Clean Energy Fuels is a Newport Beach-based corporate strategic investor and operator focused on renewable natural gas and transportation decarbonization. It has acted as a lead investor and is most relevant for companies in CleanTech, Climate, Energy, Sustainability, Transportation, Agriculture and Waste Management, especially where waste-methane capture, RNG production/distribution, heavy-duty fleet fueling or low-carbon transportation infrastructure align with its business. The firm invests across the United States and Canada, with stage categorized as Other.