United Automobile Services was a bus company, which operated local and regional bus services in County Durham, Cumbria, Northumberland, North Yorkshire and Tyne & Wear, England. It provided bus services across a wide geographical area, stretching from the border town of Berwick-upon-Tweed in the north, Filey in the south, and Carlisle in the west.

The Tilling Group was one of two conglomerates that controlled almost all of the major bus operators in the United Kingdom between World Wars I and II and until nationalisation in 1948.