Boris Romanovich Rotenberg Boris Romanovich Rotenberg Boris Romanovich Rotenberg (, born in Leningrad on 3 January 1957) is a Russian business man and oligarch. He is co-owner (with his brother Arkady Rotenberg) of the SGM (StroyGazMontazh) group, the largest construction company for gas pipelines and electrical power supply lines in Russia. He was listed by Forbes as Russia's 69th wealthiest person in 2016 with a net worth of $1.07 billion. He is considered a close confidant of president Vladimir Putin. Rotenberg was very involved in martial arts between 1968 and 1978, particularly judo. He trained alongside Vladimir Putin and won several awards for
Igor Rotenberg on Russian federal highways beginning November 2015. Insted of the expected total revenues from Platon of 20 to 40 billion rubles, the actual revenues were 25% or less than those figures. On 29 March 2018, Igor sold his 33.3% stake in TPS Real Estate Holdings for $1 billion to his sister Liliya Rotenberg (). On 6 April 2018, Igor Rotenberg and his NPV Engineering Group were placed under United States sanctions. In October 2018, Igor Rotenberg had an estimated wealth of $1.1 billion by Forbes. He is married and has three children. Igor Rotenberg Igor Rotenberg, () is a Russian