Sumitomo Electric Industries, Ltd.'s Company Profile and Products

Sumitomo Electric Industries, Ltd.

  • Japan
  • Founded: 1897
  • Number of Employees: 289,191
Sumitomo Electric Industries, Ltd. Website
Sumitomo Electric Industries, Ltd.

Table of Contents


Sumitomo Electric Industries, Ltd. (SEI) is a Japanese manufacturer of electric wires and optical fiber cables that was originally founded in 1897 as Sumitomo Copper Rolling Works before rebranding in 2015. Based in Chuo-ku, Osaka, the company produces various electric and electronic products including wires and cables for automotive onboard systems, optical fibers for data transmission, compound semiconductors used in electronics, and soft magnetic composites for low-speed rotors. Aside from its products, SEI also offers data center solutions and monitoring services, which improve safety and efficiency in customer-specific management and analytical systems.


Country Japan
Founded 1897
Number of Employees 289,191
Website Sumitomo Electric Industries, Ltd. Website


7 Sumitomo Electric Industries, Ltd.'s products are listed.


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