 Shortly following this event, Tube Lines was bought from Amey and Bechtel by Transport for London (TfL).Despite this, Amey continued to provide TfL with management and maintenance services for the Jubilee, Northern and Piccadilly lines until the end of 2017, at which point London Underground Limited took over from Amey.In 2010, the firm expanded its presence in the waste management sector via the acquisition of waste disposal company "Donarbon".