Clean Energy Fuels Corp. provides natural gas as an alternative fuel for vehicle fleets in the United States and Canada. It designs, builds, operates, and maintains fueling stations; and supplies compressed natural gas (CNG) fuel for light, medium, and heavy-duty vehicles, as well as liquefied natural gas (LNG) fuel for medium and heavy-duty vehicles. The company also manufactures, sells, and services non-lubricated natural gas fueling compressors and other equipment used in CNG stations and LNG stations; provides operation and maintenance services; transports and sells CNG to industrial and institutional energy users; and processes and sells renewable natural gas, which is used as vehicle fuel or for renewable power generation. In addition, it helps its customers in acquiring and financing natural gas vehicles, as well as obtaining local, state, and federal grants and incentives. The company serves fleet vehicle operators in various markets, including heavy-duty trucks, airports, taxis, refuse hauling, fleet services, ready mix, and public transit. As of December 31, 2014, it served approximately 943 fleet customers operating approximately 40,814 natural gas vehicles; and owned, operated, or supplied approximately 545 natural gas fueling stations. The company was incorporated in 2001 and is headquartered in Newport Beach, California.