Company lists · Data refreshed September 2026

Top 25 Assembly manufacturers worldwide

Name: Assembly manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 6,806 companies tracked

RevenueBase identified 6,806 assembly manufacturers worldwide as of September 2026 and tracks 150,646 professional contacts across them, including 25,077 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers assembly manufacturers 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 manufacturers 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

6,806Companies

150,646Contacts tracked

25,077Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest assembly manufacturers worldwide

Ranked by team size

Top 25 of 6,806 assembly manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to assembly manufacturers: 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	Rencol Components LTD	Indirect evidence	Bristol, United KingdomHQ checked Sep 30, 2026	n/a	15,741 contacts →
	Indirect evidence “Following 100 years of successful design and manufacturing experience in plastic and metals, Rencol Components has built a truly global supply chain - rapidly expanding our range…” Source: RevenueBase Database · checked Sep 30, 2026
2	Plexus Corp	Indirect evidence	Neenah, NC, United StatesHQ checked Sep 30, 2026	10001+	8,149 contacts →
	Indirect evidence “Since 1979, Plexus has been partnering with companies to create the products that build a better world.” Source: RevenueBase Database · checked Sep 30, 2026
3	Aequs Limited	Indirect evidence	Belgaum, IndiaHQ checked Sep 30, 2026	1,001-5,000	1,882 contacts →
	Indirect evidence “Aequs is a diversified contract manufacturing company providing vertically integrated product solutions across the Aerospace, Toys and Consumer Durable Goods industries.” Source: RevenueBase Database · checked Sep 30, 2026
4	Android Industries	Partial evidence	Auburn Hills, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,404 contacts →
	Partial evidence “Voltava was formed in December 2025 through the combination of Detroit Manufacturing Systems, Android Industries and Avancez Assembly.” Source: RevenueBase Database · checked Sep 30, 2026
5	Bharat FIH	Indirect evidence	Kancheepuram, IndiaHQ checked Sep 30, 2026	10001+	1,334 contacts →
	Indirect evidence “Bharat FIH Private Ltd, formerly known as Rising Stars Mobile India Private Ltd, a Foxconn Technology Group Company, is India’s leading Electronics Manufacturing Company.” Source: RevenueBase Database · checked Sep 30, 2026
6	HAYCO	Indirect evidence	Hong KongHQ checked Sep 30, 2026	5,001-10,000	926 contacts →
	Indirect evidence “For 40 years, Hayco has been the partner of choice for the world’s leading FMCG companies and retailers.” Source: RevenueBase Database · checked Sep 30, 2026
7	Dakkota Integrated Systems	Partial evidence	Holt, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	895 contacts →
	Partial evidence “Dakkota Integrated Systems is a company with world-class products that are designed, engineered, and manufactured by a diverse team of talented employees.” Source: RevenueBase Database · checked Sep 30, 2026
8	Nelson Global	Partial evidence	Stoughton, WI, United StatesHQ checked Sep 30, 2026	1,001-5,000	879 contacts →
	Partial evidence “Nelson Global designs, manufactures, and distributes custom solutions for customers across crucial industries worldwide.” Source: RevenueBase Database · checked Sep 30, 2026
9	Pt. Katolec Indonesia	Partial evidence	Cikarang, IndonesiaHQ checked Sep 30, 2026	501-1,000	864 contacts →
	Partial evidence “Perusahaan Manufaktur Elektronik (Printed board mounting & Electronic equipment assembly)” Source: RevenueBase Database · checked Sep 30, 2026
10	Surin Automotive Private Limited	Indirect evidence	Bangalore, IndiaHQ checked Sep 30, 2026	501-1,000	852 contacts →
	Indirect evidence “Surin Automotive Private Limited is one of the leading engineering and manufacturing companies in India operating 12 plants across 7 cities having 5 divisions driving the growth…” Source: RevenueBase Database · checked Sep 30, 2026
11	Keytronic	Partial evidence	Spokane Valley, WA, United StatesHQ checked Sep 30, 2026	1,001-5,000	819 contacts →
	Partial evidence “Keytronic is a value-added contract manufacturer to some of the world’s leading OEMs.” Source: RevenueBase Database · checked Sep 30, 2026
12	Siix Corporation	Partial evidence	Osaka, JapanHQ checked Sep 30, 2026	5,001-10,000	538 contacts →
