SUMCO vs Wafer Works
Both are primarily Silicon Wafers companies. SUMCO is larger by market cap ($7.6B vs $2.5B).
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Side-by-side
| SUMCO | Wafer Works | |
|---|---|---|
| Market cap | $7.6B | $2.5B |
| Revenue | $2.1B (FY2025) | — |
| Primary segment | Silicon Wafers | Silicon Wafers |
| Market position | major | niche |
| Country | Japan | Taiwan |
| Tracked suppliers | 2 | 0 |
| Tracked customers | 8 | 10 |
| Chokepoint / criticality | 69/100 | 52/100 |
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 SUMCO and Wafer Works compare
- Size: SUMCO is the larger company by market cap.
- Supply-chain criticality: SUMCO has the higher chokepoint score (69/100 vs 52/100).
- Footprint: SUMCO (Japan) vs Wafer Works (Taiwan).
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Cite as: wafergraph, “SUMCO vs Wafer Works”, https://wafergraph.com/compare/sumco-vs-wafer_works (data as of 2026-10-09).
Frequently asked questions3
- Is SUMCO bigger than Wafer Works?
- SUMCO is larger by market cap ($7.6B vs $2.5B).
- What's the difference between SUMCO and Wafer Works?
- SUMCO is a major in Silicon Wafers based in Japan; Wafer Works is a niche in Silicon Wafers based in Taiwan. Both operate in the Materials segment.
- Who are SUMCO's and Wafer Works's suppliers?
- wafergraph tracks 2 suppliers for SUMCO and 0 for Wafer Works — SUMCO's include Wacker Chemie.