SQZ Biotechnologies Co. is a clinical-stage biotechnology company, which engages in developing cell therapies for patients with cancer, infectious diseases, and other serious conditions. It operates through SQZ cell therapy platform, which uses membrane disruption to deliver material into cells. The company was founded by Robert S. Langer Jr., Klavis F. Jensen, Agustin Lopez Marquez, and Armon Sharei in March 2013 and is headquartered in Watertown, MA.