| INFRASTRUCTURE MANAGERS LIMITED ACTIVE | Secretary | 31 Dec 2008 | | | | 8th Floor, 6 Kean Street, London, WC2B 4AS, United Kingdom |
| DAKPOE, Prince Yao ACTIVE | Director | 06 Aug 2024 | | United Kingdom | December 1979 | Infrastructure Managers Limited, 2nd Floor Drum Suite, Saltire Court, 20 Castle Terrace, Edinburgh, EH1 2EN, United Kingdom |
| EDWARDS, Matthew James ACTIVE | Director | 16 Jan 2017 | | United Kingdom | February 1985 | 8th Floor, 6 Kean Street, London, WC2B 4AS, United Kingdom |
| JOHNSON, Lee ACTIVE | Director | 27 Aug 2013 | | United Kingdom | June 1970 | Rms Depot, North Street, Stilton, Cambridgeshire, PE7 3RR, United Kingdom |
| LEVERD, Clement David Baptiste ACTIVE | Director | 12 Nov 2025 | | United Kingdom | August 1986 | Infrared Capital Partners Limited, Level 7, One Bartholomew Close, Barts Square, London, ECA 7BL, United Kingdom |
| NEVES, Joao Carlos Peres Ferreira ACTIVE | Director | 20 Jun 2022 | | England | March 1970 | Level 7, One Bartholomew Close, Barts Square, London, EC1A 7BL, United Kingdom |
| FELLOWES, Colin RESIGNED | Secretary | 26 Mar 1994 | 11 Nov 1994 | | | 9 Thistlewood Drive, Summerfields, Wilmslow, Cheshire, SK9 2RF |
| FIDLER, Christopher Laskey RESIGNED | Secretary | 11 Nov 1994 | 30 Jan 1996 | | | 66, Marlborough Avenue, Cheadle Hulme, Cheshire, SK8 7AW |
| HAWKINS, Douglas George RESIGNED | Secretary | 30 Jan 1996 | 31 Dec 2008 | | | Wild Hatch Greenview Avenue, Leigh, Tonbridge, Kent, TN11 8QT |
| BART MANAGEMENT LIMITED RESIGNED | Nominee Secretary | 26 Mar 1993 | 08 Jul 1994 | | | C/O Laytons Carmelite 5th Floor, 50 Victoria Embankment Blackfriars, London, EC4Y 0LS |
| ALBEROLA, Carlos RESIGNED | Director | 28 Aug 2002 | 24 Nov 2004 | | August 1947 | Montalban No.5, Madrid, 28014, FOREIGN, Spain |
| ARTHUR, Christopher Duncan RESIGNED | Director | 24 Sep 2003 | 28 Apr 2006 | | May 1968 | 26 Cheapside, Woking, Surrey, GU21 4JQ |
| BARRIENTOS, Rebekah Arlene RESIGNED | Director | 30 Apr 2013 | 24 Jun 2014 | Usa | June 1975 | 601, Jefferson Street, Houston, Texas, 77002, Usa |
| BLASI, Laura Grau RESIGNED | Director | 31 Oct 2019 | 05 Nov 2021 | Spain | October 1981 | Avenida Pedralbes, 17-08034, Barcelona, Spain, 08034, Spain |
| BOWLER, David William RESIGNED | Director | 25 Feb 2010 | 20 Jul 2020 | Germany | January 1945 | Cannon Place, 78 Cannon Street, London, EC4N 6AF, United Kingdom |
| CARVALHO, Guilherme Pimenta Froes De RESIGNED | Director | 19 Mar 2009 | 25 Feb 2010 | United Kingdom | January 1975 | Barclays Bank Plc, 1 Churchill Place, London, E14 5HP |
| CHAMBERLAIN, Janet Patricia RESIGNED | Director | 16 Jul 2007 | 24 Jan 2008 | United Kingdom | October 1950 | 15 Oakley Close, Sandbach, Cheshire, CW11 1RQ |
