Oy Tampella Ab was a Finnish heavy industry manufacturer, a maker of paper machines, locomotives, military weaponry, as well as wood-based products such as packaging. The company was based mainly in the city of Tampere.Until 1963 the company was called Tampereen Pellava- ja Rauta-Teollisuus Osake-Yhtiö (The Flax and Iron Industry of Tampere Stock Company). In Swedish it was called Tammerfors Linne-&Jern-Manufakt.A.B..