Daimler Truck North America
Blue Bird Corporation
Western Star Trucks
Daimler Truck
IC Bus
Collins Industries
Sterling Trucks
Detroit Diesel
GMC (automobile)
Peterbilt
Mack Trucks
Motor Coach Industries
Orion Bus Industries
White Motor Company
Yellow Bus Company in the US
thomasbuiltbuses.com
Thomas Built Buses, Inc. is an American bus manufacturer. Best known for its production of the first ever rear engine Type C school bus. Thomas produces other bus designs for a variety of usages. Wikipedia