Company lists · Data refreshed September 2026

Top 25 Semiconductor fabrication services worldwide

Name: Semiconductor fabrication services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 759 companies tracked

RevenueBase identified 759 semiconductor fabrication services worldwide as of September 2026 and tracks 119,133 professional contacts across them, including 25,871 with verified work emails and 0 with mobile numbers. The United States is the largest market and Bangalore the largest hub.

This list covers semiconductor fabrication services 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 17, 2026. Country and city lists for semiconductor fabrication services 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

759Companies

119,133Contacts tracked

25,871Verified emails

0Mobile numbers

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The 25 largest semiconductor fabrication services worldwide

Ranked by team size

Top 25 of 759 semiconductor fabrication services worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to semiconductor fabrication services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	TSMC	Partial evidence	Hsinchu, TaiwanHQ checked Sep 17, 2026	10001+	19,251 contacts →
	Partial evidence “Established in 1987, TSMC is the world's first dedicated semiconductor foundry.” Source: RevenueBase Database · checked Sep 17, 2026
2	KLA	Indirect evidence	Milpitas, CA, United StatesHQ checked Sep 17, 2026	10001+	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, 2026
3	Amkor Technology, INC	Partial evidence	Tempe, AZ, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
4	United Microelectronics Corporation UMC	Partial evidence	Hsinchu, TaiwanHQ checked Sep 17, 2026	10001+	3,554 contacts →
	Partial 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 17, 2026
5	Zeiss Semiconductor Manufacturing Technology	Indirect evidence	Oberkochen, GermanyHQ checked Sep 17, 2026	5,001-10,000	3,506 contacts →
	Indirect evidence “Have you made a call with your mobile phone today?” Source: RevenueBase Database · checked Sep 17, 2026
6	ASE Global	Partial evidence	Kaohsiung, TaiwanHQ checked Sep 17, 2026	10001+	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 17, 2026
7	Tessolve	Indirect evidence	Bangalore, IndiaHQ checked Sep 17, 2026	1,001-5,000	2,888 contacts →
	Indirect evidence “Tessolve offers a unique combination of pre-silicon and post-silicon expertise to provide an efficient turnkey solution for silicon bring-up, and spec to the product.” Source: RevenueBase Database · checked Sep 17, 2026
8	Tokyo Electron US	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
9	Ultra Clean Technology	Strong evidence	Hayward, CA, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,287 contacts →
	Strong evidence “UltraClean Holdings, Inc.(UCT) is a global leader in semiconductor fabrication support.” Source: RevenueBase Database · checked Sep 17, 2026
10	Stats Chippac	Partial evidence	SingaporeHQ checked Sep 17, 2026	10001+	2,092 contacts →
	Partial evidence “STATS ChipPAC is the world’s leading semiconductor back-end manufacturing and technology services provider, offering a full range of turnkey services that include semiconductor…” Source: RevenueBase Database · checked Sep 17, 2026
11	Mirafra Technologies	Partial evidence	Bangalore, IndiaHQ checked Sep 17, 2026	1,001-5,000	1,731 contacts →
	Partial evidence “Mirafra Technologies is a leading Turnkey ASIC Solutions provider and Semiconductor Engineering Services company, helping global technology companies accelerate innovation through…” Source: RevenueBase Database · checked Sep 17, 2026
12	Kulicke & Soffa	Partial evidence	SingaporeHQ checked Sep 17, 2026	1,001-5,000	1,710 contacts →
	Partial evidence “Kulicke & Soffa is a global leader in semiconductor assembly technology, advancing device performance across automotive, compute, industrial, memory and communications markets.” Source: RevenueBase Database · checked Sep 17, 2026
13	UTAC	Indirect evidence	SingaporeHQ checked Sep 17, 2026	10001+	1,613 contacts →
	Indirect evidence “UTAC Holdings Ltd (“UTAC”) is a leading independent provider of assembly and test services for a broad range of integrated circuits with diversified end uses, including…” Source: RevenueBase Database · checked Sep 17, 2026
14	X-Fab	Partial evidence	Erfurt, GermanyHQ checked Sep 17, 2026	1,001-5,000	1,322 contacts →
	Partial evidence “X-FAB is a global foundry group providing a comprehensive set of specialty technologies and design IP to enable its customers to develop world-leading semiconductor products that…” Source: RevenueBase Database · checked Sep 17, 2026
15	Asmpt LTD	Partial evidence	SingaporeHQ checked Sep 17, 2026	10001+	1,253 contacts →
	Partial evidence “ASMPT is the leading global supplier of hardware and software solutions for semiconductor and electronics manufacturing.” Source: RevenueBase Database · checked Sep 17, 2026
16	Siltronic AG	Indirect evidence	München, GermanyHQ checked Sep 17, 2026	1,001-5,000	1,221 contacts →
	Indirect evidence “Siltronic AG is one of the world’s leading providers of high-tech wafer solutions made from hyperpure silicon and a recognized technology leader in the design and manufacturing of…” Source: RevenueBase Database · checked Sep 17, 2026
17	Spil 矽品	Indirect evidence	台中市, TaiwanHQ checked Sep 17, 2026	10001+	1,200 contacts →
	Indirect evidence “Established in May 1984, Siliconware Precision Industries Co, Ltd.” Source: RevenueBase Database · checked Sep 17, 2026
18	VEECO	Indirect evidence	Plainview, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,189 contacts →
	Indirect evidence “Making a Material Difference is at the core of our DNA.” Source: RevenueBase Database · checked Sep 17, 2026
19	Unisem	Partial evidence	Kuala Lumpur, MalaysiaHQ checked Sep 17, 2026	5,001-10,000	1,109 contacts →
	Partial evidence “Unisem is a global provider of semiconductor assembly and test (OSAT) services for many of the world's most successful electronics companies.” Source: RevenueBase Database · checked Sep 17, 2026
20	Carsem	Partial evidence	Ipoh, MalaysiaHQ checked Sep 17, 2026	5,001-10,000	1,071 contacts →
	Partial evidence “Carsem is a leading provider of turnkey packaging and test services to the semiconductor industry, and offers one of the largest package and test portfolios in the world.” Source: RevenueBase Database · checked Sep 17, 2026
21	Vanguard International Semiconductor Corporation VIS	Partial evidence	Hsinchu, TaiwanHQ checked Sep 17, 2026	5,001-10,000	1,049 contacts →
	Partial evidence “Vanguard International Semiconductor Corporation (VIS) is a leading specialty IC foundry service provider.” Source: RevenueBase Database · checked Sep 17, 2026
22	Smartsoc Solutions PVT LTD	Indirect evidence	Bangalore, IndiaHQ checked Sep 17, 2026	1,001-5,000	913 contacts →
	Indirect evidence “SmartSoC Solutions is a global leader in providing engineering solutions that help organizations design, build, and deliver complex, silicon-enabled and intelligent products.” Source: RevenueBase Database · checked Sep 17, 2026
23	SUSS	Partial evidence	Garching / Munich, GermanyHQ checked Sep 17, 2026	1,001-5,000	823 contacts →
	Partial evidence “With more than 75 years of experience, SUSS is one of the world's leading manufacturers of equipment and process solutions for microstructuring in the semiconductor industry and…” Source: RevenueBase Database · checked Sep 17, 2026
24	Systems On Silicon Manufacturing Company PTE LTD Ssmc	Partial evidence	SingaporeHQ checked Sep 17, 2026	1,001-5,000	815 contacts →
	Partial evidence “SSMC is a Joint Venture of NXP B.V.(NXP) and Taiwan Semiconductor Manufacturing Company Ltd (TSMC).” Source: RevenueBase Database · checked Sep 17, 2026
25	Skywater Technology	Partial evidence	Bloomington, MN, United StatesHQ checked Sep 17, 2026	501-1,000	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 17, 2026

