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
Arkady Rotenberg and a £8 million apartment in London. The couple's lawyers had obtained a secrecy order preventing media in the U.K. from reporting on the divorce, but the order was overturned on appeal. He has five children including Igor () who is a Russian billionaire businessman, Liliya () who is a doctor and lives in Germany, son Paul () who is a competitive hockey player, and two other children that live in the United Kingdom with his former second wife Nataliya. Arkady Rotenberg Arkady Romanovich Rotenberg (, born December 15, 1951 in Leningrad) is a Russian businessman and tycoon. With his