NGK

NGK Spark Plug Co., Ltd. (日本特殊陶業株式会社, Nippon Tokushu Tōgyō Kabushiki-gaisha^?) is a public company established in 1936 and based in Nagoya, Japan. NGK manufactures and sells spark plugs and related products for internal combustion engines, along with ceramics and applicable products.

As of March 2007^[update], the company employed 10,407 people, and operated a network of 7 liaison offices, 12 sales offices, 13 production sites and 2 technical centers worldwide. NGK Spark Plugs was founded as a spin-off of the spark plug division of NGK Insulators. Originally, NGK supplied most of its products to Japanese automakers. Today the company is the largest OEM sparkplug maker in the world.

NGK stands for Nippon (Japan) Gaishi (insulator) Kaisha (company).

NGK is a manufacturer of SOFC fuel cell micro combined heat and power units in the range 700W - 1 Kw.

Established in 1966 - NGK Spark Plugs (USA), Inc. was founded as a subsidiary of NGK Spark Plug Co, Ltd., of Japan. Its corporate headquarters was first located in California and then moved to its current location in Wixom, Michigan. The company produces spark plugs in Irvine, California, and produces both spark plugs and oxygen sensors in Sissonville, West Virginia.

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