Peakstone Advises on Sale of Renewable Energy Company

M&A Advisor

October, 2019. Peakstone served as the exclusive M&A advisor to GreenWhey Energy, Inc. on its sale to Viresco AD.

Founded in 2013, GreenWhey Energy ( uses anaerobic digesters to treat whey-rich wastewater produced by cheesemakers, as well as other nutrient-rich liquids produced by other food and beverage companies. Viresco AD ( is a leading biofuels company specializing in advanced anaerobic digestion technology for the conversion of waste into energy.

GreenWhey entered voluntary receivership in 2016 as operational and regulatory issues created financial stress. Rebecca DeMarb (, the Receiver, noted, “After a long sale process and restructuring inside of the receivership, we are thrilled to see GreenWhey in the competent hands of Viresco.”

GreenWhey Energy’s General Manager, Barry Bassett, who joined the company in 2018 and was instrumental to stabilizing GreenWhey’s operations, said, “Due to our unique business model, we met a wide range of potential buyers, including anaerobic digestor companies, financial investors, municipalities, industry experts and engineering groups. Peakstone effectively advised us on the range of alternatives. We are delighted to join forces with Viresco AD. They bring a vision and financial commitment to make the GreenWhey Energy plant an innovative leader in the anaerobic digester industry.”

Terms of the transaction were not disclosed.

For additional information regarding Peakstone services, please contact the following:

Steve Royko, Managing Director, 608-236-4490,

About Peakstone

Peakstone is a leading investment bank that specializes in mergers and acquisitions advisory and capital raising for middle market clients. The team is comprised of senior investment banking professionals who have decades of experience and have executed hundreds of transactions totaling billions of dollars. For additional information, visit