The SWS Group is expanding our business globally under our management philosophy based on the Sumitomo Spirit and the Sumitomo Wiring Systems Basic Principles.

Global Business in Wiring Harnesses for Automobiles

Sumitomo Wiring Systems was founded as an electrical wire manufacturer in 1917. Since then it has grown into a leading global company in wiring harnesses for automobiles. Active on the world stage, it has built a solid business foundation by clearly recognizing and adapting to changes over time and in the field, using technology cultivated through its experience with electrical wires.
Right now the auto industry is in the midst of a major paradigm shift involving factors ranging from changes in automobiles’ relationship with the environment and their role in people’s lives to responses to expanding markets in emerging nations. By consistently anticipating future changes and trends, we will push ahead with the development of new products and technologies—always with the customer’s perspective in mind—based on the "Technologies-Connect with the Best" that we have built up in our business in wiring harnesses for automobiles.


The Sumitomo Wiring System Group aims to become a "mega-supplier" with wiring harnesses as the core product, strengthening our collaboration by integrating the efforts of the Group, Sumitomo Electric Industries, and AutoNetworks Technologies. We are further working to achieve the aims of "22VISION",
a mid-term management plan with a final target year of fiscal 2022. SWS Group is jointly promoting three priority targets—"strengthening our manufacturing capabilities", "enhancing our strengths in development and proposals and accelerating commercialization of our products", and "improving our human resources and organizational capabilities". We will continue to combine the Group's strengths in moving ahead together and remaining connected over the next 100 years.

Connect with the Best

“Connect with the Best,” the SWS Group’s basic principle, is intended to convey our commitment to placing importance on all connections we are associated with, to building trust in these connections, and to establishing outstandingly strong relationships. In addition to the role of connection that our products and technologies play, we are determined to carry out business operations that connect to the future by further strengthening our connection with customers, people, communities, and the world from a market-oriented viewpoint.