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 Burdan Arkady Burdan Maestro Arkady Burdan (born April 7, 1944) is an American fencing coach of Soviet descent. He is the two-time Olympic Fencing Coach for the United States (Athens 2004, Beijing 2008). Maestro Burdan was the United States Fencing Association's Elite Coach of the Year (2002) and he was inducted into the US Fencing Hall of Fame in 2009. He is also the founder of the Arkady Burdan Foundation, a non-profit centered on enriching the physical, academic, and character development of children in need through the sport of fencing. Arkady Burdan is a founder of Nellya Fencers, a fencing club