Sumosan, the contemporary Japanese concept was first launched in Moscow in 1997 by Alexander Wolkow in the Radisson Slavjanskaya Hotel. 
Janina Wolkow, daughter of Alexander, caught the "restaurant bug" at an early age and after developing the Moscow sites she launched Sumosan London in 2002. Since the day it opened Sumosan joined the ranks of the top three Japanese restaurants in London, known for being less flashy and more discreet, hence attracting an A list clientèle as well as countless culinary awards. Almost a decade later Sumosan is still many discerning Londoner's favorite Japanese restaurant. In 2005 Father and daughter launched Sumosan Kiev in Ukraine. 
Sumosan was quickly approached to cater for a host of private and corporate events and won the contract to cater for Chelsea football club VIP boxes. Sumosan outside catering is now an international service furnishing those who appreciate quality - they even service the private jet market and many top mainstream event caterers who feel their Japanese food cannot be surpassed.