| Alexander George Bremner | Director | 19 Jun 2009 | 10 Feb 2011 | British | 71 years |
| Allister Gilbert Michael Wood | Director | 29 Apr 2004 | 9 Oct 2006 | Australian | 62 years |
| Andrew Craig Mason | Director | 19 May 2003 | 25 Nov 2003 | British | 50 years |
| Andrew David Darling | Director | 25 Oct 2001 | 29 Jan 2004 | British | 64 years |
| Barry Hylton Davies | Director | 8 Jan 2002 | 28 Nov 2002 | British | 83 years |
| Biif Corporate Services Limited | Corporate Director | 4 Mar 2011 | 29 Feb 2016 | United Kingdom | - |
| Carillion Secretariat Limited | Corporate Secretary | 5 Jul 2001 | 9 Oct 2006 | United Kingdom | - |
| David Fulton Gilmour | Director | 22 Nov 2012 | 8 Nov 2021 | British | 62 years |
| David James Lomas | Director | 19 Mar 2009 | 29 Sept 2010 | British | 50 years |
| Dla Nominees Limited | Corporate Nominee Director | 29 Mar 2001 | 5 Jul 2001 | - | - |
| Dla Secretarial Services Limited | Corporate Nominee Director | 29 Mar 2001 | 5 Jul 2001 | - | - |
| Dla Secretarial Services Limited | Corporate Nominee Secretary | 29 Mar 2001 | 5 Jul 2001 | - | - |
| Duncan Elliot Dickson | Director | 28 Nov 2002 | 1 Jan 2004 | British | 71 years |
| Faraidon Saheb-zadha | Director | 29 Sept 2010 | 22 Nov 2012 | British | 47 years |
| Graham Farley | Director | 12 Jul 2006 | 9 Oct 2006 | British | 76 years |
| James William Ward | Director | 5 Jul 2001 | 1 Jan 2004 | British | 73 years |
| John Ivor Cavill | Director | 29 Feb 2016 | 7 May 2024 | British | 53 years |
| John Mcdonagh | Director | 9 Oct 2006 | 19 Mar 2009 | British | 56 years |
| John Wrinn | Director | 8 Nov 2021 | 7 Feb 2023 | British | 63 years |
| Julia Elizabeth Prescot | Director | 25 Oct 2001 | 19 May 2003 | British | 66 years |
| Martin Timothy Smith | Director | 19 Jan 2005 | 19 Jan 2024 | British | 58 years |
| Michael Andrew Donn | Director | 8 Nov 2005 | 2 May 2008 | British | 53 years |
| Michael James Findlay | Director | 2 May 2008 | 11 Mar 2009 | British | 55 years |
| Michael Joseph Ryan | Director | 9 Oct 2006 | 19 Mar 2009 | Irish | 59 years |
| Nigel Anthony John Brindley | Director | 24 Mar 2003 | 1 Jul 2006 | British | 69 years |
| Paul Borough-copley | Director | 5 Jul 2001 | 8 Jan 2002 | British | 76 years |
| Victoria Helen Dickinson | Director | 25 Nov 2003 | 15 Apr 2005 | British | 60 years |