Company lists · Data refreshed September 2026
Top 25 Semiconductor wafer manufacturers based in the United States
RevenueBase identified 133 semiconductor wafer manufacturers headquartered in the United States as of September 2026 and tracks 29,693 professional contacts across them, including 12,603 with verified work emails. Fremont is the largest hub.
This list covers semiconductor wafer manufacturers 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 17, 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 semiconductor wafer manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,672 contacts → | ||||
Indirect evidence “KLA develops industry-leading equipment and services that enable innovation throughout the electronics industry.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,812 contacts → | ||||
Strong evidence “Since its founding in 1963, TEL has grown to encompass many offices around the world that engineer, manufacture, sell, and service wafer-processing or semiconductor production…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,287 contacts → | ||||
Partial evidence “UltraClean Holdings, Inc.(UCT) is a global leader in semiconductor fabrication support.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,011 contacts → | ||||
Indirect evidence “Please consider following the page of Infineon - as we are now Infineon -).” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,186 contacts → | ||||
Partial evidence “Onto Innovation is a leader in process control, combining global scale with an expanded portfolio of leading-edge technologies that include: Un-patterned wafer quality; 3D…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 6 | 693 contacts → | ||||
Strong evidence “SunEdison Semiconductor's silicon wafers are the foundation for intelligent electronics in devices such as computers, smart phones, TVs, gaming devices, music players, appliances…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 674 contacts → | ||||
Strong evidence “SkyWater (NASDAQ: SKYT) is a U.S-based semiconductor manufacturer and a DMEA-accredited Category 1A Trusted Supplier.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 654 contacts → | ||||
Partial evidence “GTAT is a producer of high-quality crystal materials for applications as diverse as advanced semiconductors, high-energy lasers, and aerospace/defense windows.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 579 contacts → | ||||
Strong evidence “Mattson Technology designs, manufactures, markets and supports semiconductor wafer processing equipment used in the fabrication of integrated circuits.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 10 | 512 contacts → | ||||
Partial evidence “A Lam Research Company, providing precision silicon components powering global semiconductor innovation.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 510 contacts → | ||||
Partial evidence “TSMC Washington is an integrated circuit (IC) semiconductor foundry in the United States.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 493 contacts → | ||||
Partial evidence “SEH America is part of the largest producer of semiconductor silicon in the world, Shin-Etsu Handotai (SEH), Ltd, headquartered in Tokyo, and is an integral part of the ShinEtsu…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 307 contacts → | ||||
Strong evidence “Delivering Quality Solutions through Bold Innovation CMC Materials (NASDAQ: CCMP) is a global supplier of critical materials to semiconductor manufacturers and pipeline operators.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 15 | 280 contacts → | ||||
Indirect evidence “With the acquisition of R&D Altanova by Advantest, I am pleased I am now part of Advantest Interconnect Solutions (AIS).” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 16 | 236 contacts → | ||||
Partial evidence “MEMC is a global leader in producing advanced semiconductor materials for the electronics industry with leading-edge design and manufacturing.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 217 contacts → | ||||
Partial evidence “Our mission: to deliver secure, reliable, state-of-the-art semiconductors and semiconductor services with unwavering integrity.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 181 contacts → | ||||
Indirect evidence “ULVAC Technologies, Inc.(ISO 9001:2008) was established in 1992 as the US subsidiary of ULVAC, Inc.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 19 | 107 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 99 contacts → | ||||
Indirect evidence “Cohu is a publicly-traded (NASDAQ: COHU) global company with headquarters in Poway, CA in San Diego County.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 21 | 97 contacts → | ||||
Partial evidence “GlobalWafers America is at the forefront of silicon wafer manufacturing, setting new standards in the industry with our state-of-the-art facility in Sherman, Texas.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 91 contacts → | ||||
Partial evidence “Pure Wafer is the largest U.S.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 75 contacts → | ||||
Indirect evidence “NOTE: This page will be shutting down effective 7/1.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 25 | 70 contacts → | ||||
Indirect evidence “Founded in 1998 in Silicon Valley, ACM Research, Inc.” Source: RevenueBase Database · checked Sep 17, 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: semiconductor wafer manufacturers. 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 semiconductor wafer manufacturers.
- Partial evidence
- Its own public description names part of semiconductor wafer manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name semiconductor wafer manufacturers. 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 133 semiconductor wafer manufacturers based in the United States
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Semiconductor wafer manufacturers based in the United States at a glance
As of Sep 17, 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 133 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 semiconductor wafer manufacturers, 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 “semiconductor wafer manufacturers”. 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 semiconductor wafer manufacturers), 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 semiconductor wafer manufacturers, 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, 12,603 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 17, 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 semiconductor wafer manufacturers, 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 semiconductor wafer manufacturers are there based in the United States?
RevenueBase identified 133 semiconductor wafer manufacturers 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?
KLA, headquartered in Milpitas, tops this list with the largest team on record.
Which city has the most semiconductor wafer manufacturers?
Fremont leads with 7 headquartered companies, followed by San Jose (7) and Sunnyvale (4).
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 12,603 verified decision-maker contacts tracked across these 133 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 17, 2026.
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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.
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