SUMCO competitors
As of 2026-10-09, 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 $7.6B, and the largest competitor by market cap is Shin-Etsu Chemical at $69.8B.
Data as of 2026-10-09 · 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 | $69.8B | $16.3B | SUMCO vs Shin-Etsu Chemical |
| IQE | leader | United Kingdom | Unpriced | $129M | SUMCO vs IQE |
| GlobalWafers | major | Taiwan | $16.9B | — | SUMCO vs GlobalWafers |
| Wacker Chemie | major | Germany | $5.5B | $6.2B | SUMCO vs Wacker Chemie |
| Siltronic | major | Germany | $3.0B | $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 | $10.6B | $554M | SUMCO vs National Silicon Industry Group |
| Wolfspeed | challenger | United States | $1.6B | $468M | SUMCO vs Wolfspeed |
| Wafer Works | niche | Taiwan | $2.5B | — | 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
Frequently asked questions3
- Who are SUMCO's competitors?
- SUMCO's closest competitors in Silicon Wafers are Shin-Etsu Chemical, IQE and GlobalWafers; wafergraph tracks 12 rivals in that segment.
- Who is SUMCO's largest competitor?
- Shin-Etsu Chemical is the largest Silicon Wafers competitor by market cap ($69.8B).
- How many companies compete in Silicon Wafers?
- wafergraph tracks 13 companies in Silicon Wafers, including SUMCO.
Cite as: wafergraph, “SUMCO competitors — 12 rivals in Silicon Wafers, compared”, https://wafergraph.com/competitors/sumco (data as of 2026-10-09).
Open SUMCO in the interactive supply-chain view →
Track the chain
What moved in the semiconductor supply chain — This Week in the Chain, the free weekly wafergraph briefing.
Subscribe to the free weekly briefing →
Free · no login · 615 companies, updated weekly