Denyo has been earning the trust of customers by supplying power sources such as high-quality, high-performance and highly durable engine-driven generators, engine-driven wielders and engine-driven air compressors backed by its proven technologies, not only in Japan but around the world.

DENYO History

  • July 1948
    • Established Japan Power Welding Machine Co., Ltd.
  • March 1959
    • Developed and manufactured high-speed engine-driven welders
  • December 1961
    • Completed construction on Saitama plant and began to manufacture engine-driven generators
  • February 1966
    • Developed sound-proof generators and began production of sound-proof engine-driven generators and welders
  • July 1966
    • Changed its corporate name to Denyo Co., Ltd.
  • July 1970
    • Completed construction on Shiga plant
  • April 1973
    • Began to manufacture engine-driven air compressors
  • March 1976
    • Established joint venture, P.T. Denyo Indonesia (currently P.T. Dein Prima Generator)
  • April 1976
    • Completed construction on Fukui plant
  • February 1983
    • Denyo was listed on Second Section of the Tokyo Stock Exchange
  • December 1992
    • Established U.S. subsidiary, Denyo America Corporation
  • August 1995
    • Established joint venture, Denyo Manufacturing Corporation in U.S.A.
  • December 1997
    • Received ISO 9001 certification for Fukui plant
  • March 2000
    • Listed on the First Section of the Tokyo Stock Exchange
  • July 2000
    • Established Singapore subsidiary, Denyo Asia Pte. Ltd.
  • December 2006
    • Denyo moved to Nihonbashi-horidomecho
  • June 2007
    • Acquisition of Nishinihon Generator Mfg. Co., Ltd. (currently Nishihatsu Co., Ltd. ) as subsidiary
  • October 2007
    • Established subsidiary, Denyo Europe B.V. in the Netherlands
  • July 2009
    • Absorption-type merger of Denyo techno Service Co., Ltd. and Denyo Trading Co., Ltd.
  • May 2010
    • Established subsidiary, Denyo Vietnam Co., Ltd.
  • March 2013
    • Established Laboratory & Training Center in Sakado city, Saitama
  • February 2015
    • Began to manufacture engine-driven generators, with the completion of the second factory in Denyo Vietnam Co., Ltd.
  • February 2020
    • Established subsidiary, Denyo Trading Vietnam Co., Ltd.

Denyo Group Subsidiaries & Affiliates

Denyo Kosan Co., Ltd. (Japan)

Nishihatsu Co., Ltd.      (Japan)

New Japan Machinery Corporation (Japan)

Denyo Manufacturing Corporation (USA)

Denyo America Corporation (USA)

P.T. Dein Prima Generator (Indonesia)

Denyo Vietnam Co.,Ltd. (Vietnam)

Denyo United Machinery Pte. Ltd. (Singapore)

Denyo Asia Pte. Ltd. (Singapore)

Denyo Europe B.V. (The Netherlands)

Download The Latest DENYO GENERATORS Product Catalog ver. 1

Download The Latest DENYO AIR COMPRESSORS Product Catalog ver. 1

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