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 fabrication services. 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 fabrication services.
Partial evidence: Its own public description names part of semiconductor fabrication services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name semiconductor fabrication services. 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 759 semiconductor fabrication services worldwide

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Semiconductor fabrication services worldwide at a glance

As of Sep 17, 2026

21.7%Verified-email coverage

157.0Average contacts per company

11-50Median size (employees)

5.7%Largest-city concentration · Bangalore

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

205

11-50

218

51-200

153

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 fabrication services, 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: 8 countries, largest first: the United States, India, Taiwan, Singapore, Japan, Germany, the United Kingdom, Malaysia. Country and city lists for semiconductor fabrication services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “semiconductor fabrication services”. 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 fabrication services), 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 fabrication services, 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, 25,871 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.

Semiconductor fabrication services by location

11 lists · largest first

Every Semiconductor fabrication services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 fabrication services, 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 fabrication services are there worldwide?

RevenueBase identified 759 semiconductor fabrication services 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 semiconductor fabrication services?

The United States leads with 310 companies, followed by India (174) and Taiwan (63). Every semiconductor fabrication services list by country and city is linked on this page.

Which city has the most semiconductor fabrication services?

Bangalore leads with 43 headquartered companies, followed by Singapore (43) and Bengaluru (27).

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 25,871 verified decision-maker contacts tracked across these 759 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.