AT&S competitors

As of 2026-10-09, AT&S's closest competitors in Substrates are Ajinomoto, Corning Incorporated and Unimicron. wafergraph tracks 27 companies in Substrates; AT&S is positioned as a market major there with a market cap of $9.3B, and the largest competitor by market cap is Corning Incorporated at $131.7B.

See Corning Incorporated, AT&S' largest tracked competitor by market cap →

Data as of 2026-10-09 · peers = companies sharing AT&S's primary Substrates segment in the wafergraph taxonomy · ordered by market position, then market cap

Who competes with AT&S

1 more Substrates companies are listed on the segment page.

Customers AT&S shares with its competitors

  • Samsung Electronics shared with 9 of AT&S's top competitors
  • GlobalFoundries shared with 9 of AT&S's top competitors
  • TSMC shared with 8 of AT&S's top competitors
  • Intel shared with 8 of AT&S's top competitors
  • SK hynix shared with 8 of AT&S's top competitors
  • Micron Technology shared with 8 of AT&S's top competitors
  • SMIC shared with 8 of AT&S's top competitors
  • AMD shared with 5 of AT&S's top competitors
Frequently asked questions3
Who are AT&S's competitors?
AT&S's closest competitors in Substrates are Ajinomoto, Corning Incorporated and Unimicron; wafergraph tracks 26 rivals in that segment.
Who is AT&S's largest competitor?
Corning Incorporated is the largest Substrates competitor by market cap ($131.7B).
How many companies compete in Substrates?
wafergraph tracks 27 companies in Substrates, including AT&S.

Cite as: wafergraph, “AT&S competitors — 26 rivals in Substrates, compared”, https://wafergraph.com/competitors/ats (data as of 2026-10-09).

Open AT&S in the interactive supply-chain view →

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