The company was founded in 1966, and based in
Welwyn Garden City, with other offices based in Warrington and Derby. Civil engineer
Stef Stefanou joined the company early on, and over time became its owner and chairman. In 1999,
Accord, a business, environmental, highways, housing and technical services was spun out and headed up by his brother
Stelio Stefanou. On 21 September 2007, after eight years of growth, Accord was acquired by
Enterprise plc for £180 million. The John Doyle Group had several companies underneath it. Including John Doyle Construction, Blythewood Plant hire, Bell Projects, and Ibex Interiors. Ibex Interiors was a fit-out and refurbishment contractor based in London. In 2006 A company
management buy out (MBO) occurred, providing share options to staff. On 12 June 2012, the administrators were called in and the company was declared bankrupt. ==References==