Thomas the Tank Engine might be a good read, but Thomas Built Buses makes K-12 children really happy, especially if they live a long way from school. The company manufactures approximately a third of the school buses operating in the US, ranging from mini to full liner in size. It also makes non-school vehicles for commercial and special activity transit markets. Its core portfolio consists of activity, childcare, commercial, green, school, and specialty buses. Thomas Built Buses operates as a subsidiary of Daimler Trucks North America from plants in High Point, North Carolina.