Sumitomo Electric Industries
Sumitomo Electric Industries is a major in the Distribution & Misc segment of the semiconductor & AI supply chain, headquartered in Osaka. Its key suppliers include Coherent, Lumentum Holdings, Broadcom. Its key customers include NVIDIA, Arista Networks, Cisco Systems.
Optical fiber, compound-semiconductor devices, and EV power modules.
- Ticker
- TSE: 5802
- Headquarters
- Osaka
- Founded
- 1897
- Employees
- 182,773
- Revenue
- $32.0B (FY2026) · +188.3% YoY
- Net income
- $2.3B
- Operating margin
- 7.3%
- Market position
- major
- Value-chain segment
- Photonics & Optics, Power Semiconductors (incl. SiC, GaN)
- Key products
- Gold and copper bonding wire for IC packaging, Optical fiber and cable systems, Compound semiconductor devices (GaAs, GaN), EV power modules and wiring harnesses, Superconductive wire and magnets
About Sumitomo Electric Industries
Sumitomo Electric Industries, headquartered in Japan, operates in the Photonics & Optics and Power Semiconductors (incl. SiC, GaN) segments of the semiconductor & AI supply chain and is positioned as a market major there. Its key products include Gold and copper bonding wire for IC packaging, Optical fiber and cable systems, Compound semiconductor devices (GaAs, GaN), EV power modules and wiring harnesses, Superconductive wire and magnets. wafergraph maps 3 tracked suppliers and 3 tracked customers for Sumitomo Electric Industries across the value chain. It has a supply-chain criticality score of 68/100, with 235 companies downstream of it.
Sumitomo Electric Industries, Ltd. is a manufacturer of electric wire and optical fiber cables. Its headquarters are in Chūō-ku, Osaka, Japan. The company's shares are listed in the first section of the Tokyo, Nagoya Stock Exchanges, and the Fukuoka Stock Exchange. In the period ending March 2021, the company reported consolidated sales of US$26,5 billion.
Role in the chain
Sumitomo Electric Industries is a market major in Distribution & Misc (Photonics & Optics), headquartered in Japan. Optical fiber, compound-semiconductor devices, and EV power modules.
Diligence questions
- The dataset records 3 tracked suppliers for Sumitomo Electric Industries. Which of those edges are researched (named in a filing or primary source) versus segment-inferred, and what happens if one of them stops shipping?
- 1 of Sumitomo Electric Industries's tracked suppliers are a monopoly or leader (including Broadcom). Which of those are actually single-source for the process step you care about?
- The dataset names 3 tracked customers for Sumitomo Electric Industries. How concentrated is demand among those names, and which of them have a documented second source in this graph?
- Sumitomo Electric Industries is headquartered in Japan. What jurisdiction, export-control or logistics risk sits at that HQ, versus at the fabs or plants the filings actually name?
- Sumitomo Electric Industries trades as TSE:5802. What does the latest reported period say about capacity and backlog versus the graph position above?
- Before treating any edge as a verified relationship, check the provenance labels on the company page and the method note at /methodology.
Key products
- Gold and copper bonding wire for IC packaging
- Optical fiber and cable systems
- Compound semiconductor devices (GaAs, GaN)
- EV power modules and wiring harnesses
- Superconductive wire and magnets
Suppliers
Customers
More Distribution & Misc companies
Compare with
Texas Instruments · InnoLight Technology · Corning Incorporated · Infineon Technologies · Eoptolink Technology · Lumentum Holdings
Sources
Open the interactive supply-chain view →
Cite as: wafergraph, “Sumitomo Electric Industries — supply chain, financials & market position”, https://wafergraph.com/company/sumitomo_electric (data as of 2026-09-05).
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