Sustainalytics is a company that rates the sustainability of listed companies based on their environmental, social and corporate governance (ESG) performance. The company was born from a merger between Toronto-based Jantzi Research, which was founded in 1992 by Sustainalytics' current CEO Michael Jantzi, and its European counterpart. Following its acquisition of GES International on 9 January 2019, Sustainalytics had more than 600 employees with offices in 17 cities around the world and over 700 institutional investor clients. On 21 April 2020, Morningstar, Inc. acquired the remaining ~60% of Sustainalytics' shares to become the sole owner.