Company lists · Data refreshed September 2026
Top 25 Foundry semiconductor companies based in the United States
RevenueBase identified 91 foundry semiconductor companies headquartered in the United States as of September 2026 and tracks 12,204 professional contacts across them, including 2,862 with verified work emails. San Jose is the largest hub.
This list covers foundry semiconductor companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest foundry semiconductor companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,435 contacts → | ||||
Partial evidence “Amkor Technology, Inc.(Nasdaq: AMKR) is the world’s largest U.S-headquartered OSAT and is a global leader in outsourced semiconductor packaging and test services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 674 contacts → | ||||
Partial evidence “SkyWater (NASDAQ: SKYT) is a U.S-based semiconductor manufacturer and a DMEA-accredited Category 1A Trusted Supplier.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 579 contacts → | ||||
Partial evidence “Mattson Technology designs, manufactures, markets and supports semiconductor wafer processing equipment used in the fabrication of integrated circuits.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 510 contacts → | ||||
Strong evidence “TSMC Washington is an integrated circuit (IC) semiconductor foundry in the United States.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 450 contacts → | ||||
Partial evidence “Located in Bloomington, Minnesota, Polar Semiconductor, LLC has decades of experience in high-performance, automotive-grade semiconductor manufacturing.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 132 contacts → | ||||
Partial evidence “ISE Labs is a one-stop semiconductor engineering service provider.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 124 contacts → | ||||
Strong evidence “LA Semiconductor is a US-owned semiconductor foundry located in Pocatello, Idaho, that specializes in the fabrication of Analog, Mixed Signal, and Power products.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 116 contacts → | ||||
Partial evidence “The Texas Institute for Electronics (TIE) is accelerating the future of 3D microsystems and redefining what’s possible in semiconductor manufacturing.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 103 contacts → | ||||
Indirect evidence “GSME is a leading-edge global supplier of integrated-circuit design & manufacturing solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 96 contacts → | ||||
Indirect evidence “Magma Design Automation is now part of Synopsys Inc.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 83 contacts → | ||||
Strong evidence “ISO-certified compound semiconductor (GaAs, InP, GaN) foundry service provider that manufactures technology leading, high performance, high quality, semiconductor devices.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 72 contacts → | ||||
Partial evidence “Atomic Semi is building a small, fast semiconductor fab.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 70 contacts → | ||||
Partial evidence “Orion VLSI Technologies is a semiconductor house specializing in VLSI Design and Design Services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 67 contacts → | ||||
Indirect evidence “Analogport has expertise in Bulk CMOS, FDSOI, Finfet technologies all the way down to sub 5nm technologies.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 67 contacts → | ||||
Partial evidence “AXT designs, develops, manufactures and distributes high performance compound and single element semiconductor substrates comprising gallium arsenide, indium phosphide and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 66 contacts → | ||||
Partial evidence “NHanced Semiconductors is pioneering the future of advanced chip packaging.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 66 contacts → | ||||
Indirect evidence “With more than 5 years of successful on-time on-cost client deliveries, 20+ tape-outs including advanced nodes, 25+ global customers, and years of combined engineering experience…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 65 contacts → | ||||
Indirect evidence “asicNorth is an ASIC Design House and a Supply Chain manager in our 22nd year of business.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 34 contacts → | ||||
Partial evidence “eASIC® is a fabless semiconductor company offering breakthrough eASIC Platform™ devices that significantly reduce the overall cost of ownership and time to production of…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 29 contacts → | ||||
Strong evidence “Lawrence Semiconductor is a privately owned, U.S-based advanced semiconductor materials and specialty foundry company.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 27 contacts → | ||||
Partial evidence “For over 30 years, S-Cubed solutions have powered the semiconductor industry with our patented technologies and flexible equipment-built with efficiency and reliability in mind.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 22 contacts → | ||||
Partial evidence “Checkpoint Technologies, LLC is a semiconductors company based out of 66 Bonaventura Dr, San Jose, CA, United States.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 21 contacts → | ||||
Indirect evidence “OpenFive, an Alphawave IP company, your proven path from custom SoC architecture to volume silicon.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 20 contacts → | ||||
Indirect evidence “By leveraging our operational infrastructure, geographical locations and existing product base, Semitorr & netMercury have converged into a world class sales & service platform…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 20 contacts → | ||||
Partial evidence “Noel Technologies is a semiconductors company based out of 1510 Dell Ave # C, Campbell, California, United States.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: foundry semiconductor companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names foundry semiconductor companies.
- Partial evidence
- Its own public description names part of foundry semiconductor companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name foundry semiconductor companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 91 foundry semiconductor companies based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,862 reachable decision-makers.
Free signup · no credit card
Foundry semiconductor companies based in the United States at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 91 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among foundry semiconductor companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “foundry semiconductor companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names foundry semiconductor companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among foundry semiconductor companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 2,862 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names foundry semiconductor companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many foundry semiconductor companies are there based in the United States?
RevenueBase identified 91 foundry semiconductor companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Amkor Technology, INC, headquartered in Tempe, tops this list with the largest team on record.
Which city has the most foundry semiconductor companies?
San Jose leads with 7 headquartered companies, followed by Fremont (6) and Sunnyvale (6).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,862 verified decision-maker contacts tracked across these 91 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 91 foundry semiconductor companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Foundry semiconductor companies by geography
Browse the directory
Browse: Companies home · All United States lists · All Foundry semiconductor companies lists · New lists
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Foundry semiconductor companies based in India
- Foundry semiconductor companies based in Taiwan
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States