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
Arkady Rotenberg of Rotenberg's real estate, including four villas in Sardinia and Tarquinia, and a hotel in Rome. The Russian State Duma then proposed a bill, known as the Rotenberg Law, allowing sanctioned Russians to get compensated by the state, but it was declined. Rotenberg's personal wealth has been estimated in 2018 at $3.1 billion. He was formerly married to his second wife Natalia Rotenburg, who is about 30 years his junior. They were divorced about 2015 in the U.K. While the financial details of the divorce are private, the agreement includes division of the use of a £35 million Surrey mansion