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 Burdan Arkady Burdan Maestro Arkady Burdan (born April 7, 1944) is an American fencing coach of Soviet descent. He is the two-time Olympic Fencing Coach for the United States (Athens 2004, Beijing 2008). Maestro Burdan was the United States Fencing Association's Elite Coach of the Year (2002) and he was inducted into the US Fencing Hall of Fame in 2009. He is also the founder of the Arkady Burdan Foundation, a non-profit centered on enriching the physical, academic, and character development of children in need through the sport of fencing. Arkady Burdan is a founder of Nellya Fencers, a fencing club