| CHAMBERLAIN, Janet Patricia RESIGNED | Director | 30 Jun 2001 | 01 Jul 2006 | United Kingdom | October 1950 | 15 Oakley Close, Sandbach, Cheshire, CW11 1RQ |
| CLAMPETT, Richard Martin RESIGNED | Director | 17 May 1995 | 29 Aug 2001 | United Kingdom | July 1946 | Stonerest, Stone Lane, Emley, Huddersfield, West Yorkshire, HD8 9RT |
| COE, Victor Ensenat RESIGNED | Director | 12 Jun 2017 | 05 Nov 2021 | Spain | November 1974 | Avenida Pedralbes, 17, Barcelona, 08034, Spain |
| DAVIES, Nigel James Maxwell RESIGNED | Director | 08 Jul 1994 | 17 May 1995 | | August 1954 | 3 Moat End, Bierton, Aylesbury, Buckinghamshire, HP22 5DW |
| DEL RIO CARCANO, Carlos Francisco RESIGNED | Director | 23 Sep 2013 | 12 Jun 2017 | Spain | April 1950 | Abertis A, Av. Parc Logistic 12-20, Barcelona, 08040, United Kingdom |
| DODD, Phillip Joseph RESIGNED | Director | 01 Jul 2006 | 31 Jan 2008 | United Kingdom | September 1955 | 15 The Greenway, Ickenham, Uxbridge, Middlesex, UB10 8LS |
| EVANS, Paul Anthony RESIGNED | Director | 30 Jan 1996 | 26 Jun 2009 | | October 1947 | 3 Oakmoor Cottage, Bradley, Alresford, Hampshire, SO24 9SA |
| EXAKOUSTIDOU, Angeliki Maria RESIGNED | Director | 03 Feb 2023 | 10 Oct 2025 | United Kingdom | September 1991 | Level 7, One Bartholomew Close, Barts Square, London, EC1A 7BL, United Kingdom |
| FETTERMAN, Anthony Jeffrey RESIGNED | Director | 30 Mar 2005 | 23 Jul 2007 | | September 1948 | Hill Park Court, Springfield Drive, Leatherhead, Surrey, KT22 7NL |
| GARCIA ZARANDIETA, Antonio RESIGNED | Director | 24 Nov 2004 | 30 Sep 2008 | | July 1969 | C/ Ramon Y Cajal 2, Portal 1, 2 D, Las Rozas, Madrid, 28230, FOREIGN, Spain |
| GATEHOUSE, Mary Annabel RESIGNED | Director | 23 Sep 2013 | 22 Apr 2015 | England | December 1973 | Tbi House, 72-104 Frank Lester Way, Luton, Bedfordshire, LU2 9NQ, United Kingdom |
| GRAELLS FERRANDEZ, Jorge RESIGNED | Director | 24 Nov 2004 | 23 Sep 2013 | Spain | June 1952 | Avda. Parc Logistic 12-20, Barcelona, 08040, Spain |
| HAWKINS, Douglas George RESIGNED | Director | 01 Apr 1996 | 31 Dec 2008 | | September 1946 | Wild Hatch Greenview Avenue, Leigh, Tonbridge, Kent, TN11 8QT |
| HENRY, Larry Jay RESIGNED | Director | 23 Oct 2007 | 17 Jul 2019 | United States | November 1953 | Kbr Limited, Hill Park Court, Springfield Drive, Leatherhead, Surrey, KT22 7NL, United Kingdom |
| JACKSON, Andrew Philip RESIGNED | Director | 30 Jan 1996 | 24 Sep 2003 | England | May 1951 | 6 Sparvells, Eversley, Hook, Hampshire, RG27 0QG |
| JAMES, Christopher RESIGNED | Director | 23 Jul 2003 | 05 Jul 2004 | | January 1968 | 19 Hazel Close, Southwater, Horsham, West Sussex, RH13 9GN |
| KIBBLEWHITE, Stephen Francis RESIGNED | Director | 25 Sep 2002 | 06 Mar 2008 | United Kingdom | October 1956 | Martlets, Hurston Lane, Storrington, Pulborough, West Sussex, RH20 4HH, United Kingdom |
