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
Marc Rotenberg the Norbert Wiener Award for Social and Professional Responsibility, the American Lawyer Top Lawyers Under 45, and the Vicennial Medal (2012) from Georgetown University. He was included in the "Lawdragon 500", a listing of the leading lawyers in America. Marc Rotenberg grew up in Boston, Massachusetts. His brother Jonathan Rotenberg founded the Boston Computer Society at age 13. Marc is married to Anna Markopoulos Rotenberg, an ESL teacher in the District of Columbia Public Schools. A tournament chess player, Rotenberg is a three-time Washington, DC Chess Champion (2007, 2008, 2010) and works to promote chess in the DC public schools