Amkor Technology vs ChipMOS Technologies
Both are primarily Outsourced Assembly & Test companies. Amkor Technology is larger by market cap ($12.7B vs $2.8B). Amkor Technology reports higher tracked revenue ($6.7B vs $753M).
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Side-by-side
| Amkor Technology | ChipMOS Technologies | |
|---|---|---|
| Market cap | $12.7B | $2.8B |
| Revenue | $6.7B (FY2025) | $753M (FY2025) |
| Primary segment | Outsourced Assembly & Test | Outsourced Assembly & Test |
| Market position | major | niche |
| Country | United States | Taiwan |
| Tracked suppliers | 16 | 2 |
| Tracked customers | 6 | 8 |
| Chokepoint / criticality | 68/100 | 50/100 |
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 Amkor Technology and ChipMOS Technologies compare
- Size: Amkor Technology is the larger company by market cap.
- Revenue: Amkor Technology reports higher tracked revenue.
- Supply-chain criticality: Amkor Technology has the higher chokepoint score (68/100 vs 50/100).
- Footprint: Amkor Technology (United States) vs ChipMOS Technologies (Taiwan).
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Cite as: wafergraph, “Amkor Technology vs ChipMOS Technologies”, https://wafergraph.com/compare/amkor-vs-chipmos (data as of 2026-10-09).
Frequently asked questions3
- Is Amkor Technology bigger than ChipMOS Technologies?
- Amkor Technology is larger by market cap ($12.7B vs $2.8B).
- What's the difference between Amkor Technology and ChipMOS Technologies?
- Amkor Technology is a major in Outsourced Assembly & Test based in United States; ChipMOS Technologies is a niche in Outsourced Assembly & Test based in Taiwan. Both operate in the OSAT segment.
- Who are Amkor Technology's and ChipMOS Technologies's suppliers?
- wafergraph tracks 16 suppliers for Amkor Technology and 2 for ChipMOS Technologies — Amkor Technology's include Teradyne, DISCO, BE Semiconductor Industries; ChipMOS Technologies's include Advantest, Kulicke & Soffa.