Company lists · Data refreshed September 2026

Top 25 Assembly and packaging services worldwide

Name: Assembly and packaging services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 3,186 companies tracked

RevenueBase identified 3,186 assembly and packaging services worldwide as of September 2026 and tracks 56,569 professional contacts across them, including 12,638 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers assembly and packaging 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 30, 2026. Country and city lists for assembly and packaging 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 30, 2026 86% judged on-target in blind review

3,186Companies

56,569Contacts tracked

12,638Verified emails

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The 25 largest assembly and packaging services worldwide

Ranked by team size

Top 25 of 3,186 assembly and packaging services worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to assembly and packaging 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	Unisem	Partial evidence	Kuala Lumpur, MalaysiaHQ checked Sep 30, 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 30, 2026
2	Carsem	Partial evidence	Ipoh, MalaysiaHQ checked Sep 30, 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 30, 2026
3	Victory Packaging	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,066 contacts →
	Partial evidence “With more than 40 years of success in the packaging services and distribution industry, Victory Packaging has mastered both the science and the art of delivering complete…” Source: RevenueBase Database · checked Sep 30, 2026
4	Stephen Gould	Partial evidence	Madison, NJ, United StatesHQ checked Sep 30, 2026	201-500	902 contacts →
	Partial evidence “Over the course of the past 80+ years, Stephen Gould has been recognized as a leader within the packaging industry, growing to become one of the largest privately owned packaging…” Source: RevenueBase Database · checked Sep 30, 2026
5	Keytronic	Indirect evidence	Spokane Valley, WA, United StatesHQ checked Sep 30, 2026	1,001-5,000	819 contacts →
	Indirect evidence “Keytronic is a value-added contract manufacturer to some of the world’s leading OEMs.” Source: RevenueBase Database · checked Sep 30, 2026
6	Hollingsworth	Indirect evidence	Dearborn, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	664 contacts →
	Indirect evidence “Hollingsworth provides a complete portfolio of services tailored to exceed customer expectations through the use of industry leading SAP software, dedicated training programs and…” Source: RevenueBase Database · checked Sep 30, 2026
7	ASE Electronics M SDN BHD	Indirect evidence	Bayan Lepas, MalaysiaHQ checked Sep 30, 2026	1,001-5,000	652 contacts →
	Indirect evidence “A Success Enabler ASE Electronics (M) Sdn.” Source: RevenueBase Database · checked Sep 30, 2026
8	Shorr Packaging Corp	Partial evidence	Aurora, IL, United StatesHQ checked Sep 30, 2026	501-1,000	556 contacts →
	Partial evidence “Shorr is your premium, full-service packaging partner.” Source: RevenueBase Database · checked Sep 30, 2026
9	Tegra Medical	Indirect evidence	Franklin, MA, United StatesHQ checked Sep 30, 2026	501-1,000	510 contacts →
	Indirect evidence “Tegra Medical is an end-to-end contract manufacturing solutions provider, known as the company “where medical devices come to life.” Our customers look to us to manufacture…” Source: RevenueBase Database · checked Sep 30, 2026
10	Tessy Plastics Corp	Partial evidence	Skaneateles, NY, United StatesHQ checked Sep 30, 2026	1,001-5,000	499 contacts →
	Partial evidence “Founded in 1973, Tessy Plastics is a global contract manufacturer headquartered in Skaneateles, NY, specializing in injection molding and custom automated assembly solutions.” Source: RevenueBase Database · checked Sep 30, 2026
11	Hisco, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	201-500	478 contacts →
	Partial evidence “North America's largest distributor of industrial assembly materials.” Source: RevenueBase Database · checked Sep 30, 2026
12	MSI Express	Partial evidence	Portage, IN, United StatesHQ checked Sep 30, 2026	1,001-5,000	443 contacts →
	Partial evidence “MSI Express is a strategic, innovative contract manufacturing and packaging company.” Source: RevenueBase Database · checked Sep 30, 2026
13	National Assemblers INC	Partial evidence	Palm Beach, AustraliaHQ checked Sep 30, 2026	1,001-5,000	422 contacts →
	Partial evidence “We are America's largest and ONLY fully W2 workforce assembly company, specializing in retail and in-home professional product assembly.” Source: RevenueBase Database · checked Sep 30, 2026
14	Mack Technologies	Partial evidence	Westford, MA, United StatesHQ checked Sep 30, 2026	1,001-5,000	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 30, 2026
15	Connect Group N.V	Partial evidence	Kampenhout, BelgiumHQ checked Sep 30, 2026	1,001-5,000	404 contacts →
	Partial 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 30, 2026
16	Automated Technology Phil. Inc. - Atec	Indirect evidence	United StatesHQ checked Sep 30, 2026	501-1,000	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 30, 2026
