AT&S vs Unimicron

Both are primarily Substrates companies. Unimicron is larger by market cap ($65.3B vs $9.3B). Unimicron reports higher tracked revenue ($4.1B vs $2.0B).

See all 105 Materials companies →

Track the chain

What moved in the semiconductor supply chain — This Week in the Chain, the free weekly wafergraph briefing.

Subscribe to the free weekly briefing →

Free · no login · 615 companies, updated weekly

Side-by-side

AT&SUnimicron
Market cap$9.3B$65.3B
Revenue$2.0B (FY2026)$4.1B (FY2025)
Primary segmentSubstratesSubstrates
Market positionmajorleader
CountryAustriaTaiwan
Tracked suppliers01
Tracked customers810
Chokepoint / criticality68/10081/100

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 AT&S and Unimicron compare

  • Size: Unimicron is the larger company by market cap.
  • Revenue: Unimicron reports higher tracked revenue.
  • Supply-chain criticality: Unimicron has the higher chokepoint score (81/100 vs 68/100).
  • Footprint: AT&S (Austria) vs Unimicron (Taiwan).

Company hubs

AT&S · Unimicron · Materials segment

Open the interactive comparison tool →

Cite as: wafergraph, “AT&S vs Unimicron”, https://wafergraph.com/compare/ats-vs-unimicron (data as of 2026-10-09).

Frequently asked questions3
Is AT&S bigger than Unimicron?
Unimicron is larger by market cap ($65.3B vs $9.3B).
What's the difference between AT&S and Unimicron?
AT&S is a major in Substrates based in Austria; Unimicron is a leader in Substrates based in Taiwan. Both operate in the Materials segment.
Who are AT&S's and Unimicron's suppliers?
wafergraph tracks 0 suppliers for AT&S and 1 for Unimicron; Unimicron's include Ajinomoto.