- CEO
- Masayoshi Matsumoto
- Full Time Employees
- 302,972
- Sector
- Producer manufacturing
- Industry
- Auto parts: OEM
- Address
- Sumitomo Building Osaka OS Japan 541-0041
- IPO Date
- May 16, 1949
- Business
- Sumitomo Electric Industries, Ltd. (5802.T) manufactures and sells a diverse range of wire, cable and connectivity products; automotive components including wire harnesses, anti-vibration rubber and hoses; optical fibers, cables, connectors and fusion splicers for telecommunications; electronic components such as flexible printed circuits, compound semiconductors and heat-shrinkable tubing; power cables, trolley wires and magnet wires for energy infrastructure; and industrial materials encompassing copper wire rods, fine polymers and precision resin products. The company operates across five principal segments--Automotive, Infocommunications, Electronics, Environment & Energy, and Industrial Materials & Others--serving infrastructure, mobility, ICT and advanced manufacturing sectors with products supporting data centers, FTTx solutions, power systems, EV batteries and intelligent transportation systems. Sumitomo Electric maintains a global footprint with over 400 subsidiaries and affiliates in more than 40 countries, including operations in Japan, the United States, Europe, Asia and a new power cable manufacturing facility under development in the Scottish Highlands to bolster offshore wind supply chains. Founded in April 1897 and headquartered at 4-5-33 Kitahama, Chuo-ku, Osaka, Japan, the company reported consolidated net sales of 4,679,789 million yen for the fiscal year ended March 2025. In recent strategic developments, Sumitomo Electric commenced a tender offer in October 2025 to acquire full ownership of long-standing subsidiary Sumitomo Riko Company Limited, enhancing synergies in CASE-related mobility products like integrated harness modules and EV components; transferred its shares in Sumitomo Densetsu Co., Ltd. to Daiwa House Industry Co., Ltd. while establishing a business alliance for ongoing collaboration; and in 2024 secured UK government-backed funding for a 350 million pound investment in Sumitomo Electric UK Power Cables Ltd.'s new Highland facility, its first cable plant in the western hemisphere; additionally, it acquired Esteves Group through subsidiary ALMT Corp. to expand wire drawing die leadership in EMEA and the Americas.