Igor Rotenberg Igor Rotenberg Igor Rotenberg, () is a Russian billionaire businessman and the oldest son and heir to Arkady Rotenberg, Russian billionaire businessman and co-owner with brother Boris Rotenberg, of the SGM (Stroygazmontazh) group. The Rotenberg's are closely associated with Vladimir Putin. In October 2018, Igor Rotenberg's wealth is estimated to be $1.1 billion. Igor Rotenberg has been under United States sanctions since 6 April 2018. Igor is the majority shareholder in Gazprom Drilling. Igor Rotenberg was born on 9 September 1974 in Leningrad to Arkady Rotenberg. In 2002, he graduated from the Higher School of Privatization and Entrepreneurship () in
Roman Rotenberg companies in the sports marketing, media and sports equipment markets. He is also active in these following fields: owner of the Hartwall Arena stadium, chairman of the Arena Events board of directors and is Gazprom Export's consultant on external communications. Roman Rotenberg was born in Leningrad, the Soviet Union, in 1981. Irina Haranen, his mother, had a good job in the city's commercial management, while his father Boris Rotenberg, a Russian Master of Sport and a judo coach, taught self-defence at the military academy. His grandfather was of Jewish descent, and worked as a director at the Leningrad factory plant