Sumitomo Electric U.S.A., Inc. (SEUSA) serves North American customers in various industries, including electric power, data communications, automotive, electronics manufacturing, medical devices, and more. An overview of our diverse portfolio of products is provided on this site for reference.

SEUSA was established in 1971 as the first North American subsidiary of Sumitomo Electric Industries. Our early activities contributed to the development of other subsidiaries, and today we are a part of a regional network of more than 40 companies affiliated with the Sumitomo Electric Group. SEUSA’s main offices are located in the Los Angeles metropolitan area and Silicon Valley.

• Heatsinks & heatspreaders
• Flexible printed circuits
• Ultra-high fiber count optical cables
• High-voltage DC cables
• Redox flow battery project
• Automotive interconnects

Locations

Code of Conduct

The Code of Conduct of Sumitomo Electric Industries (SEI) states the Company’s expectations that its employees conduct business in accordance with the Sumitomo Spirit and high ethical standards. We are committed to integrity and ethical business practices as we conduct business worldwide. For a copy of the Company’s Code of Conduct, please go to https://sumitomoelectric.com/csr/coc

The Company encourages employees and third parties to seek guidance or to report suspected violations of the Code, and the Company provides several avenues for reporting. One example is SEI’s Hotline, which allows for anonymous, confidential reporting maintained by an independent third party. For more information on the Company’s Hotline, please visit https://sumitomoelectric.com/compliance-hotlines