Since 1995 he is the major shareholder and chairman of the board of the Russian investment holding company Sistema (together with another Top Managers such as Evgeny Novitsky). Sistema was an early shareholder in Russian mobile telecommunications pioneer VimpelCom, and sold its stake when the company was the first Russian company to list on the New York Stock Exchange in November 1996. Yevtushenkov took Sistema public in February 2005, in a $1.35 billion IPO that was Russia's largest ever at the time. Today Sistema is the largest shareholder in MTS, Russia's largest telecommunications company. Other major Sistema assets include children's goods retailer Detsky Mir, pulp and paper holding Segezha Group , Russia’s largest chain of private Health care clinics MEDSI etc.