Board of directors    
 
Dr J M West
Non-executive chairman. Joined the Group in 1964. Chief executive of Keller Group of companies 1982–95. Appointed director of Keller Group in 1990. Appointed chairman in 1995 and became non-executive chairman upon retirement in 1997. Chairman of the Nomination Committee. Age 66.
 
T Dobson
Chief executive. Joined the Group in 1966. President of North American operations 1986–99, now chairman. Appointed director of Keller Group in 1990, managing director in 1995 and chief executive in 1997. Age 61.
 
J R Atkinson
Chief operating officer. Joined the Group in 1990. Group financial controller from 1995–99. Appointed finance director in 1999 and chief operating officer on 6 March 2003. Member of the Nomination Committee. Age 43.
 
R M Rubright
Managing director, North America. Joined the Group in 1984 with the Hayward Baker acquisition. Appointed president, Hayward Baker in 1994 and president, Keller Foundations Inc. in 1998. Appointed to the board on 6 March 2003.
Age 52.
 
J W G Hind
Finance director. Joined the Group on 15 July 2003 from D S Smith plc, where he was group financial controller. Previously with Coopers & Lybrand, including two years in their New York office advising on mergers and acquisitions, before completing five years as a senior manager in London. Age 39.
 
Dr W Sondermann
Managing director, Europe & Overseas. Joined the Group in 1986. Appointed deputy managing director, Europe & Overseas in 1998 and managing director in 2001. Appointed to the board on 28 November 2003. Age 53.
 
P J Lopez Jimenez
Non-executive director. Appointed to the board on 14 January 2003. Mr Lopez Jimenez is chairman of Terratest Tecnicas Especiales S.A. and a non-executive director of ACS Actividades de Construccion y Servicios S.A. Mr Lopez Jimenez, who is also a director of a number of other Spanish businesses, was Secretary of State for Public Works and Urban Development in the Spanish Government between 1977 and 1979. Age 61.
 
E G F Brown
Non-executive director. Appointed to the board on 13 December 2001. Member of the Remuneration, Audit and Nomination Committees. From 1998 to 2000, he was chairman of Mainland Europe for Tibbett & Britten Group plc. Mr Brown is a non-executive director of Forth Ports plc, Vantec Corporation, C.H. Jones Ltd and M H Gerson Ltd. He is also chairman of Upol Ltd and chairman of Europe at Quintiles Transnational Corporation. Age 59.
 
R T Scholes
Non-executive director. Appointed to the board on 7 February 2002. Member of the Remuneration, Audit and Nomination Committees. Mr Scholes was a director at Dresdner Kleinwort Wasserstein from 1986 to 2001. He is a non-executive director of Bodycote International Plc, Chaucer Holdings Plc, Crest Nicholson Plc and Marshalls plc. Age 58.
 
K F Payne
Non-executive director. Appointed to the board in 1999. Chairman of the Audit Committee and a member of the Remuneration and Nomination Committees. From 1991 to 1996 he was an executive director of BET plc with responsibility for finance, planning and development. Age 61.
 
Dr K Bond
Non-executive director. Re-appointed to the board on 30 October 2003. Member of the Remuneration, Audit and Nomination Committees. Non-executive director of Keller
from 1999 until 2002, when he was appointed director of the Police Standards Unit. Chief executive of Kelda plc from 1995 to 2000, then managing director of the European division of Earth Technologies Inc. until September 2002. Age 53.