Tupolev (Russian: Ту́полев, ) is a Russian aerospace and defence company, headquartered in Basmanny District, Central Administrative Okrug, Moscow. Known officially as Public Stock Company Tupolev, it is the successor of the Tupolev OKB or Tupolev Design Bureau (OKB-156, design office prefix Tu) headed by the Soviet aerospace engineer A.N. Tupolev. The company will be celebrating its 90th anniversary on October 22, 2012. The Russian government is planning to merge Tupolev with Mikoyan, Ilyushin, Irkut, Sukhoi, and Yakovlev as a new company named United Aircraft Corporation.