Company lists · Data refreshed September 2026
Top 25 Wafer fabrication plants worldwide
RevenueBase identified 107 wafer fabrication plants worldwide as of September 2026 and tracks 41,666 professional contacts across them, including 7,074 with verified work emails and 0 with mobile numbers. The United States is the largest market and Fremont the largest hub.
This list covers wafer fabrication plants worldwide, 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 19, 2026. Country and city lists for wafer fabrication plants follow the table.
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 wafer fabrication plants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 19,251 contacts → | ||||
Indirect evidence “Established in 1987, TSMC is the world's first dedicated semiconductor foundry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,554 contacts → | ||||
Indirect evidence “United Microelectronics Corporation (NYSE: UMC, TWSE: 2303) is a leading global semiconductor foundry with over four decades of innovation powering everyday technologies that…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,293 contacts → | ||||
Indirect evidence “ASE (Advanced Semiconductor Engineering, Inc), a member of ASE Technology Holdings (NYSE:ASX) is one of the world's largest providers of outsourced semiconductor manufacturing…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,812 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,287 contacts → | ||||
Partial evidence “UltraClean Holdings, Inc.(UCT) is a global leader in semiconductor fabrication support.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 2,011 contacts → | ||||
Indirect evidence “Please consider following the page of Infineon - as we are now Infineon -).” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,049 contacts → | ||||
Indirect evidence “Vanguard International Semiconductor Corporation (VIS) is a leading specialty IC foundry service provider.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 693 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 656 contacts → | ||||
Partial evidence “King Yuan Electronics Corp.(KYEC) provides wafer probing, final product test and assembly service for the semiconductor backend supply chain.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 510 contacts → | ||||
Indirect evidence “TSMC Washington is an integrated circuit (IC) semiconductor foundry in the United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 496 contacts → | ||||
Indirect evidence “Chipbond was established in 1997 July 2nd and was booked on the Taiwan Stock Exchange starting from 2002 January 31st.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 450 contacts → | ||||
Indirect evidence “Located in Bloomington, Minnesota, Polar Semiconductor, LLC has decades of experience in high-performance, automotive-grade semiconductor manufacturing.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 167 contacts → | ||||
Strong evidence “Jireh Semiconductor is the wafer fabrication facility of Alpha and Omega Semiconductor in Hillsboro, OR.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 140 contacts → | ||||
Indirect evidence “The predecessor of GlobalWafers was the Semiconductor Business of SAS (Sino-American Silicon Products Inc), founded in Hsinchu Science and Industrial Park, 1981.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 132 contacts → | ||||
Indirect evidence “ISE Labs is a one-stop semiconductor engineering service provider.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 124 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 123 contacts → | ||||
Partial evidence “Since established in 1997, Wafer Works (WWX) has developed to be a world-class silicon wafer supplier in the semiconductor industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 107 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 103 contacts → | ||||
Indirect evidence “GSME is a leading-edge global supplier of integrated-circuit design & manufacturing solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 95 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 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 19, 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: wafer fabrication plants. 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 wafer fabrication plants.
- Partial evidence
- Its own public description names part of wafer fabrication plants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name wafer fabrication plants. 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 107 wafer fabrication plants worldwide
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 7,074 reachable decision-makers.
Free signup · no credit card
Wafer fabrication plants worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 wafer fabrication plants, 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.
- Coverage
- 2 countries, largest first: the United States, Taiwan. Country and city lists for wafer fabrication plants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “wafer fabrication plants”. 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 wafer fabrication plants), 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 wafer fabrication plants, and records with no verified work email.
- 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, 7,074 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 19, 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.
Wafer fabrication plants by location
2 lists · largest firstEvery Wafer fabrication plants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 wafer fabrication plants, 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 wafer fabrication plants are there worldwide?
RevenueBase identified 107 wafer fabrication plants worldwide 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?
TSMC, headquartered in Hsinchu, tops this list with the largest team on record.
Which country has the most wafer fabrication plants?
The United States leads with 77 companies, followed by Taiwan (30). Every wafer fabrication plants list by country and city is linked on this page.
Which city has the most wafer fabrication plants?
Fremont leads with 7 headquartered companies, followed by San Jose (5) and Hsinchu (3).
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 7,074 verified decision-maker contacts tracked across these 107 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 107 wafer fabrication plants worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
Browse: Companies home · Lists by location · 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.