Once its passengers are seated and relatively quiet, student transportation of america (sta) is ready to roll. the company provides bus services for school districts -- mainly in rural and suburban areas -- in about 10 states. it also provides charter bus services. sta, which was founded in 1997, is a unit of canada-based student transportation inc., which was created to facilitate a 2004 ipo on the toronto stock exchange. a sister company to sta, student transportation of canada, provides school bus services in ontario. together, the companies serve about 200 school districts with a fleet of about 6,300 buses. sta was founded in 1997 by chairman and ceo denis gallagher.