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
Marc Rotenberg the Norbert Wiener Award for Social and Professional Responsibility, the American Lawyer Top Lawyers Under 45, and the Vicennial Medal (2012) from Georgetown University. He was included in the "Lawdragon 500", a listing of the leading lawyers in America. Marc Rotenberg grew up in Boston, Massachusetts. His brother Jonathan Rotenberg founded the Boston Computer Society at age 13. Marc is married to Anna Markopoulos Rotenberg, an ESL teacher in the District of Columbia Public Schools. A tournament chess player, Rotenberg is a three-time Washington, DC Chess Champion (2007, 2008, 2010) and works to promote chess in the DC public schools