Yuri Borisovich (Bentsionovich) Milner (Russian: Ю́рий Бори́сович (Бенцио́нович) Ми́льнер; born 11 November 1961) is a Russian entrepreneur , venture capitalist and physicist . He founded investment firms Digital Sky Technologies (DST), now called Mail.ru Group and DST Global. Through DST Global, Milner is an investor in Facebook, Zynga, Twitter, Flipkart, Spotify, ZocDoc, Groupon, JD.com, Planet Labs, Xiaomi, OlaCabs, Alibaba, Wish and many others.