Silicon Wafers companies
As of 2026-10-04, wafergraph tracks 13 Silicon Wafers companies across 7 countries; Shin-Etsu Chemical, IQE hold monopoly or leader positions. The largest by market cap is Shin-Etsu Chemical at $69.3B, and the 9 priced companies total $121.7B.
Data as of 2026-10-04 · market caps from the daily wafergraph pipeline; unpriced companies are listed but not summed
13 companies in the Silicon Wafers part of the semiconductor & AI value chain.
Market share
Companies
- Shin-Etsu Chemical — World's largest silicon wafer maker and a major photoresist supplier.
- IQE — Leading epitaxial compound-semiconductor wafer maker (GaAs, GaN, InP).
- GlobalWafers — Third-largest silicon wafer maker; expanding US capacity in Texas.
- SUMCO — Second-largest silicon wafer producer, supplying all leading fabs.
- Wacker Chemie — Major polysilicon and silicone maker supplying semiconductor-grade silicon.
- Siltronic — Top-four silicon wafer producer headquartered in Munich.
- Tokuyama — Japanese chemical maker; semiconductor-grade polysilicon and fumed silica.
- SK Siltron — SK Group's wafer arm; key 300mm supplier to Korean memory fabs.
- TanKeBlue Semiconductor — Beijing pioneer of China's SiC substrate industry; a leading SiC monocrystalline substrate supplier.
- National Silicon Industry Group — China's largest 300mm silicon wafer maker (Zing Semiconductor).
- Wolfspeed — SiC wafer and device pure-play; restructured through Chapter 11 in 2025.
- Wafer Works — Taiwanese silicon wafer maker focused on prime and reclaim wafers.
- SemiQ Inc. — Lake Forest, CA maker of SiC power semiconductors and 150mm SiC epitaxial wafers for high-voltage uses.
Open the interactive Silicon Wafers view →
Cite as: wafergraph, “Silicon Wafers companies — list, suppliers & market position”, https://wafergraph.com/segment/materials/silicon_wafers/ (data as of 2026-10-04).
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