Company Information

The leading company of wiring harnesses for automobiles.
The Sumitomo Wiring Systems group's manufacturing
is supported by the contributions of over 200,000 employees.

Company Overview

Global Network

Global development

32countries and regions

Divisions

105companies

Employees

238,272people

Sumitomo Wiring Systems Offices Facilities & Group/Affiliates Office

* As of June 2025