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
Roman Rotenberg company were included in the USA financial ministry's sanctions list along with eleven other individuals and entities. Father – Boris Romanovich Rotenberg (born in 1957), businessman, Russian Judo Federation vice-president, co-owner of SMP Bank.Brother – Boris Borisovich Rotenberg (born 1986), football, FC Lokomotiv Moscow defenderUncle – Arkady Romanovich Rotenberg (born 1951), billionaire, Russian Judo first vice-president, co-owner of SMP Bank.Cousin – Igor Arkadevich Rotenberg (born 1973), businessman, top-manager. Roman Rotenberg Roman Rotenberg is a business man and entrepreneur who was born on 7 April 1981 in Leningrad, the USSR. He holds the following posts: first vice-president of the Russian Ice