Company lists · Data refreshed September 2026
Top 25 Pcb assembly and test services worldwide
RevenueBase identified 3,297 pcb assembly and test services worldwide as of September 2026 and tracks 59,125 professional contacts across them, including 9,460 with verified work emails. The United States is the largest market and Shenzhen the largest hub.
This list covers pcb assembly and test 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 20, 2026. Country and city lists for pcb assembly and test 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.
The 25 largest pcb assembly and test services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,613 contacts → | ||||
Strong 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 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,447 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,438 contacts → | ||||
Indirect evidence “For 20+ years, Avalon Technologies, has been a choice for large global MNC companies that are into Medical, Telecommunication, Railways, Power, Aerospace & Defense and Industrial…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,200 contacts → | ||||
Indirect evidence “Established in May 1984, Siliconware Precision Industries Co, Ltd.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 864 contacts → | ||||
Partial evidence “Perusahaan Manufaktur Elektronik (Printed board mounting & Electronic equipment assembly)” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 819 contacts → | ||||
Indirect evidence “Keytronic is a value-added contract manufacturer to some of the world’s leading OEMs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 669 contacts → | ||||
Indirect evidence “Our Mission - Enabling customer success by delivering innovative products that move the world forward.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 656 contacts → | ||||
Strong evidence “King Yuan Electronics Corp.(KYEC) provides wafer probing, final product test and assembly service for the semiconductor backend supply chain.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 652 contacts → | ||||
Indirect evidence “A Success Enabler ASE Electronics (M) Sdn.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 629 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 588 contacts → | ||||
Partial evidence “Tripod Technology 1998PCB202510 2023Tripod Technology PCB 2.7% Tripod Technology Tripod Technology PCBTripodTechnology” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 517 contacts → | ||||
Partial evidence “PCB Technologies is an All-in-One Solutions provider of high-mix multilayer rigid, rigid-flex and multi-flex PCBs, Substrates, IC Packaging, complex electronic component…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 490 contacts → | ||||
Partial evidence “PT Sat Nusapersada Tbk began operations as a supplier of printed circuit board and mechanical parts assembly and a manufacture of electronic components.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 467 contacts → | ||||
Indirect evidence “Multek is a global leader in printed circuit board technology and value-added manufacturing.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 429 contacts → | ||||
Indirect evidence “SGS Tekniks Manufacturing Pvt.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 428 contacts → | ||||
Partial evidence “Sierra Circuits has been faithfully serving PCB designers and engineers since 1986, and has worked with over customers since then.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 405 contacts → | ||||
Partial evidence “Mack Technologies is a leading supplier of printed circuit board assembly, systems assembly, and electronics contract manufacturing services for the defense, communications…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 404 contacts → | ||||
Strong evidence “With almost 40 years of experience, Connect Group is one of the leading service providers regarding cable, PCB- and module assembly.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 400 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 392 contacts → | ||||
Indirect evidence “Incap Corporation - flexible, agile and efficient electronics manufacturing services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 348 contacts → | ||||
Indirect evidence “History OSE was established with capital from Dr.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 343 contacts → | ||||
Indirect evidence “NOTE produces PCBAs, subassemblies and box build products.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 294 contacts → | ||||
Indirect evidence “Summit Interconnect is one of the leading providers of complex, rigid, and flexible printed circuit boards in North America, offering solutions ranging from advanced prototyping…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: pcb assembly and test 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 pcb assembly and test services.
- Partial evidence
- Its own public description names part of pcb assembly and test services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name pcb assembly and test 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 3,297 pcb assembly and test services worldwide
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Pcb assembly and test services worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 pcb assembly and test 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
- Every country. Country and city lists for pcb assembly and test services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “pcb assembly and test 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 pcb assembly and test 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 pcb assembly and test 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, 9,460 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 20, 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.
Pcb assembly and test services by location
15 lists · largest firstEvery Pcb assembly and test services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Pcb assembly and test services based in the United States661
- Pcb assembly and test services based in China644
- Pcb assembly and test services based in India256
- Pcb assembly and test services based in the United Kingdom231
- Pcb assembly and test services based in Germany136
- Pcb assembly and test services based in Italy130
- Pcb assembly and test services based in Canada72
- Pcb assembly and test services based in Brazil63
- Pcb assembly and test services based in France50
- Pcb assembly and test services based in Taiwan45
- Pcb assembly and test services based in Spain40
- Pcb assembly and test services based in Malaysia39
- Pcb assembly and test services based in the Netherlands35
- Pcb assembly and test services based in Israel29
- Pcb assembly and test services based in Poland27
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 pcb assembly and test 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 pcb assembly and test services are there worldwide?
RevenueBase identified 3,297 pcb assembly and test 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?
UTAC, headquartered in Singapore, tops this list with the largest team on record.
Which country has the most pcb assembly and test services?
The United States leads with 661 companies, followed by China (644) and India (256). Every pcb assembly and test services list by country and city is linked on this page.
Which city has the most pcb assembly and test services?
Shenzhen leads with 357 headquartered companies, followed by San Jose (37) and Bangalore (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 9,460 verified decision-maker contacts tracked across these 3,297 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 20, 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.