SUMCO competitors
As of 2026-09-16, SUMCO's closest competitors in Silicon Wafers are Shin-Etsu Chemical, IQE and GlobalWafers. wafergraph tracks 13 companies in Silicon Wafers; SUMCO is positioned as a market major there with a market cap of $6.5B, and the largest competitor by market cap is Shin-Etsu Chemical at $67.4B.
Data as of 2026-09-16 · peers = companies sharing SUMCO's primary Silicon Wafers segment in the wafergraph taxonomy · ordered by market position, then market cap
Who competes with SUMCO
| Competitor | Position | Country | Market cap | Revenue | Compare |
|---|---|---|---|---|---|
| Shin-Etsu Chemical | leader | Japan | $67.4B | $16.5B | SUMCO vs Shin-Etsu Chemical |
| IQE | leader | United Kingdom | $730M | $130M | SUMCO vs IQE |
| GlobalWafers | major | Taiwan | $14.2B | — | SUMCO vs GlobalWafers |
| Wacker Chemie | major | Germany | $5.5B | $6.3B | SUMCO vs Wacker Chemie |
| Siltronic | major | Germany | $2.6B | $1.5B | SUMCO vs Siltronic |
| Tokuyama | major | Japan | $1.9B | $2.2B | SUMCO vs Tokuyama |
| SK Siltron | major | South Korea | Unpriced | — | — |
| TanKeBlue Semiconductor | major | China | Unpriced | — | — |
| National Silicon Industry Group | challenger | China | $11.8B | $555M | SUMCO vs National Silicon Industry Group |
| Wolfspeed | challenger | United States | $1.3B | $468M | SUMCO vs Wolfspeed |
| Wafer Works | niche | Taiwan | $2.2B | — | SUMCO vs Wafer Works |
| SemiQ Inc. | niche | United States | Unpriced | — | — |
Suppliers SUMCO shares with its competitors
A supplier shared across rivals is a segment-level chokepoint: if it fails, the whole peer group feels it at once.
Customers SUMCO shares with its competitors
Cite as: wafergraph, “SUMCO competitors — 12 rivals in Silicon Wafers, compared”, https://wafergraph.com/competitors/sumco (data as of 2026-09-16).
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