CleanTech Alpha Corporation develops and commercializes clean technologies that facilitate the use of natural resources for the ethanol industry in the United States. The company's corn oil extraction technology integrates into the back-end of existing dry mill corn ethanol plants to extract and recover inedible crude corn oil, which is used in the production of advanced carbon-neutral liquid fuels and other biomass-derived alternatives to fossil fuel-based products. The company licenses its technologies to ethanol producers. The company was formerly known as GreenShift Corporation and changed its name to CleanTech Alpha Corporation in August 2021. CleanTech Alpha Corporation was founded in 1984 and is headquartered in Oklahoma City, Oklahoma.