Sistema is a large Russian conglomerate company, headed by Vladimir Yevtushenkov. In March 2006, Yevtushenkov controlled 62% of the shares in Sistema.Sistema has its headquarters in Moscow, and operates a number of consumer service businesses in the areas of: IT and telecoms — Mobile TeleSystems, Moscow City Telephone Network, SkyLink, MTS India. Microelectronics — Sitronics (formerly known as 'Science Center Concern'), NIIME, Mikron, STROM telecom.