Based in Pirkkala, Kevytmetalli Oy was established in 1944. Between 1972 and 1975, the company operated under the name Messukylän Metallivalimo Oy, before adopting its current name, Oy Johnson Metall Ab, in 1976. In the course of its history, the company has been owned by Hartmann von Wittzleben and Johnson Metall Ab.

In turn, Johnson Metall Ab has been owned by

  • Åke Johnson
  • Incentive Ab
  • Electrolux Ab
  • Outokumpu Oy
  • Hexagon Ab
  • Norvestor AS