Optima Bus Corporation
It was originally the trolley and bus production business of Chance Industries Inc. In 1998, Chance Coach, Inc. was sold to American Capital Strategies, which rebranded the company as Optima Bus Corporation in 2003. American Capital subsequently sold Optima to North American Bus Industries, who closed the Kansas assembly plant on August 8, 2007 with production moved to their existing plant in Anniston, Alabama. Optima Bus is now North American Bus Industries, Inc.
- Opus: under 30 ft (9.14 m) or under 35 ft (10.67 m) low-floor bus, design based on Wrightbus bodywork
- American Heritage Streetcar AH-28 - trolley body on bus chassis
- Opus ISE series hybrid