| LAVERY, Christopher James RESIGNED | Director | 18 Jan 2017 | 16 Oct 2018 | England | June 1965 | 82, King St, Manchester, M2 4WQ, United Kingdom |
| LAYZELL, Erik Francis RESIGNED | Director | 05 Jul 2004 | 30 Mar 2005 | | May 1963 | Hill Park Court, Springfield Drive, Leatherhead, Surrey, KT22 7NL |
| LAZARO, Francisco, Dr Ingeniero De Caminos RESIGNED | Director | 09 Jun 1999 | 28 Aug 2002 | | March 1935 | 163 Brompton Road, London, SW3 1PY |
| LEVERD, Clement David Baptiste RESIGNED | Director | 05 Nov 2021 | 20 Jun 2022 | United Kingdom | August 1986 | Infrared Capital Partners Limited, Level 7, One Bartholomew Close, Barts Square, London, ECA 7BL, United Kingdom |
| MARONNE, Celine Marie RESIGNED | Director | 24 Jun 2014 | 16 Jan 2017 | United Kingdom | November 1987 | 3i, 16 Palace Street, London, SW1E 5JD, United Kingdom |
| MATTHEWS, Andrew RESIGNED | Director | 09 Dec 2009 | 26 Apr 2012 | United Kingdom | September 1962 | Fifth Floor, 100 Wood Street, London, EC2V 7EX |
| MATTHEWS, Andrew RESIGNED | Director | 30 Jan 1996 | 24 Jun 1998 | | September 1962 | Ravenscroft, Gannock Park, Deganwy Conwy, North Wales, LL31 9PJ |
| MC DONAGH, John RESIGNED | Director | 04 Mar 2008 | 19 Jun 2009 | | December 1969 | 30, St Botolph's Road, Sevenoaks, Kent, TN13 3AG |
| MEFFAN, Peter John RESIGNED | Director | 16 Oct 2018 | 22 Feb 2022 | England | January 1964 | Kbr, Hill Park Court, Springfield Drive, Leatherhead, Surrey, KT22 7NL, United Kingdom |
| MOURELLE, Rafael RESIGNED | Director | 16 Dec 1996 | 28 Apr 1997 | | August 1952 | Moralzarzal No 80 20d, Madrid 28034, Madrid Espana, FOREIGN |
| MOURELLE MORALES, Rafael RESIGNED | Director | 25 Sep 2002 | 24 Nov 2004 | | August 1952 | Montalban No. 5, Madrid, 28014, FOREIGN, Spain |
| NOBLE, Trevor Mills RESIGNED | Director | 17 May 1995 | 19 Nov 1996 | England | November 1946 | Ferndell 17 Milner Drive, Cobham, Surrey, KT11 2EZ |
| OLEAGA GONZALO, Luis RESIGNED | Director | 28 Apr 1997 | 28 Apr 1997 | | January 1944 | Avenida Del Brasil 31, 7a, Madrid, 28020, Spain |
| OLEAGA GONZALO, Luis RESIGNED | Director | 28 Apr 1997 | 27 May 1998 | | January 1944 | Avenida Del Brasil 31, 7a, Madrid, 28020, Spain |
| POPE, Barry Robert Boyde RESIGNED | Director | 24 Sep 2003 | 16 Jul 2007 | England | May 1948 | 44 Farleigh Road, New Haw, New Haw, Addlestone, KT15 3HR |
| RAWLINSON, Martin James RESIGNED | Director | 23 Nov 2006 | 06 Mar 2008 | United Kingdom | August 1966 | 8 Harrington Close, Windsor, SL4 4AD |
| REVUELTA, Victor RESIGNED | Director | 17 May 1995 | 16 Dec 1996 | | April 1943 | Playa De Majoca, 9 Bonanza Boadilla Del Monte, 28660 Madrid, Spain |
| ROSALES, Joaquin Schjaer RESIGNED | Director | 22 Apr 2015 | 12 Jun 2017 | Spain | April 1982 | Abertis, Avenida Pedralbes, 17, Barcelona, 08034, Spain |
