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Sumitomo Electric Group in the USA

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Overview of Group Companies in the USA

Automotive

SEWS building

Sumitomo Electric Wiring Systems, Inc.

One of the world's leading manufacturers of automotive wiring harnesses and harness components. Other products include high-voltage motor cables and electronic components such as center panels, electronic control units, and junction blocks. Headquarters: Bowling Green, Kentucky.
SWS-USA office 2024

Sumitomo Wiring Systems (USA), Inc.

Responsible for sales of high-quality connectors and terminals for automotive electrical distribution systems. SWS-USA also manufactures wiring harnesses for automotive suppliers. Headquarters: Farmington Hills, Michigan.
SumiRiko building

Sumitomo Riko America, Inc.

An affiliate of Sumitomo Electric that manufactures anti-vibration rubber products for automotive use. This includes engine mounts, body mounts, engine drivelines, exhaust isolation mountings, and body isolation parts. SRA also manufactures automotive hose products (high-pressure fuel hoses, filler neck hoses, vapor recovery tubes, etc.) and urethane sound reduction products. Headquarters: Novi, Michigan.

Infocommunications

San Jose office building

Sumitomo Electric Device Innovations U.S.A., Inc.

Specializes in the sales of optical transceivers and lasers for use in optical data communications networks in metropolitan areas or data centers. For wireless communications, sales of GaN and GaAs high-electron mobility transistors, GaAs field effect transistors, and MMIC power amplifiers. Headquarters: San Jose, California.
SEL building

Sumitomo Electric Lightwave Corp.

Serving the ever-growing demand for optical fiber infrastructure, SEL offers a wide variety of products: fiber optic ribbon cable, ultra-high fiber count cable, air-blown fiber cabling systems, fusion splicers, pre-terminated cable assemblies, high-density splice cabinets, and more. SEL also offers engineering services and product training. Headquarters: Raleigh, North Carolina.

Electronics

JUDD building

Judd Wire, Inc.

Design, manufacture, and sales of high-performance wire and cable for the automotive, aerospace, railway, and other industries. Specializes in the use of electron beam crosslinked thermosets for wire insulation to enhance product durability. Products offered in over 100 styles recognized by UL, CSA, or military standards. Headquarters: Turners Falls, Massachusetts.
SEIP building

Sumitomo Electric Interconnect Products, Inc.

Manufacture and sales of heat-shrinkable tubing for the automotive, aerospace, electronics manufacturing, transportation, and other industries. Also offers solder termination sleeves, marking systems for cable identification, and durable PTFE sealants and tapes. Headquarters: San Marcos, California.
SESMI building

Sumitomo Electric Semiconductor Materials, Inc.

Manufacture and sales of compound semiconductor substrates (GaAs, GaN, and InP wafers) for electronics manufacturing. These substrates are used in the production of optical communication devices, wireless communication devices, white LEDs, and many other end products. Headquarters: Hillsboro, Oregon.

Environment & Energy

SEUSA

Sumitomo Electric U.S.A., Inc.

Acting as a direct sales channel for the parent company in Japan, Sumitomo Electric USA introduces newly developed technologies to diverse markets in North America. The product portfolio includes power transmission cables for utility companies, optical fiber cables for the telecommunications industry, heatsinks for the industrial market, air springs for trains, and more. Headquarters: Torrance, California.
WIN-A building

Sumitomo Electric Wintec America, Inc.

Sales of various types of film-insulated copper magnet wire for automotive applications. Products are customized to the desired specifications of each customer. Headquarters: Edmonton, Kentucky.

Industrial Materials

KPMC building

Keystone Powdered Metal Company

Manufacture and sales of powdered metal parts for use in automotive powertrains, such as clutch components, sprockets, gears, gear carries, and bearings. KPMC also manufactures assemblies comprised of powdered metal and non-powdered metal parts. Headquarters: St. Marys, Pennsylvania
NIRE logo

Niagara Refining LLC

Manufacture of tungsten raw materials (high-purity tungsten oxide powder from tungsten ore and tungsten industrial scraps). This material is used by customers to manufacture finished tungsten products that are essential to modern life, such as machining tools and electrical contacts. Headquarters: Buffalo, New York
SCI building

Sumitomo Electric Carbide, Inc.

Sales of an enormous catalog of high-precision machine tools that includes turning tools, CBN/PCD cutting tools, drilling tools, milling tools, custom-engineered tools, and laser optics. Headquarters: Mount Prospect, Illinois.
SCM building

Sumitomo Electric Carbide Manufacturing, Inc.

Manufacture of carbide drills, CBN/PCD cutting tools, milling cutters, and special cutters. Headquarters: New Berlin, Wisconsin
SWPC building

Sumiden Wire Products Corporation

A leading manufacturer of prestressed concrete steel strand for the construction industry. SWPC also custom-manufactures stainless steel spring wire for diverse applications, as well as ultra-smooth stainless steel wire for use in medical devices. SWPC is an expert in electroplating nickel to carbon wire substrates for a bright finish and high ductility. Headquarters: Dickson, Tennessee. Also located in Stockton, California and Dayton, Texas.

Corporate

San Jose office building

Innovation Core SEI, Inc.

North American extension of Sumitomo Electric's R&D organization, focused on investigating new technologies in the areas of clean technology, infocommunications, semiconductors, and advanced materials. ICS sponsors research and collaborates with local tech companies. Headquarters: San Jose, California.
SEFUSA logo

Sumitomo Electric Finance U.S.A., Inc.

Manages financing for subsidiaries and affiliate companies. Located in New York City.

SEUHO logo

Sumitomo Electric U.S.A. Holdings, Inc.

Provides administrative services for subsidiaries and affiliate companies. Headquarters: New York City.

Learn more about Sumitomo Electric Group companies in other countries

Offices & Group Companies