The Dow Jones Sustainability Indices (DJSI) launched in 1999, are a family of indices evaluating the sustainability performance of thousands of companies trading publicly, operated under a strategic partnership between S&P Dow Jones Indices and RobecoSAM (Sustainable Asset Management).[1] of the S&P Dow Jones Indices. They are the longest-running global sustainability benchmarks worldwide and have become the key reference point in sustainability investing for investors and companies alike.[2] In 2012, S&P Dow Jones Indices was formed via the merger of S&P Indices and Dow Jones Indexes.[3]