Sleath was appointed chief executive of SEGRO in April 2011, having been finance director since 1 January, 2006. Previously, he was finance director of Wagon, the international automotive engineering group, from 1999 to 2005. From 1982 to 1999 he worked for Arthur Andersen, latterly as a partner and head of audit and assurance for the Midlands. He is currently president and a board member of the British Property Federation, and a board member of the European Public Real Estate Association.