Compressed natural gas (CNG) fuel storage tanks are the expertise of Quantum Fuel Systems Technologies Worldwide. The company engages in the development and production of these tanks and packaged fuel storage systems and integrates these advancements to vehicle system technologies.

The offerings of the business are marketed to original equipment manufacturers (OEMs) and to OEM truck integrators. It offers the world packaged fuel system modules, high pressure gaseous  fuel tanks, dispensers, hybrid technologies and refueling systems. These systems are incorporated with vehicles to allow these units to run on hydrogen fuel or natural gas. Vehicles that utilize hydrogen or natural gas are more eco-friendly compared to vehicles running on traditional fuel.

As more vehicles get sophisticated in set-up, Quantum Fuel Systems Technologies Worldwide advances their product specifications to match the offerings of these OEMs. It is in Lake Forest, California that the business holds its corporate office.