| RISDON, Richard, Mr. ACTIVE | Director | 07 Sep 2026 | | United Kingdom | October 1974 | 10, Fleet Place, London, EC4M 7RB, United Kingdom |
| SYMONS, Charles Ralph, Mr. ACTIVE | Director | 07 Sep 2026 | | United Kingdom | February 1974 | 10, Fleet Place, London, EC4M 7RB, United Kingdom |
| FIELD, Joanna Maria RESIGNED | Secretary | 27 Jan 2015 | 31 Mar 2017 | | | Mott Macdonald House, 8-10 Sydenham Road, Croydon, Surrey, CR0 2EE |
| HOWARTH, Brian Samuel RESIGNED | Secretary | | 30 Apr 1996 | | | Regal House, Duke Street, Stockport, Cheshire, SK1 3AA |
| KELLY, Raymond RESIGNED | Secretary | 30 Apr 1996 | 03 Mar 2003 | | | 199 Longhurst Lane, Mellor, Stockport, Cheshire, SK6 5PN |
| LYNN, Marjorie Eva RESIGNED | Secretary | 02 Apr 2008 | 27 Jan 2015 | | | Mott Macdonald House, 8-10 Sydenham Road, Croydon, Surrey, CR0 2EE |
| WILSON, John Owen Parker RESIGNED | Secretary | 03 Mar 2003 | 02 Apr 2008 | | | 190 Church Lane, Marple, Stockport, SK6 7LA |
| BOOTH, Derek Stephen RESIGNED | Director | 01 Jul 1999 | 02 Apr 2008 | | September 1954 | Hetlands, Markland Hill, Bolton, Lancashire, BL1 5AF |
| COX, Andrew Lionel RESIGNED | Director | 01 Jul 1999 | 13 Oct 2006 | United Kingdom | October 1953 | 15 Mile End Lane, Stockport, Cheshire, SK2 6BN |
| DAVIES, David Robert RESIGNED | Director | 01 Jul 1999 | 31 Mar 2006 | England | June 1947 | 33 Portree Drive, Holmes Chapel, Crewe, Cheshire, CW4 7JB |
| DIXON, Kevin Paul RESIGNED | Director | 02 Apr 2008 | 27 Nov 2015 | United Kingdom | June 1953 | Mott Macdonald House, 8-10 Sydenham Road, Croydon, Surrey, CR0 2EE |
| FITT, Christopher Robert RESIGNED | Director | | 31 Oct 1995 | | August 1941 | 38 Ollerbarrow Road, Hale, Altrincham, Cheshire, WA15 9PP |
| GALBRAITH, Ian Martin Richard RESIGNED | Director | 31 Dec 2020 | 30 Sep 2025 | England | July 1963 | 10, Fleet Place, London, EC4M 7RB, United Kingdom |
| HAIGH, Michael David RESIGNED | Director | 31 Mar 2015 | 31 Jul 2022 | United Kingdom | June 1960 | Mott Macdonald House, 8-10 Sydenham Road, Croydon, Surrey, CR0 2EE |
| HARRIS, James Huw Keir RESIGNED | Director | 30 Jun 2019 | 07 Sep 2026 | England | June 1968 | 10, Fleet Place, London, EC4M 7RB, United Kingdom |
| HOWELLS, Keith John, Mr. RESIGNED | Director | 02 Apr 2008 | 30 Jun 2019 | England | June 1953 | Mott Macdonald House, 8-10 Sydenham Road, Croydon, Surrey, CR0 2EE |
| HUBBARD, Stephen RESIGNED | Director | 14 May 2007 | 02 Apr 2008 | United Kingdom | January 1956 | 11 The Old Orchard, Antrobus, Northwich, Cheshire, CW9 6LH |
| JOHNSON, Michael Nelson RESIGNED | Director | 01 Jul 1999 | 31 Dec 2001 | | February 1941 | 19 East Rise, Falmouth, Cornwall, TR11 4HN |
| KELLY, Anthony Mark RESIGNED | Director | 01 Oct 1992 | 02 Apr 2008 | | March 1955 | 22 Whitehall Drive, Hartford, Northwich, Cheshire, CW8 1SJ |
| KELLY, Raymond RESIGNED | Director | 12 May 1997 | 03 Mar 2003 | | September 1943 | 199 Longhurst Lane, Mellor, Stockport, Cheshire, SK6 5PN |
| LEONARD, Guy William Ingledew, Mr. RESIGNED | Director | 02 Apr 2008 | 31 Dec 2020 | England | November 1955 | Mott Macdonald House, 8-10 Sydenham Road, Croydon, Surrey, CR0 2EE |
| O'GARA, Tony RESIGNED | Director | 01 Apr 2007 | 02 Apr 2008 | England | January 1962 | 2 Wenlock Road, Sale, Cheshire, M33 3TR |
| OAKES, Christopher Paul RESIGNED | Director | 01 May 2003 | 02 Apr 2008 | | May 1961 | 5 Waterside Avenue, Marple, Stockport, SK6 7LZ |
| PHILP, Ian William Cameron RESIGNED | Director | 01 Oct 1992 | 01 Feb 1999 | | December 1947 | 27 Woodhouse Lane, Sale, Cheshire, M33 4JZ |
| QUINLAN, David Frederick RESIGNED | Director | | 30 Jun 1999 | | July 1948 | Dover Beck House, 4 Parsonage Gardens Marple, Stockport, SK6 7NB |
| ROUD, Edwin George RESIGNED | Director | 31 Mar 2015 | 07 Sep 2026 | United Kingdom | September 1963 | 10, Fleet Place, London, EC4M 7RB, United Kingdom |
| SIDES, Geoffrey Raymond RESIGNED | Director | | 21 May 2002 | England | June 1932 | 51 Beatrice Road, Worsley, Manchester, Lancashire, M28 2TW |
| STANWIX, Brian James RESIGNED | Director | 01 Jul 1999 | 02 Apr 2008 | England | May 1953 | 2, Langrigge Court, Bowness-On-Windermere, Windermere, Cumbria, LA23 3AJ, United Kingdom |
| STOVELL, Kevin John RESIGNED | Director | 02 Apr 2008 | 27 Nov 2015 | United Kingdom | July 1952 | Mott Macdonald House, 8-10 Sydenham Road, Croydon, Surrey, CR0 2EE |
| THORPE, Walter RESIGNED | Director | | 06 Sep 1992 | | September 1927 | The Bungalow Ollersett Lane, New Mills, Stockport, Cheshire, SK12 4JE |
| THURRELL, Bruce Harry RESIGNED | Director | 01 Jul 1999 | 31 Mar 2003 | | March 1943 | 16 Nansen Road, Gatley, Cheadle, Cheshire, SK8 4JL |
| TRAVERS, Catherine Helen RESIGNED | Director | 01 Aug 2022 | 07 Sep 2026 | England | October 1964 | 10, Fleet Place, London, EC4M 7RB, United Kingdom |
| WICKENS, Peter John RESIGNED | Director | 02 Apr 2008 | 31 Dec 2010 | England | January 1950 | Mott Macdonald House, 8-10 Sydenham Road, Croydon, Surrey, CR0 2EE |
| WILLIAMS, Richard RESIGNED | Director | 02 Apr 2008 | 31 Mar 2015 | England | February 1955 | Mott Macdonald House, 8-10 Sydenham Road, Croydon, Surrey, CR0 2EE |