Dmitry Troitsky & Dmitry Korzhev started working together as students. Their first venture was car sales that lead to formation of Mega-auto company in 1993. Mega-auto is now one of the biggest car dealers in Saint Petersburg. In 1995 Dmitry Troitsky & Dmitry Korzhev founded juice producing plant (Multon). Multon was sold to Coca-Cola after 10 years for $500 million. In 2001 they both co-founded O-Key chain of supermarkets.
Troitsky has obtained Bachelor of Arts & Bachelor of Science degrees from Leningrad Shipbuilding Institute. His company (O'KEY Group) was listed on London Stock Exchange in 2010 and the current market capitalization is $3.0 billion.