AmTran

American Transportation Corporation (better known as AmTran) was an American bus manufacturer. Headquartered in Conway, Arkansas, AmTran specialized in yellow school buses, alongside buses for other uses. Tracing its roots to Ward Body Works (established in 1933), The company was formed in 1980 following the bankruptcy of Ward to continue bus production.

In 1991, the company became a subsidiary of Navistar International, leading to a series of acquisitions of school bus body manufacturers by chassis suppliers during the 1990s. In 2000, Navistar rebranded AmTran by introducing the International IC, with other vehicles taking on International branding later. In 2002, the "AmTran" brand name was retired, as the name was changed to IC Corporation (IC Bus since 2009).

As with its predecessor company, AmTran corporate headquarters and manufacturing facilities were located in Conway, Arkansas. In 2001, the company opened another manufacturing facility in Tulsa, Oklahoma (where IC Bus currently assembles vehicles).