Boro'line (London) describes the London operations of the former municipal bus company Boro'line Maidstone. Boro'line Maidstone was the arms length bus company of Maidstone Borough Council. Seeking to expand its business it saw the new system of tendering for London Bus routes as a prime opportunity for expansion. Boro'line Maidstone were eventually sold to Maidstone & District in May 1992 after financial difficulties in the main caused by expansion into London.