Liberty Lines Transit, Inc. operates the Bee-Line Bus System of Westchester County, New York. The company's headquarters are located in Yonkers, New York. Liberty Lines began in 1953 with four vehicles. Through mergers, acquisitions and expansion, it has grown into into one of the largest privately-owned transportation companies in New York State. The company currently operates 330 vehicles, though many of these are owned by Westchester County. Liberty Lines carries 30 million passengers annually over 10 million miles (16 million kilometers). The company has about 690 employees.