Ratings agency Moody's has acquired the majority stake of ESG ratings and research group Vigeo Eiris, it has confirmed. Paris-based data analytics group Vigeo Eiris specialises in decision making tools for sustainable and ethical investment screening. While it will continue to operate under its existing brand, it will become an affiliate of Moody's Investors Service. "Vigeo Eiris has been a pioneer in bringing greater transparency and awareness of ESG and sustainability issues to market participants and has continued to innovate and expand as demand for this information has grown," Moody's Investors Service, global head of assessments, Myriam Durand, said in a media statement. "Moody's acquisition of a majority stake in Vigeo Eiris will contribute to the further development of leading ESG risk assessments, enabling the market to benefit from a global standard in assessing ESG considerations as part of their investment decisions."