Company lists · Data refreshed September 2026

Top 25 Semiconductor assembly companies worldwide

Name: Semiconductor assembly companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,358 companies tracked

RevenueBase identified 1,358 semiconductor assembly companies worldwide as of September 2026 and tracks 150,222 professional contacts across them, including 27,689 with verified work emails and 0 with mobile numbers. China is the largest market and Singapore the largest hub.

This list covers semiconductor assembly companies 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 assembly companies 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

1,358Companies

150,222Contacts tracked

27,689Verified emails

0Mobile numbers

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The 25 largest semiconductor assembly companies worldwide

Ranked by team size

Top 25 of 1,358 semiconductor assembly companies worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to semiconductor assembly 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.
#	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	Globalfoundries	Partial evidence	Malta, NY, United StatesHQ checked Sep 17, 2026	10001+	13,067 contacts →
	Partial evidence “GlobalFoundries (GF) is a leading manufacturer of essential semiconductors, enabling AI at scale from the cloud to the physical world.” 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	NXP Acquires Freescale Semiconductor	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	10001+	5,179 contacts →
	Partial evidence “Freeascale, Inc has been acquired by NXP Semiconductors.” Source: RevenueBase Database · checked Sep 17, 2026
5	Qorvo, INC	Partial evidence	Greensboro, United StatesHQ checked Sep 17, 2026	5,001-10,000	4,469 contacts →
	Partial evidence “Qorvo (Nasdaq: QRVO) supplies innovative semiconductor solutions that make a better world possible.” Source: RevenueBase Database · checked Sep 17, 2026
6	Maxim Integrated	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 17, 2026	5,001-10,000	4,110 contacts →
	Indirect evidence “Maxim Integrated is now officially part of Analog Devices.” Source: RevenueBase Database · checked Sep 17, 2026
7	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
8	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
9	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
10	Realtek Semiconductor Corp	Indirect evidence	Hsinchu, TaiwanHQ checked Sep 17, 2026	5,001-10,000	2,310 contacts →
	Indirect evidence “Through strength, persistence, and adaptability, Realtek follows in the spirit of the crab.” Source: RevenueBase Database · checked Sep 17, 2026
11	Ultra Clean Technology	Partial evidence	Hayward, CA, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,287 contacts →
	Partial evidence “UltraClean Holdings, Inc.(UCT) is a global leader in semiconductor fabrication support.” Source: RevenueBase Database · checked Sep 17, 2026
12	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
13	Cypress Semiconductor Corporation	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,011 contacts →
	Indirect evidence “Please consider following the page of Infineon - as we are now Infineon -).” Source: RevenueBase Database · checked Sep 17, 2026
14	Kulicke & Soffa	Strong evidence	SingaporeHQ checked Sep 17, 2026	1,001-5,000	1,710 contacts →
	Strong 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
15	Soitec	Partial evidence	Bernin, FranceHQ checked Sep 17, 2026	1,001-5,000	1,687 contacts →
	Partial evidence “Soitec (Euronext - Tech 40 Paris), designs and manufactures highly advanced semiconductor materials that offer a significant performance edge over microchips based on generic…” Source: RevenueBase Database · checked Sep 17, 2026
16	UTAC	Partial evidence	SingaporeHQ checked Sep 17, 2026	10001+	1,613 contacts →
	Partial 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
17	Universal Scientific Industrial Co., LTD	Indirect evidence	Tsaotuen, MexicoHQ checked Sep 17, 2026	10001+	1,601 contacts →
	Indirect evidence “About USI (SSE: 601231) USI, Universal Scientific Industrial (Shanghai) Co, Ltd, is a global leader in electronic design and manufacturing as well as a leader in the field of SiP…” Source: RevenueBase Database · checked Sep 17, 2026
18	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
19	Axcelis Technologies	Indirect evidence	Beverly, MA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,288 contacts →
	Indirect evidence “Axcelis Technologies, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
20	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
21	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
22	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
23	Unisem	Strong evidence	Kuala Lumpur, MalaysiaHQ checked Sep 17, 2026	5,001-10,000	1,109 contacts →
	Strong 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
24	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
25	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

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 assembly 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 semiconductor assembly companies.
Partial evidence: Its own public description names part of semiconductor assembly companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name semiconductor assembly 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 1,358 semiconductor assembly companies worldwide

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Semiconductor assembly companies worldwide at a glance

As of Sep 17, 2026

18.4%Verified-email coverage

110.6Average contacts per company

11-50Median size (employees)

3.8%Largest-city concentration · Singapore

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

333

11-50

389

51-200

273

201-500

139

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 assembly 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.
Coverage: 10 countries, largest first: China, the United States, India, Taiwan, Japan, Singapore, Malaysia, Germany, the United Kingdom, France. Country and city lists for semiconductor assembly companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “semiconductor assembly 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 semiconductor assembly 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 semiconductor assembly companies, 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, 27,689 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 assembly companies by location

10 lists · largest first

Every Semiconductor assembly companies 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 semiconductor assembly 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 semiconductor assembly companies are there worldwide?

RevenueBase identified 1,358 semiconductor assembly companies 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 assembly companies?

China leads with 511 companies, followed by the United States (339) and India (136). Every semiconductor assembly companies list by country and city is linked on this page.

Which city has the most semiconductor assembly companies?

Singapore leads with 52 headquartered companies, followed by Shenzhen (42) and Bangalore (32).

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 27,689 verified decision-maker contacts tracked across these 1,358 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.