Siltronic vs SUMCO
Both are primarily Silicon Wafers companies. SUMCO is larger by market cap ($8.0B vs $3.1B). SUMCO reports higher tracked revenue ($2.1B vs $1.5B).
Shared segment: Materials.
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Side-by-side
| Siltronic | SUMCO | |
|---|---|---|
| Market cap | $3.1B | $8.0B |
| Revenue | $1.5B (FY2025) | $2.1B (FY2025) |
| Primary segment | Silicon Wafers | Silicon Wafers |
| Market position | major | major |
| Country | Germany | Japan |
| Tracked suppliers | 1 | 2 |
| Tracked customers | 8 | 8 |
| Chokepoint / criticality | 69/100 | 69/100 |
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 Siltronic and SUMCO compare
- Size: SUMCO is the larger company by market cap.
- Revenue: SUMCO reports higher tracked revenue.
- Supply-chain criticality: Both companies have the same chokepoint score (69/100).
- Footprint: Siltronic (Germany) vs SUMCO (Japan).
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Cite as: wafergraph, “Siltronic vs SUMCO”, https://wafergraph.com/compare/siltronic-vs-sumco (data as of 2026-10-04).
Frequently asked questions3
- Is Siltronic bigger than SUMCO?
- SUMCO is larger by market cap ($8.0B vs $3.1B).
- What's the difference between Siltronic and SUMCO?
- Siltronic is a major in Silicon Wafers based in Germany; SUMCO is a major in Silicon Wafers based in Japan. Both operate in the Materials segment.
- Who are Siltronic's and SUMCO's suppliers?
- wafergraph tracks 1 suppliers for Siltronic and 2 for SUMCO — Siltronic's include Wacker Chemie; SUMCO's include Wacker Chemie.