Driven By Our Core Values

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New Technologies for
Electric & Hybrid Vehicles

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Electronic Components That
Command Vehicle Functions

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Products That Deliver

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Better People,
Better Manufacturing

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A Corporate Partner with Society

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Connecting the Future of Automobiles
with Safety, Comfort, and the Environment

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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.

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

Developing new technologies and understanding efficient design  principles have enabled Sumitomo Electric Wiring Systems to design, develop, and manufacture products the automotive industry wants.

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Our locations serve automotive OEMs throughout North America.