ASE Technology Holding

Kaohsiung, Taiwan

Company Overview

Legal Name: ASE Technology Holding Co., Ltd.
Business Model: Pure-play OSAT
Headquarters: Kaohsiung, Taiwan
Website: https://www.aseglobal.com/
Description: Largest OSAT worldwide. 2024 revenue US$18.54B (+3% YoY), roughly 45% of top-ten OSAT revenue, per TrendForce. Group includes the packaging and test business (ASE), SPIL, and the USI electronic-manufacturing-services arm — the last of which is not OSAT work and is excluded from the scope of this record.

2 sources · verified Jul 31, 2026

What this company offers as a corporate portfolio. Recorded independently of which plant runs it — see each facility for site-level capability.

No packaging capabilities recorded for this record yet.

Test services offered at company level.

No test capabilities recorded for this record yet.

Unit operations the company runs. Distinct from packaging families above, which are the package types a customer orders.

No assembly processes recorded for this company yet.

Incoming substrate formats handled.

No wafer or panel formats recorded for this company yet.

Applications this company's output ships into.

No end markets recorded for this company yet.

Types of silicon packaged. Orthogonal to end markets — an MCU ships into automotive.

No device categories recorded for this company yet.

Corporate-level certifications. Many schemes are certified per site — see each facility for site-specific holdings.

No certifications recorded for this company yet.

Recorded at company level only: these are engineering-organisation capabilities rather than line equipment.

No design or engineering services recorded for this company yet.

Ties to foundry companies in the two foundry databases.

No foundry relationships recorded for this company yet.

Individual assembly and test sites. Facility capability is recorded separately and may differ from the corporate portfolio above.

No facilities recorded for this company yet.

Attribution for the company record itself. Capability rows carry their own sources, shown beside each one above.

Top 10 OSAT Companies of 2024 Revealed — China Players See Double-Digit Growth, Reshaping the Global Market Landscape
TrendForce. Analyst report. Secondary source.
Published May 13, 2025. Verified Jul 31, 2026. Attributes the description field.
Combined revenue of the world's top 10 OSAT companies reached US$41.56B in 2024, up 3% YoY.
Plants & Offices
ASE Technology Holding. Company website. Primary source.
Verified Jul 31, 2026. Attributes the headquarters_city field.