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 Dvorkovich in Russian Railways company. Dvorkovich's father, Vladimir, was an international chess arbiter. Dvorkovich is an official of the Russian Chess Federation and was elected president of FIDE in October 2018, succeeding Kirsan Ilyumzhinov. Some of Dvorkovich's professional interests are economic regulation, financial management, and tax planning. According to BusinessWeek (2003) Arkady was included in the list of 50 potential world leaders. Dvorkovich speaks English and German. Arkady Dvorkovich Arkady Vladimirovich Dvorkovich (; born 26 March 1972) is a Russian public servant and economist, who was Deputy Prime Minister in Dmitry Medvedev's Cabinet from 21 May 2012 until 7 May 2018.