Oy Lokomo Ab was a Finnish manufacturer of railroad equipment and steam locomotives, situated in Tampere, Finland. The company was founded in 1915 by a group of Finnish businesspeople, including Jalmar Castrén and Emil Aaltonen. The Lokomo factories in Tampere produced the MIR submersibles for the Soviet Academy of Sciences. They later merged into the Metso Corporation. Jaakko Syrjä was a worker for the company.[1]