Founded in 2007 in Boston, Orion Healthcare Equity Partners invests in early-stage healthcare companies primarily in the United States. The firm typically invests in rounds with five participants and has notable sponsors such as Sanofi-Genzyme BioVentures, Roche Venture Fund, and Pfizer Venture Investments. With a focus on therapeutics and biotechnology, Orion has had a high level of activity in 2016 and has seen successful exits in 2017. The fund typically invests in deals ranging from 1 to 5 million dollars and has a preference for startups that are one year old or younger. Some of their notable portfolio companies include AnTolRx and Lysosomal Therapeutics.