United Microelectronics (UMC) vs Win Semiconductors

Both are primarily Pure-Play Foundry companies. United Microelectronics (UMC) is larger by market cap ($57.2B vs $7.7B). United Microelectronics (UMC) reports higher tracked revenue ($7.1B vs $523M).

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Side-by-side

United Microelectronics (UMC)Win Semiconductors
Market cap$57.2B$7.7B
Revenue$7.1B (FY2024)$523M (FY2025)
Primary segmentPure-Play FoundryPure-Play Foundry
Market positionmajorleader
CountryTaiwanTaiwan
Tracked suppliers242
Tracked customers159
Chokepoint / criticality69/10081/100

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 United Microelectronics (UMC) and Win Semiconductors compare

  • Size: United Microelectronics (UMC) is the larger company by market cap.
  • Revenue: United Microelectronics (UMC) reports higher tracked revenue.
  • Supply-chain criticality: Win Semiconductors has the higher chokepoint score (81/100 vs 69/100).
  • Footprint: United Microelectronics (UMC) (Taiwan) vs Win Semiconductors (Taiwan).

Company hubs

United Microelectronics (UMC) · Win Semiconductors · Foundry segment

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Cite as: wafergraph, “United Microelectronics (UMC) vs Win Semiconductors”, https://wafergraph.com/compare/umc-vs-win_semi (data as of 2026-10-09).

Frequently asked questions3
Is United Microelectronics (UMC) bigger than Win Semiconductors?
United Microelectronics (UMC) is larger by market cap ($57.2B vs $7.7B).
What's the difference between United Microelectronics (UMC) and Win Semiconductors?
United Microelectronics (UMC) is a major in Pure-Play Foundry based in Taiwan; Win Semiconductors is a leader in Pure-Play Foundry based in Taiwan. Both operate in the Foundry segment.
Who are United Microelectronics (UMC)'s and Win Semiconductors's suppliers?
wafergraph tracks 24 suppliers for United Microelectronics (UMC) and 2 for Win Semiconductors — United Microelectronics (UMC)'s include Shin-Etsu Chemical, SUMCO, GlobalWafers.