KOYO SEIKO Co., Ltd was founded in 1921. It has been a leading machinery equipment manufacturer.

The company mission is:

To respect basic human rights in all activities and to use wisdom and creativity to provide products with superior value in order to contribute to the creation of a safer, more abundant society.

The company management stance is:
-Derive product ideas from the market and provide customers with the best in technology, quality, and service.
-Create new value, raise overall corporate value, and aim to create a more abundant society.
-Provide employees with motivating working and living conditions in order to enable the full potential of each to be realized.

Business field of machine tool is: center less grinders, surface grinders, special grinders, complex grinders, similar specialized equipment, and automatic assembly machines

Control system: In May 1999 Koyo Seiko Co., Ltd., obtained certification in ISO-14001, the international standard regarding environmental management systems, covering its bearing and steering R&D and manufacturing functions.
This certification applies to Koyo Seiko's Kokubu, Nara, Tokushima, Tokyo, Hiketa, Kameyama and Toyohashi plants and Miniature Bearing Project Division as well as all R&D and design departments. The certification method was single-system multisided certification. Koyo Seiko was the first of the world's bearing makers and one of the few companies in Japan of any type to receive certification by this method.