Konstantin Nikolaev Konstantin Nikolaev Konstantin Nikolaev () is a billionaire Russian businessman who is a co-owner of and , the largest private rail operator in Russia, CIS, and the Baltic states. He is a major investor in American Ethane and serves on its board. Late July 2018, his net worth was estimated at $1.2 billion. He allegedly is a financial supporter of Maria Butina. Through Igor Levitin, Alexey Mordashov, Arkady Rotenberg, Gennady Timchenko, and Alexander Voloshin, Konstantin Nikolaev is a partner and close associate of numerous persons in Vladimir Putin's inner circle. In 1996, Nikolaev, Nikita Mishin, Andrei Filatov, and Alexey Mordashov
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