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
David Rotenberg had not been a party member for long enough. Rotenberg has been named as an honorary officer in the Canadian Jewish Congress. David Rotenberg David Rotenberg (born July 24, 1930) is a former politician in Ontario, Canada. He served in the Legislative Assembly of Ontario from 1977 to 1985 as a member of the Progressive Conservative Party, and was briefly a cabinet minister in the government of Frank Miller. Rotenberg was born in Toronto, and educated at the University of Toronto. He worked as an insurance agent, and served on Toronto City Council and Metro Toronto Council from 1961 to