Xyleco is a privately held scientific research and manufacturing company in Wakefield, Massachusetts. Xyleco is developing a process to convert biomass into useful products, including cellulosic ethanol. The board of directors includes Steven Chu. Former US Secretary of State George Shultz was a board member until his death in February of 2021. Employee reviews of Xyleco are mixed. Some workers are extremely optimistic as the company grows, while other workers find management secretive and manipulative.