Company lists · Data refreshed October 2026

Top 25 Integrated circuit assembly services worldwide

RevenueBase identified 1,006 company matches for integrated circuit assembly services worldwide as of October 2026 and tracks 60,494 professional contacts across them, including 6,825 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers company matches for integrated circuit assembly services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 27, 2026. Country and city lists for integrated circuit assembly services follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 27, 2026 How this list was built
1,006Companies
60,494Contacts tracked
6,825Verified emails
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The 25 largest integrated circuit assembly services worldwide

Ranked by team size
Top 25 of 1,006 company matches for integrated circuit assembly services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchTempe, AZ, United StatesHQ recorded Oct 27, 202610001+7,003 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
2Exact matchKaohsiung, TaiwanHQ recorded Oct 27, 202610001+3,772 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
3Exact matchBangalore, IndiaHQ recorded Oct 27, 20261,001-5,0002,908 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
4Exact matchSingaporeHQ recorded Oct 27, 202610001+2,190 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
5Exact matchSingaporeHQ recorded Oct 27, 20261,001-5,0001,827 contacts →

Exact match

“Kulicke & Soffa is a global leader in semiconductor assembly technology, advancing device performance across automotive, compute, industrial, memory and communications markets.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
6Exact matchSingaporeHQ recorded Oct 27, 202610001+1,755 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
7Exact match台中市, TaiwanHQ recorded Oct 27, 202610001+1,694 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
8Exact matchKuala Lumpur, MalaysiaHQ recorded Oct 27, 20265,001-10,0001,239 contacts →

Exact match

“Unisem is a global provider of semiconductor assembly and test (OSAT) services for many of the world's most successful electronics companies.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
9Exact matchIpoh, MalaysiaHQ recorded Oct 27, 20265,001-10,0001,164 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
10Exact matchHsinchu, TaiwanHQ recorded Oct 27, 20265,001-10,0001,109 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
11Exact matchChu-nan, ChinaHQ recorded Oct 27, 20265,001-10,000739 contacts →

Exact match

“King Yuan Electronics Corp.(KYEC) provides wafer probing, final product test and assembly service for the semiconductor backend supply chain.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
12Exact matchCoimbatore, IndiaHQ recorded Oct 27, 2026501-1,000635 contacts →

Exact match

“Caliber Interconnect is an ISO 9001 certified design house serving to product-based technology business activities that need design and engineering expertise on a flexible basis…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
13Exact matchBayan Lepas, MalaysiaHQ recorded Oct 27, 20261,001-5,000592 contacts →

Exact match

“A Success Enabler ASE Electronics (M) Sdn.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
14Exact match桃園市, TaiwanHQ recorded Oct 27, 20261,001-5,000586 contacts →

Exact match

“Taiwan's semiconductor industry not only possesses the core advantages of talent and technology, but also the most important thing is to build a complete industrial supply chain.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
15Exact matchHsinchu Science Park, TaiwanHQ recorded Oct 27, 2026501-1,000576 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
16Exact match新竹市東區科學園區, TaiwanHQ recorded Oct 27, 20265,001-10,000566 contacts →

Exact match

“Chipbond was established in 1997 July 2nd and was booked on the Taiwan Stock Exchange starting from 2002 January 31st.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
17Exact matchApopka, FL, United StatesHQ recorded Oct 27, 2026501-1,000500 contacts →

Exact match

“Micross is the most complete provider of advanced microelectronic services and component, die and wafer solutions.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
18Exact matchSanta Clara, CA, United StatesHQ recorded Oct 27, 2026501-1,000500 contacts →

Exact match

“Since its founding in 2003, Synapse Designs' specialized design and engineering services have made us the preferred partner to numerous top-tier semiconductor and systems…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
19Exact matchBayan Lepas, MalaysiaHQ recorded Oct 27, 202651-200445 contacts →

Exact match

“Part of the SAM Group, SAM Meerkat offers a comprehensive portfolio of contract manufacturing and integration services for the global semiconductor and solar equipment industries.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
20Exact matchSunnyvale, CA, United StatesHQ recorded Oct 27, 2026501-1,000434 contacts →

Exact match

“Sierra Circuits has been faithfully serving PCB designers and engineers since 1986, and has worked with over customers since then.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
21Exact matchWestford, MA, United StatesHQ recorded Oct 27, 20261,001-5,000432 contacts →

Exact match

“Mack Technologies is a leading supplier of printed circuit board assembly, systems assembly, and electronics contract manufacturing services for the defense, communications…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
22Exact matchUnited StatesHQ recorded Oct 27, 2026501-1,000431 contacts →

Exact match

“ATEC is driven by our vision of being the strategic partner to our customers, focusing on customized service and offering a consistently first-rate and dynamic range of technical…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
23Exact matchNewport Beach, CA, United StatesHQ recorded Oct 27, 2026501-1,000426 contacts →

Exact match

“Orbit & Skyline is a leading semiconductor services provider with a strong and seasoned team of experienced engineers.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
24Exact match高雄市, TaiwanHQ recorded Oct 27, 20265,001-10,000412 contacts →

Exact match

“History OSE was established with capital from Dr.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
25Exact matchBangalore, IndiaHQ recorded Oct 27, 2026501-1,000384 contacts →

Exact match

“ARF Design has been a pioneer in providing comprehensive end-to-end chip design services to the global semiconductor industry.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase

Showing 25 of 1,006 integrated circuit assembly services worldwide

See the full list, filter by size, metro and specialty, and access 6,825 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Integrated circuit assembly services worldwide at a glance

As of Oct 27, 2026
11.3%Verified-email coverage
60.1Average contacts per company
11-50Median size (employees)
5.8%Largest-city concentration · Shenzhen
Oct 27, 2026Page data refreshed

Companies by employee count

1-10
300
11-50
332
51-200
188
201-500
81
501-1,000
41
1,001-5,000
34
5,001-10,000
11
10001+
17

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for integrated circuit assembly services are linked below.
What qualifies
Company records worldwide whose business descriptions match “integrated circuit assembly services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 6,825 professional contacts with verified work emails across the full matched dataset. 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 October 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Integrated circuit assembly services by location

6 lists · largest first

Every Integrated circuit assembly services 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “integrated circuit assembly services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many integrated circuit assembly services are there worldwide?

RevenueBase identified 1,006 company matches for integrated circuit assembly services worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Amkor Technology, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most integrated circuit assembly services?

The United States leads with 221 companies, followed by India (79) and the United Kingdom (48). Every integrated circuit assembly services list by country and city is linked on this page.

Which city has the most integrated circuit assembly services?

Shenzhen leads with 58 company records, followed by Bangalore (22) and Singapore (18).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,825 professional contacts with verified work emails tracked across these 1,006 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 27, 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 SmartSearch, 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.