Demikhovo Machinebuilding Plant[1] or Demikhovsky Engineering Plant[2] (Russian: Демиховский машиностроительный завод, romanized: Demikhovsky mashinostroitelny zavod, abbreviated DMZ) is a major Russian rail vehicle manufacturer.

The site was a silk weaving factory originally owned by the Vetrov family and expropriated by the Soviet government.

But since 1992, the main products manufactured are electric multiple unit trains on 3000 V DC and 25 kV VAC at 50 Hz.

[1] On the occasion of its 50th anniversary in 1985, the factory has been awarded the Order of the Red Banner of Labour.

[3] The company became part of Transmashholding in accordance with the Decree of the Governor of Moscow Region Boris Gromov of 20 July 2001, submitted to the departmental submission to the Committee on Transport, Moscow region.