About DENYO

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.