Pell Frischmann Group has acquired a number of companies, including the Department for Transport's West Yorkshire Road Construction Sub-Unit (1981), 70 staff from the Infrastructure Directorate of the Milton Keynes Development Corporation joined the Group to form Pell Frischmann Milton Keynes Ltd (1988), Pell Frischmann Water Ltd was formed in 1990 as a joint venture between the Pell Frischmann Group and South West Water plc. EPD Consultants was acquired from Balfour Beatty (1998) and De Leuw Rothwell Ltd (2000) was a new company set up safeguarding the jobs of a number of staff following the collapse and subsequent liquidation of the former De Leuw Rothwell.