Clean Energy Fuels Corp. offers natural gas as an eco-friendlier alternative fuel for commercial vehicle fleets, along with complete fueling infrastructure services, primarily across the United States and Canada. The company provides a variety of natural gas options, including sustainable renewable natural gas (RNG), compressed natural gas (CNG), and liquefied natural gas (LNG), specifically tailored for medium and heavy-duty transport. Their comprehensive services extend beyond just fuel supply to include the design, construction, operation, and maintenance of both public and private fleet customer fueling stations.