal Stuart Donald Monk | Director | 24 Nov 2022 | 19 Dec 2023 | British | 51 years |
| Duncan Elliot Dickson | Director | 1 Jul 2005 | 31 May 2006 | British | 72 years |
| Elena Giorgiana Wegener | Director | 30 Aug 2018 | 25 Nov 2021 | British | 51 years |
| Francis Robin Herzberg | Director | 31 May 2006 | 27 Jun 2013 | British | 70 years |
| Geoffrey Alan Quaife | Director | 27 Jul 2007 | 12 Aug 2018 | British | 71 years |
| Gordon Bryden | Director | 28 Nov 2006 | 7 Apr 2008 | British | 69 years |
| Keith William Pickard | Director | 27 Jun 2013 | 24 Sept 2015 | British | 58 years |
| Keith Woodward | Director | 1 Feb 2006 | 30 Apr 2006 | British | 72 years |
| Kenneth Alan Koye | Director | 28 Nov 2006 | 22 Oct 2008 | American | 71 years |
| Larry Jay Henry | Director | 1 Nov 2004 | 30 May 2019 | American | 73 years |
| Mark Christopher Wayment | Director | 30 Nov 2012 | 7 Dec 2017 | British | 68 years |
| Mark Richard Woodhams | Director | 6 Apr 2006 | 27 Jul 2007 | British | 60 years |
| Mitre Directors Limited | Corporate Nominee Director | 11 Apr 2003 | 19 Jun 2003 | United Kingdom | - |
| Mitre Secretaries Limited | Corporate Nominee Secretary | 11 Apr 2003 | 19 Jun 2003 | United Kingdom | - |
| Nicholas John Edward Crowther | Director | 11 Dec 2009 | 21 Oct 2010 | British | 66 years |
| Peter John Meffan | Director | 29 Aug 2013 | 16 Oct 2024 | British | 62 years |
| Peter Smart | Director | 19 Jun 2003 | 11 Jul 2014 | British | 75 years |
| Phillip John Cooper | Director | 27 Jul 2007 | 1 Oct 2011 | British | 77 years |
| Rebekah Arlene Barrientos | Director | 6 Sept 2011 | 21 Mar 2014 | American | 51 years |
| Richard Gregg Lumby | Director | 31 Dec 2007 | 27 Jun 2013 | British | 65 years |
| Scott Springett | Director | 7 Dec 2017 | 24 Jun 2021 | British | 58 years |
| Se Ming Hung | Director | 1 Jul 2005 | 11 Sept 2006 | British | 68 years |
| Simon Jeffrey Usher | Director | 26 Mar 2009 | 28 Mar 2013 | British | 60 years |
| Siva Nadesan | Director | 1 Feb 2006 | 28 Nov 2006 | British | 63 years |
| Siva Nadesan | Director | 29 Jan 2009 | 6 Sept 2011 | British | 63 years |
| Thomas Donald Kenny | Director | 30 Apr 2006 | 30 Jun 2007 | Irish | 72 years |
| Timothy John Bowden | Director | 21 Nov 2013 | 1 Aug 2014 | Australian | 51 years |
| Vu Hoang | Director | 16 May 2013 | 11 Aug 2014 | Vietnamese | 54 years |