Superior Quality and Service

World Class Electrical Distribution Systems

Our Products

With wiring harnesses as our core product, we offer a variety of solutions to meet the demands of these rapidly changing times, including components for electric vehicles, hybrid car systems and electronics.

Wiring Harnesses

Cars are equipped with electronic components that go beyond basic functions like moving, turning, and stopping. These components perform an array of additional tasks and are the nervous system of a vehicle. Wiring harnesses are essential for managing these electronics, transmitting power and signals throughout the vehicle. They consist of connectors, terminals, clamps, sheaths and other elements that encase a core of electrical wires.

Electronics

Modern vehicles now rely heavily on electronic components to digitally control various functions. Key areas where electronics are utilized include the engine, transmission, suspension, brakes and steering.

Hybrid Electric Products

The evolution of wiring harnesses has been driven by the need for greater compactness, reduced weight and high-speed & large-volume communications. As the EV Market continues to develop, we are proud to offer an industry-leading range of products.

Connect with Innovation

More about Sumitomo Electric Group

Proven Technologies, 
Superior Products

There is power in a trusted brand. We at SEWS-E build our reputation on the values and ethics of this long established business.

With a turnover in excess of €1B and over 28,000 employees in Europe, SEWS-E are a part of Sumitomo Electric group and the Sumitomo family of companies. This 400 year old brand is synonymous with quality and reliability. In today’s automotive industry, SEWS-E products set the standard for excellence, while meeting and exceeding our customers’ expectation of quality, delivery and cost.

Delivering Technology and Innovation

SEWS-E works closely with our Japanese parents and sister companies, in developing state of the art materials, components, and technologies to help lead in our field.


The might of the Sumitomo Electric Group, ensures that capital investment in technological change, keeps us at the forefront of Automotive innovation.

Building on our Industrial Heritage

The Sumitomo business all started over 400 years ago with Japanese Copper Mining and smelting. Sumitomo were world leaders then and they remain so today.

Copper, still an important core element of today’s products, is only one on a modern portfolio materials which we have pioneered.

Quality, Cost, Service & Delivery

Never losing sight of what’s most important to our customers and shareholders.

Quality, Cost, Service and Delivery are the cornerstones of our business.

Our Locations

Sumitomo Electric Group Worldwide