Hamamatsu Photonics

As of 2026-10-09, Hamamatsu Photonics has 3 tracked suppliers and 5 tracked customers in this dataset; its largest supplier by market cap is Broadcom. The supplier and customer lists here follow a shared pattern for this segment rather than being individually confirmed for Hamamatsu Photonics — see /methodology.

Sourced from 1 reference — Wikipedia — last verified .

Leading maker of photonic devices, sensors, and light sources.

Ticker
TSE: 6965
Headquarters
Japan
Revenue
$889M (FY2025) · -31.2% YoY
Net income
$90M
Operating margin
10.5%
Market position
leader
Value-chain segment
Photonics & Optics
Key products
Photomultiplier tubes (PMT), Silicon photodiodes and APDs, CMOS image sensors for scientific / medical, Infrared detectors and laser diodes, Light sources for lithography and inspection equipment

About Hamamatsu Photonics

Hamamatsu Photonics, headquartered in Japan, operates in the Photonics & Optics segment of the semiconductor & AI supply chain and is positioned as a market leader there. Its key products include Photomultiplier tubes (PMT), Silicon photodiodes and APDs, CMOS image sensors for scientific / medical, Infrared detectors and laser diodes, Light sources for lithography and inspection equipment. wafergraph maps 3 tracked suppliers and 5 tracked customers for Hamamatsu Photonics across the value chain. It has a supply-chain criticality score of 81/100, with 235 companies downstream of it.

Role in the chain

Hamamatsu Photonics is a market leader in Distribution & Misc (Photonics & Optics), headquartered in Japan. Leading maker of photonic devices, sensors, and light sources.

Diligence questions

  1. The dataset records 3 tracked suppliers for Hamamatsu Photonics. 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?
  2. 1 of Hamamatsu Photonics's tracked suppliers are a monopoly or leader (including Broadcom). Which of those are actually single-source for the process step you care about?
  3. The dataset names 5 tracked customers for Hamamatsu Photonics. How concentrated is demand among those names, and which of them have a documented second source in this graph?
  4. Hamamatsu Photonics is positioned as a leader in Distribution & Misc. How replaceable is this vendor on the process step you are buying?
  5. Hamamatsu Photonics 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?
  6. Hamamatsu Photonics trades as TSE:6965. What does the latest reported period say about capacity and backlog versus the graph position above?

Full diligence pack for Hamamatsu Photonics

Key products

  • Photomultiplier tubes (PMT)
  • Silicon photodiodes and APDs
  • CMOS image sensors for scientific / medical
  • Infrared detectors and laser diodes
  • Light sources for lithography and inspection equipment

Suppliers

Customers

More Distribution & Misc companies

Compare with

InnoLight Technology · Lumentum Holdings · Eoptolink Technology · Ciena · Coherent · Nokia

Sources

Open the interactive supply-chain view →

Cite as: wafergraph, “Hamamatsu Photonics — supply chain, financials & market position”, https://wafergraph.com/company/hamamatsu (data as of 2026-10-09).

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