Montauk Renewables, Inc. engages in the recovery and processing of biogas from landfills and other non-fossil fuel sources for beneficial use as a replacement to fossil fuels. It operates through the Renewable Natural Gas and Renewable Electricity Generation segments. The Renewable Natural Gas segment deals with the production of renewable natural gas. The Renewable Electricity Generation segment includes generation of electricity at biogas-to-electricity plants. The company was founded in 1980 and is headquartered in Pittsburgh, PA.