Arkady Rotenberg Arkady Rotenberg Arkady Romanovich Rotenberg (, born December 15, 1951 in Leningrad) is a Russian businessman and tycoon. With his brother Boris Rotenberg, he is co-owner of the Stroygazmontazh (SGM) group, the largest construction company for gas pipelines and electrical power supply lines in Russia. He was listed by "Forbes" in 621st place among the world's wealthiest persons in 2014. He is considered a close confidant of president Vladimir Putin. As of November 2017, "Forbes" estimates his fortune at $2.5 billion. He is subject to personal sanctions by the United States government related to the events during the Ukrainian crisis.
Igor Rotenberg Organizational Structures. Since 2006, he is the owner and the Chairman of the Board of Directors of the Moscow-based NPV Engineering Group. Since 2008, he is the Vice-President of the design bureau CB "Northern Sea Route" (). Since 2010, he is the Chairman of the Board of Directors of Mosenergo Heat and Power Company. Since 2011, he is the Chairman of the Board of Directors of (Burgaz). In 2015, Arkady Rotenberg sold his son Igor Rotenberg a number of assets including up to 79% of Gazprom Drilling (Bureniye), 28% of the road contruction company Mostotrest, and 33.3% of Jersey-based TPS