Hamamatsu Photonics vs Lumentum Holdings

Both are primarily Photonics & Optics companies. Lumentum Holdings is larger by market cap ($95.0B vs $4.4B). Lumentum Holdings reports higher tracked revenue ($3.0B vs $889M).

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Side-by-side

Hamamatsu PhotonicsLumentum Holdings
Market cap$4.4B$95.0B
Revenue$889M (FY2025)$3.0B (FY2026)
Primary segmentPhotonics & OpticsPhotonics & Optics
Market positionleadermajor
CountryJapanUnited States
Tracked suppliers34
Tracked customers522
Chokepoint / criticality81/10068/100

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 Hamamatsu Photonics and Lumentum Holdings compare

  • Size: Lumentum Holdings is the larger company by market cap.
  • Revenue: Lumentum Holdings reports higher tracked revenue.
  • Supply-chain criticality: Hamamatsu Photonics has the higher chokepoint score (81/100 vs 68/100).
  • Footprint: Hamamatsu Photonics (Japan) vs Lumentum Holdings (United States).

Company hubs

Hamamatsu Photonics · Lumentum Holdings · Distribution & Misc segment

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Cite as: wafergraph, “Hamamatsu Photonics vs Lumentum Holdings”, https://wafergraph.com/compare/hamamatsu-vs-lumentum (data as of 2026-10-09).

Frequently asked questions3
Is Hamamatsu Photonics bigger than Lumentum Holdings?
Lumentum Holdings is larger by market cap ($95.0B vs $4.4B).
What's the difference between Hamamatsu Photonics and Lumentum Holdings?
Hamamatsu Photonics is a leader in Photonics & Optics based in Japan; Lumentum Holdings is a major in Photonics & Optics based in United States. Both operate in the Distribution & Misc segment.
Who are Hamamatsu Photonics's and Lumentum Holdings's suppliers?
wafergraph tracks 3 suppliers for Hamamatsu Photonics and 4 for Lumentum Holdings; Lumentum Holdings's include Fabrinet, IQE, Coherent.