Quantum Fuel Systems is a company that develops, manufactures, and sells compressed natural gas fuel storage tanks and packaged fuel storage systems for trucks and passenger vehicles. Its products include high-pressure gaseous fuel tanks, packaged fuel system modules, gaseous fuel electronic vehicle control systems and software, hybrid control and motor control systems, inverters and motors, and engines and generators. The company also designs, develops, engineers, and validates fuel storage systems for natural gas vehicle applications, including passenger vehicles and heavy-duty trucks; as well as integrates electric motors, inverters, generators, and electronic vehicle control components for hybrid and plug-in electric vehicles.