GlobalWafers vs SUMCO

Both are primarily Silicon Wafers companies. GlobalWafers is larger by market cap ($17.9B vs $8.0B).

Shared segment: Materials.

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Side-by-side

GlobalWafersSUMCO
Market cap$17.9B$8.0B
Revenue—$2.1B (FY2025)
Primary segmentSilicon WafersSilicon Wafers
Market positionmajormajor
CountryTaiwanJapan
Tracked suppliers22
Tracked customers98
Chokepoint / criticality70/10069/100

Market caps/revenue from the wafergraph dataset · data as of 2026-10-04. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.

How GlobalWafers and SUMCO compare

  • Size: GlobalWafers is the larger company by market cap.
  • Supply-chain criticality: GlobalWafers has the higher chokepoint score (70/100 vs 69/100).
  • Footprint: GlobalWafers (Taiwan) vs SUMCO (Japan).

Company hubs

GlobalWafers · SUMCO · Materials segment

Open the interactive comparison tool →

Cite as: wafergraph, “GlobalWafers vs SUMCO”, https://wafergraph.com/compare/globalwafers-vs-sumco (data as of 2026-10-04).

Frequently asked questions3
Is GlobalWafers bigger than SUMCO?
GlobalWafers is larger by market cap ($17.9B vs $8.0B).
What's the difference between GlobalWafers and SUMCO?
GlobalWafers is a major in Silicon Wafers based in Taiwan; SUMCO is a major in Silicon Wafers based in Japan. Both operate in the Materials segment.
Who are GlobalWafers's and SUMCO's suppliers?
wafergraph tracks 2 suppliers for GlobalWafers and 2 for SUMCO — GlobalWafers's include Wacker Chemie; SUMCO's include Wacker Chemie.