17	INCAP	Indirect evidence	Helsinki, FinlandHQ checked Sep 30, 2026	1,001-5,000	392 contacts →
	Indirect evidence “Incap Corporation - flexible, agile and efficient electronics manufacturing services.” Source: RevenueBase Database · checked Sep 30, 2026
18	Assemblers Incorporated	Partial evidence	Chattanooga, TN, United StatesHQ checked Sep 30, 2026	1,001-5,000	370 contacts →
	Partial evidence “Assemblers, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
19	Belvika IS NOW Belpak	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 30, 2026	501-1,000	358 contacts →
	Partial evidence “Belvika Trade & Packaging is now BelPak.” Source: RevenueBase Database · checked Sep 30, 2026
20	Samuel Packaging Systems Group	Partial evidence	Woodridge, IL, United StatesHQ checked Sep 30, 2026	201-500	349 contacts →
	Partial evidence “At Samuel Packaging Systems Group, we are committed to providing our customers with innovative, high-quality, cost-effective packaging systems, supplies, and solutions.” Source: RevenueBase Database · checked Sep 30, 2026
21	Siliconware Precision Industries	Indirect evidence	United StatesHQ checked Sep 30, 2026	10001+	327 contacts →
	Indirect evidence “Established in May 1984, Siliconware Precision Industries Co, Ltd.” Source: RevenueBase Database · checked Sep 30, 2026
22	RRD Supply Chain Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	10001+	326 contacts →
	Indirect evidence “RRD Supply Chain Solutions, part of RRD, is an established global supply chain solutions provider that delivers value-add solutions for medical devices, diagnostics…” Source: RevenueBase Database · checked Sep 30, 2026
23	Plastikon Industries INC	Indirect evidence	Hayward, CA, United StatesHQ checked Sep 30, 2026	201-500	325 contacts →
	Indirect evidence “PLASTIKON INDUSTRIES was established in 1982 with the mission to be recognized as a world-leading plastic and contract manufacturer.” Source: RevenueBase Database · checked Sep 30, 2026
24	Millstone Medical	Indirect evidence	Fall River, MA, United StatesHQ checked Sep 30, 2026	501-1,000	319 contacts →
	Indirect evidence “Millstone Medical is the trusted partner of medical device manufacturers worldwide.” Source: RevenueBase Database · checked Sep 30, 2026
25	Harmac Medical Products	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 30, 2026	1,001-5,000	308 contacts →
	Indirect evidence “Your Global Partner for Full-Service Contract Manufacturing of Single-Use Medical Devices.” Source: RevenueBase Database · checked Sep 30, 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: assembly and packaging 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 assembly and packaging services.
Partial evidence: Its own public description names part of assembly and packaging services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name assembly and packaging 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 3,186 assembly and packaging services worldwide

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Assembly and packaging services worldwide at a glance

As of Sep 30, 2026

22.3%Verified-email coverage

17.8Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · Shenzhen

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

836

11-50

1,162

51-200

759

201-500

235

501-1,000

104

1,001-5,000

5,001-10,000

10001+

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 assembly and packaging 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 assembly and packaging services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “assembly and packaging 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 assembly and packaging 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 assembly and packaging 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, 12,638 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 30, 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.

Assembly and packaging services by location

15 lists · largest first

Every Assembly and packaging 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 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 assembly and packaging 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 assembly and packaging services are there worldwide?

RevenueBase identified 3,186 assembly and packaging 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?

Unisem, headquartered in Kuala Lumpur, tops this list with the largest team on record.

Which country has the most assembly and packaging services?

The United States leads with 960 companies, followed by Germany (250) and Italy (221). Every assembly and packaging services list by country and city is linked on this page.

Which city has the most assembly and packaging services?

Shenzhen leads with 57 headquartered companies, followed by San Jose (23) and Singapore (17).

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 12,638 verified decision-maker contacts tracked across these 3,186 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 30, 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.