Morningstar recently purchased Sustainalytics. S&P bought RobecoSAM (producer of DJSI – Dow Jones Sustainability Index).
In 2019, Sustainalytics acquired GES International; Moody’s purchased a majority stake in Four Twenty Seven and in Vigeo Eiris. Thompson Reuters acquired FC Business Intelligence.
Here’s a timeline. If you have any suggestions to make this better, see the Comment Box below.