Collins Bus Corporation is an American bus manufacturer headquartered in Hutchinson, Kansas. Best known for production of yellow school buses, the company produces buses for multiple applications; all bodies designed by the company have been produced for cutaway van chassis. Collins was founded in 1967 by Don Collins, Sr. as E-CON-O Conversion; originally a part of Collins Industries, the company exists today as a wholly owned subsidiary of manufacturing company REV Group. All production is sourced from a 94,000 square-foot facility from South Hutchinson, Kansas.