National Passenger Services

National Passenger Services, d/b/a Stock Transportation, is a Canadian school bus contractor based in Markham, Ontario. The company provides student transportation services for 28 school districts in Ontario, Nova Scotia and Alberta.
Stock Transportation was founded in 1958 by Jeff and Jerry Stock. In July 2002 Stock Transportation was acquired by National Express. That year a number of acquisitions were made such as the purchase of Deluxe Coach Lines and Alouette Bus Lines of North Bay. 
The Customer Service Center in North Bay services approximately 100 home to school bus routes.
Operations.
All of National Passenger Service's buses are equipped with Zonar GPS technology which enables their staff to observe real-time the position of all of their bus fleet.
The company has been criticized for its monopolization and for various performance issues, including delays.