Company lists · Data refreshed October 2026

Top 15 Die attach circuit assembly services worldwide

RevenueBase identified 40 company matches for die attach circuit assembly services worldwide as of October 2026 and tracks 3,425 professional contacts across them, including 505 with verified work emails. Singapore is the largest hub.

This list covers company matches for die attach 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 24, 2026.

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 24, 2026 How this list was built
40Companies
3,425Contacts tracked
505Verified emails
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The 15 largest die attach circuit assembly services worldwide

Ranked by team size
Top 15 of 40 company matches for die attach circuit assembly services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 24, 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 matchKuala Lumpur, MalaysiaHQ recorded Oct 24, 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 24, 2026 · View company records in RevenueBase
2Exact matchApopka, FL, United StatesHQ recorded Oct 24, 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 24, 2026 · View company records in RevenueBase
3Exact matchUnited StatesHQ recorded Oct 24, 202610001+339 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
4Exact matchChutung Chen, TaiwanHQ recorded Oct 24, 20261,001-5,000317 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
5Exact matchBerlin, GermanyHQ recorded Oct 24, 202651-200146 contacts →

Exact match

“Headquartered in Berlin, Germany, Finetech is a global supplier of high-precision die bonding and micro-assembly equipment, supporting semiconductor, photonics, and advanced…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
6Exact matchFremont, CA, United StatesHQ recorded Oct 24, 202651-200133 contacts →

Exact match

“ISE Labs is a one-stop semiconductor engineering service provider.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
7Exact matchSingaporeHQ recorded Oct 24, 2026501-1,00096 contacts →

Exact match

“Your Partner in Semiconductor Excellence.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
8Exact matchRegensburg, GermanyHQ recorded Oct 24, 202651-20068 contacts →

Exact match

“Ultra Precision Die Attach, High Speed Wafer Inking and inspection, High Speed Dispense System and Custom Solutions and more!”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
9Exact matchSurat, IndiaHQ recorded Oct 24, 202651-20058 contacts →

Exact match

“Suchi Semicon Pvt Ltd, a trailblazer in the Semiconductor Assembly and Testing (OSAT) industry!”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
10Exact matchGavardo, ItalyHQ recorded Oct 24, 202611-5033 contacts →

Exact match

“Strong experience and worldwide patents in die attach related equipment (Ag Sintering Press, Scanning Acoustic Microscopy, Wafer Lamination).”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
11Exact matchZhubei City, TaiwanHQ recorded Oct 24, 202651-20012 contacts →

Exact match

“SAULTECH focuses on the research and development of Pick & Place and Die Attach technologies.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
12Exact matchMorgan Hill, CA, United StatesHQ recorded Oct 24, 202651-20011 contacts →

Exact match

“AmTECH Microelectronics is a custom microelectronics assembly and packaging services company - OSAT; based in Morgan Hill, CA.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
13Exact matchTempe, AZ, United StatesHQ recorded Oct 24, 202611-506 contacts →

Exact match

“At Advotech, we provide top-quality semiconductor assembly services with the personalized attention and care you won't find at larger facilities.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
14Exact matchTunis, TunisiaHQ recorded Oct 24, 202651-2006 contacts →

Exact match

“ELMAP propose une offre complète de services à valeur ajoutée autour du composant électronique : de la programmation à la réparation en passant par la mise en bande, le marquage…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
15Exact matchLivermore, CA, United StatesHQ recorded Oct 24, 20261-104 contacts →

Exact match

“We provide prototype, process development, low-med volume manufacturing for advanced packaging.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase

Showing 15 of 40 die attach circuit assembly services worldwide

See the full list, filter by size, metro and specialty, and access 505 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Die attach circuit assembly services worldwide at a glance

As of Oct 24, 2026
14.7%Verified-email coverage
85.6Average contacts per company
11-50Median size (employees)
5.0%Largest-city concentration · Singapore
Oct 24, 2026Page data refreshed

Companies by employee count

1-10
14
11-50
9
51-200
9
501-1,000
3
1,001-5,000
2
5,001-10,000
1
10001+
2

Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 40 companies.

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.
What qualifies
Company records worldwide whose business descriptions match “die attach 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 505 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 24, 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.

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 “die attach circuit assembly services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many die attach circuit assembly services are there worldwide?

RevenueBase identified 40 company matches for die attach 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?

Unisem tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most die attach circuit assembly services?

Singapore leads with 2 company records, followed by Ansan (1) and Apopka (1).

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 505 professional contacts with verified work emails tracked across these 40 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 24, 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.