There is power in a trusted brand. We at Sumitomo Electric Wiring Systems (SEWS) build our reputation on this. We are a part of the Sumitomo family of companies, a 400 year old brand synonymous with quality and reliability. In today’s automotive industry, SEWS products set the standard of excellence while meeting and exceeding our customers’ expectation of quality, delivery, and cost.

Our locations serve automotive OEMs throughout North America.


See why our products are the finest in the automotive industry.