Koyo Seiko was founded in 1921 and in the following decades became one of the world's leading technology leaders in the production of bearings and automotive steering systems.

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The company owns and operates 30 plants in 14 countries and 6 centers for technical engineering research and development on 3 continents. Koyo offers innovative solutions to both equipment manufacturers and end customers in the aftermarket, focusing on key markets such as the automotive industry, agriculture and construction, heavy industry (metallurgy and wind turbines), the production of gearboxes, electric motors and general engineering .

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JTEKT Group has approximately 150 subsidiaries and 50,000 employees in over 30 countries and regions. JTEKT Group manufactures and sells power steering, for which it has the largest market share in the world, other automotive parts, bearings and metalworking machines.
Koyo is the brand of JTEKT Bearing Corporation. JTEKT's engineering and production capabilities range from super-large bearings with an outer diameter of up to seven meters to miniature bearings with an inner diameter of one millimeter. Covering the entire range of rolling bearings, Koyo is one of the world's leading manufacturers.