"Major investment firms are snapping up environmental, social and governance (ESG) ratings companies at a rapid clip — three hookups within just the past year."

[COMMENTARY] It’s to be expected that many of the rising ESG raters would be acquired by somewhat related and established firms. It demonstrates ESG’s coming-of-age. Is it good or bad for investors? Only in five, ten, or more years will we know.
The race to embrace ESG ratings, by Anya Khalamayzer, August 10, 2017, GreenBiz, USA.