Lumentum Holdings vs Sumitomo Electric Industries

Both are primarily Photonics & Optics companies. Lumentum Holdings is larger by market cap ($95.0B vs $46.5B). Sumitomo Electric Industries reports higher tracked revenue ($32.4B vs $3.0B).

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Side-by-side

Lumentum HoldingsSumitomo Electric Industries
Market cap$95.0B$46.5B
Revenue$3.0B (FY2026)$32.4B (FY2026)
Primary segmentPhotonics & OpticsPhotonics & Optics
Market positionmajormajor
CountryUnited StatesJapan
Tracked suppliers43
Tracked customers223
Chokepoint / criticality68/10068/100

Market caps/revenue from the wafergraph dataset · data as of 2026-10-09. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.

How Lumentum Holdings and Sumitomo Electric Industries compare

  • Size: Lumentum Holdings is the larger company by market cap.
  • Revenue: Sumitomo Electric Industries reports higher tracked revenue.
  • Supply-chain criticality: Both companies have the same chokepoint score (68/100).
  • Footprint: Lumentum Holdings (United States) vs Sumitomo Electric Industries (Japan).

Company hubs

Lumentum Holdings · Sumitomo Electric Industries · Distribution & Misc segment

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Cite as: wafergraph, “Lumentum Holdings vs Sumitomo Electric Industries”, https://wafergraph.com/compare/lumentum-vs-sumitomo_electric (data as of 2026-10-09).

Frequently asked questions3
Is Lumentum Holdings bigger than Sumitomo Electric Industries?
Lumentum Holdings is larger by market cap ($95.0B vs $46.5B).
What's the difference between Lumentum Holdings and Sumitomo Electric Industries?
Lumentum Holdings is a major in Photonics & Optics based in United States; Sumitomo Electric Industries is a major in Photonics & Optics based in Japan. Both operate in the Distribution & Misc segment.
Who are Lumentum Holdings's and Sumitomo Electric Industries's suppliers?
wafergraph tracks 4 suppliers for Lumentum Holdings and 3 for Sumitomo Electric Industries — Lumentum Holdings's include Fabrinet, IQE, Coherent.