Company lists · Data refreshed September 2026

Top 14 Foundry semiconductor companies based in Taiwan

RevenueBase identified 33 foundry semiconductor companies headquartered in Taiwan as of September 2026 and tracks 32,143 professional contacts across them, including 3,454 with verified work emails. Hsinchu is the largest hub.

This list covers foundry semiconductor companies headquartered in Taiwan, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
33Companies
32,143Contacts tracked
3,454Verified emails
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The 14 largest foundry semiconductor companies based in Taiwan

Ranked by team size
Top 14 of 33 foundry semiconductor companies based in Taiwan, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to foundry semiconductor companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceHsinchu, TaiwanHQ checked Sep 16, 202610001+19,251 contacts →

Strong evidence

“Established in 1987, TSMC is the world's first dedicated semiconductor foundry.”

Source: RevenueBase Database · checked Sep 16, 2026
2Strong evidenceHsinchu, TaiwanHQ checked Sep 16, 202610001+3,554 contacts →

Strong 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 16, 2026
3Partial evidenceKaohsiung, TaiwanHQ checked Sep 16, 202610001+3,293 contacts →

Partial 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 16, 2026
4Indirect evidence台中市, TaiwanHQ checked Sep 16, 202610001+1,200 contacts →

Indirect evidence

“Established in May 1984, Siliconware Precision Industries Co, Ltd.”

Source: RevenueBase Database · checked Sep 16, 2026
5Strong evidenceHsinchu, TaiwanHQ checked Sep 16, 20265,001-10,0001,049 contacts →

Strong evidence

“Vanguard International Semiconductor Corporation (VIS) is a leading specialty IC foundry service provider.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceHsinchu City, TaiwanHQ checked Sep 16, 2026501-1,000634 contacts →

Indirect evidence

“Faraday Technology Corporation (TWSE: 3035) is a leading fabless ASIC and silicon IP provider.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceHsinchu Science Park, TaiwanHQ checked Sep 16, 2026501-1,000532 contacts →

Indirect evidence

“GLOBAL UNICHIP CORP.(GUC) is a market leader in advanced ASIC (application-specific integrated circuit) services.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceR.O.C., TaiwanHQ checked Sep 16, 20261,001-5,000284 contacts →

Partial evidence

“Tong Hsing Electronic Industries Limited is a world leader in micro module foundry services.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceChutung Chen, TaiwanHQ checked Sep 16, 20261,001-5,000277 contacts →

Partial evidence

“1988(OSAT, Outsourced Semiconductor Assembly and Test Services)30 WLCSP)(Bump)(Flip Chip)(Window BGA wBGA)IC 200345388 115,1006(OSAT Group)202112 2023 2023RBA 2023- 2023TTQS 2023…”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceCity, TaiwanHQ checked Sep 16, 2026501-1,000252 contacts →

Partial evidence

“Alchip Technologies Ltd, founded in 2003 and headquartered in Taipei, Taiwan, is a leading global provider of silicon and design and production services for system companies…”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceHsinchu City, TaiwanHQ checked Sep 16, 2026501-1,00096 contacts →

Partial evidence

“STAr is the acronym for "Semiconductor Test Architects" and as in the name - we are the architects with leading technologies for semiconductor test solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceKaohsiung City, TaiwanHQ checked Sep 16, 202651-20095 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceHsinchu, TaiwanHQ checked Sep 16, 202611-5012 contacts →

Partial evidence

“We are creator of IoT SoC Design Foundry, pushing boundaries of Last Mile Turnkey Service, with a complete team and possess over 20 years of experiences in connectivity technology…”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceTaipei, TaiwanHQ checked Sep 16, 2026201-5002 contacts →

Indirect evidence

“Ampoc Far-East.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 14 of 33 foundry semiconductor companies based in Taiwan

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Foundry semiconductor companies based in Taiwan at a glance

As of Sep 16, 2026
10.7%Verified-email coverage
974.0Average contacts per company
501-1,000Median size (employees)
18.2%Largest-city concentration · Hsinchu
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
2
11-50
4
51-200
3
201-500
4
501-1,000
5
1,001-5,000
7
5,001-10,000
4
10001+
4

Email recency for this list is measured worldwide rather than for Taiwan, so it is reported there. Company counts and contact totals on this page are exact for Taiwan, over 33 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 Taiwan 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 Taiwan 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, 3,454 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 Taiwan?

RevenueBase identified 33 foundry semiconductor companies headquartered in Taiwan 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 city has the most foundry semiconductor companies?

Hsinchu leads with 6 headquartered companies, followed by City (2) and Hsinchu City (2).

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 3,454 verified decision-maker contacts tracked across these 33 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.

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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.