| RYAN, Michael Joseph RESIGNED | Director | 04 Mar 2008 | 19 Jun 2009 | United Kingdom | April 1966 | Apartment 42,, Central Building, 3 Matthew Parker Street, London, SW1H 9NE |
| SALMERON, Luis Sanchez RESIGNED | Director | 01 Apr 1996 | 24 May 1999 | | September 1962 | Avenida De Los Claveles 68, Majadamonda 28220 Madrid, Spain, FOREIGN |
| SIMPSON, Peter Frederick RESIGNED | Director | 19 Nov 1996 | 27 Jan 2009 | | June 1944 | 87, Nork Way, Banstead, Surrey, SM7 1HN |
| SMITH, Philip RESIGNED | Director | 01 Jan 1999 | 27 Aug 2013 | United Kingdom | September 1948 | 4 Bowbrook Close, Peopleton, Pershore, Worcestershire, WR10 2EZ |
| SPARROW, Nicola RESIGNED | Director | 17 Jul 2019 | 22 Feb 2022 | England | September 1974 | Kbr, Hill Park Court, Springfield Drive, Leatherhead, Surrey, KT22 7NL, United Kingdom |
| STEEL, David RESIGNED | Director | 30 Oct 2002 | 05 Sep 2006 | | March 1954 | 5 Stag Leys, Ashtead, Surrey, KT21 2TD |
| THORNE, Alexander Victor RESIGNED | Director | 05 Nov 2021 | 17 Jan 2023 | United Kingdom | March 1989 | Infrared Capital Partners Limited, Level 7, One Bartholomew Close, Barts Square, London, ECA 7BL, United Kingdom |
| USHER, Simon Jeffrey RESIGNED | Director | 26 Jan 2009 | 30 Apr 2013 | England | December 1966 | Kbr, Hill Park Court, Springfield Drive, Leatherhead, Surrey, KT22 7NL, United Kingdom |
| VILANOVA ABAD, Daniel RESIGNED | Director | 30 Sep 2008 | 23 Sep 2013 | Spain | April 1976 | Plaqa Vaxell, Ms Assumpta 10 6 1, Badalona, Barcelona 08912, Spain |
| VILARASAU, Javier Carol RESIGNED | Director | 12 Jun 2017 | 30 Sep 2019 | Spain | February 1962 | Avenida Pedralbes, 17, Barcelona, 08034, Spain |
| WETHERALL, Robert James RESIGNED | Director | 17 May 1995 | 30 Jan 1996 | England | September 1943 | Hollydyke House, Little Missenden, Amersham, Buckinghamshire, HP7 0RD |
| WILLIAMS, David Huw RESIGNED | Director | 21 Jul 1998 | 08 Jun 1999 | | May 1949 | Woodborough 24 Downs Road, Epsom, Surrey, KT18 5JD |
| WOLSTENHOLME, Ian John RESIGNED | Director | 25 Sep 2002 | 24 Sep 2003 | | March 1966 | 147 The Green, Worsley, Manchester, M28 2PA |
| WYNNE-SIMMONS, Benedict James RESIGNED | Director | 26 Apr 2012 | 24 Jun 2014 | United Kingdom | August 1981 | Northwest Wing, Bush House, Aldwych, London, WC2B 4EZ |
| AMEC NOMINEES LIMITED RESIGNED | Director | 08 Jul 1994 | 17 May 1995 | | | Sandiway House, Hartford, Northwich, Cheshire, CW8 2YA |
| BART MANAGEMENT LIMITED RESIGNED | Nominee Director | 26 Mar 1993 | 08 Jul 1994 | | | C/O Laytons Carmelite 5th Floor, 50 Victoria Embankment Blackfriars, London, EC4Y 0LS |
| BART SECRETARIES LIMITED RESIGNED | Nominee Director | 26 Mar 1993 | 08 Jul 1994 | | | C/O Laytons Carmelite 5th Floor, 50 Victoria Embankment Blackfriars, London, EC4Y 0LS |