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
Vasily Anisimov and Andrei Skoch. From here he switched form Russian mines to realeste. His wealth comes from investments in Metalloinvest and his real estate company Coalco. He is a friend of Arkady Rotenberg, and is the head of the Russian Judo Federation. Anisimov was married to Galina Anisimova, and has four children. Their daughter, Galina, was murdered with her husband, Alexander Nalimov, both found "bound and killed execution-style," in their Ekaterinburg home in 2000. Another daughter, Galina's half-sister, Anna Anisimova, is a socialite and ex-model who has been called the "Russian-American Paris Hilton". He lives in Moscow, Russia, and sometimes in