Amkor Technology vs Orient Semiconductor (OSE)

Both are primarily Outsourced Assembly & Test companies. Amkor Technology is larger by market cap ($12.7B vs $920M). Amkor Technology reports higher tracked revenue ($6.7B vs $525M).

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Side-by-side

Amkor TechnologyOrient Semiconductor (OSE)
Market cap$12.7B$920M
Revenue$6.7B (FY2025)$525M (FY2023)
Primary segmentOutsourced Assembly & TestOutsourced Assembly & Test
Market positionmajorniche
CountryUnited StatesTaiwan
Tracked suppliers160
Tracked customers66
Chokepoint / criticality68/10050/100

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 Orient Semiconductor (OSE) 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 Orient Semiconductor (OSE) (Taiwan).

Company hubs

Amkor Technology · Orient Semiconductor (OSE) · OSAT segment

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Cite as: wafergraph, “Amkor Technology vs Orient Semiconductor (OSE)”, https://wafergraph.com/compare/amkor-vs-ose (data as of 2026-10-09).

Frequently asked questions3
Is Amkor Technology bigger than Orient Semiconductor (OSE)?
Amkor Technology is larger by market cap ($12.7B vs $920M).
What's the difference between Amkor Technology and Orient Semiconductor (OSE)?
Amkor Technology is a major in Outsourced Assembly & Test based in United States; Orient Semiconductor (OSE) is a niche in Outsourced Assembly & Test based in Taiwan. Both operate in the OSAT segment.
Who are Amkor Technology's and Orient Semiconductor (OSE)'s suppliers?
wafergraph tracks 16 suppliers for Amkor Technology and 0 for Orient Semiconductor (OSE) — Amkor Technology's include Teradyne, DISCO, BE Semiconductor Industries.