Medidata (NASDAQ:MDSO) has been named to Barron’s first annual list of the “100 Most Sustainable Companies” in the U.S., demonstrating the company's positive impact in five categories: shareholders, employees, customers, community and planet. The magazine’s ranking was determined in partnership with the Calvert Research and Management arm of Eaton Vance (EV). Calvert Research and Management analyzed 1,000 of the largest publicly traded companies headquartered in the U.S. Medidata is ranked 70th