BioVantage Fuels Manufactures high quality, ASTM grade biodiesel from a variety of feedstocks. Founded in 2007, the company owns and operates a facility in Belvidere, IL capable of producing over three million gallons of biodiesel annually. BioVantage also sells glycerin, a co-product of the biodiesel manufacturing process, and provides technical expertise to other companies looking for oleo-chemical engineering expertise.