Sumitomo Electric Industries competitors

As of 2026-10-09, Sumitomo Electric Industries's closest competitors in Photonics & Optics are InnoLight Technology, Corning Incorporated and Hamamatsu Photonics. wafergraph tracks 24 companies in Photonics & Optics; Sumitomo Electric Industries is positioned as a market major there with a market cap of $46.5B, and the largest competitor by market cap is InnoLight Technology at $135.7B.

See InnoLight Technology, Sumitomo Electric Industries' largest tracked competitor by market cap →

Data as of 2026-10-09 · peers = companies sharing Sumitomo Electric Industries's primary Photonics & Optics segment in the wafergraph taxonomy · ordered by market position, then market cap

Who competes with Sumitomo Electric Industries

Suppliers Sumitomo Electric Industries shares with its competitors

  • Broadcom shared with 9 of Sumitomo Electric Industries's top competitors
  • Coherent shared with 8 of Sumitomo Electric Industries's top competitors
  • Lumentum Holdings shared with 8 of Sumitomo Electric Industries's top competitors

A supplier shared across rivals is a segment-level chokepoint: if it fails, the whole peer group feels it at once.

Customers Sumitomo Electric Industries shares with its competitors

  • NVIDIA shared with 9 of Sumitomo Electric Industries's top competitors
  • Arista Networks shared with 9 of Sumitomo Electric Industries's top competitors
  • Cisco Systems shared with 9 of Sumitomo Electric Industries's top competitors
Frequently asked questions3
Who are Sumitomo Electric Industries's competitors?
Sumitomo Electric Industries's closest competitors in Photonics & Optics are InnoLight Technology, Corning Incorporated and Hamamatsu Photonics; wafergraph tracks 23 rivals in that segment.
Who is Sumitomo Electric Industries's largest competitor?
InnoLight Technology is the largest Photonics & Optics competitor by market cap ($135.7B).
How many companies compete in Photonics & Optics?
wafergraph tracks 24 companies in Photonics & Optics, including Sumitomo Electric Industries.

Cite as: wafergraph, “Sumitomo Electric Industries competitors — 23 rivals in Photonics & Optics, compared”, https://wafergraph.com/competitors/sumitomo_electric (data as of 2026-10-09).

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