	Partial evidence “SiiX Corporation is a distinctive global company which offers comprehensive Electronics Manufacturing Services (EMS) mainly to the electronics and automobile manufacturers…” Source: RevenueBase Database · checked Sep 30, 2026
13	PT SAT Nusapersada TBK Ptsn	Strong evidence	Batam, IndonesiaHQ checked Sep 30, 2026	5,001-10,000	490 contacts →
	Strong 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 30, 2026
14	Industria Mecânica Samot Ltda	Indirect evidence	São Bernardo Do Campo, BrazilHQ checked Sep 30, 2026	501-1,000	479 contacts →
	Indirect evidence “Fundada em 1960 pelo atual presidente Tomislav Jancar, a SAMOT iniciou sua oferta de serviços para atender à então recém instalada indústria automobilística no Brasil.” Source: RevenueBase Database · checked Sep 30, 2026
15	JSG Innotech Pvt. LTD	Indirect evidence	Sonipat, IndiaHQ checked Sep 30, 2026	51-200	474 contacts →
	Indirect evidence “JSG Innotech has evolved as an enterprise committed to bringing opportunities of Innovation, Technology and Competence.” Source: RevenueBase Database · checked Sep 30, 2026
16	Gill Industries	Strong evidence	Grand Rapids, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	472 contacts →
	Strong evidence “As a global supplier of precision engineered assemblies, we design, engineer and manufacture things that move.” Source: RevenueBase Database · checked Sep 30, 2026
17	Mack Molding Company	Indirect evidence	Arlington, VT, United StatesHQ checked Sep 30, 2026	1,001-5,000	453 contacts →
	Indirect evidence “Mack Molding Co, headquartered in Arlington, VT, provides design through FDA-approved manufacturing services to the medical, commercial, computer & business equipment, energy and…” Source: RevenueBase Database · checked Sep 30, 2026
18	Sierra Circuits	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 30, 2026	501-1,000	428 contacts →
	Indirect 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 30, 2026
19	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
20	Hanza Group	Indirect evidence	Stockholm, SwedenHQ checked Sep 30, 2026	1,001-5,000	419 contacts →
	Indirect evidence “HANZA is a global knowledge and manufacturing company that modernizes and streamlines the manufacturing industry.” Source: RevenueBase Database · checked Sep 30, 2026
21	Renata Precision Components PVT LTD	Partial evidence	Pune, IndiaHQ checked Sep 30, 2026	201-500	410 contacts →
	Partial evidence “Injection Molding, Tooling,High Speed Stamping,Product Design and Assemblies” Source: RevenueBase Database · checked Sep 30, 2026
22	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
23	PSZ Electronic Gmbh	Indirect evidence	Vohenstrauß, GermanyHQ checked Sep 30, 2026	1,001-5,000	399 contacts →
	Indirect evidence “PSZ electronic GmbH is an electrical and electronic manufacturing company based out of Im Gstaudach 6, Vohenstrauß, Vohenstrauß, Germany.” Source: RevenueBase Database · checked Sep 30, 2026
24	Rapid Manufacturing	Partial evidence	Anaheim, CA, United StatesHQ checked Sep 30, 2026	1,001-5,000	394 contacts →
	Partial evidence “Rapid Manufacturing is a global electronics manufacturing company specialist in electronic custom-designed wire & cable harnesses, electro-mechanical, and box build assemblies for…” Source: RevenueBase Database · checked Sep 30, 2026
25	Amphenol Optimize	Indirect evidence	Nogales, AZ, United StatesHQ checked Sep 30, 2026	1,001-5,000	392 contacts →
	Indirect evidence “Manufacturing with quality products for the divisions of Amphenol Corporation.” 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 manufacturers. 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 manufacturers.
Partial evidence: Its own public description names part of assembly manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name assembly manufacturers. 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 6,806 assembly manufacturers worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 25,077 reachable decision-makers.

Free signup · no credit card

View the full list →

Assembly manufacturers worldwide at a glance

As of Sep 30, 2026

16.6%Verified-email coverage

22.1Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Shenzhen

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

1,634

11-50

2,608

51-200

1,692

201-500

499

501-1,000

191

1,001-5,000

109

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 manufacturers, 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 manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “assembly manufacturers”. 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 manufacturers), 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 manufacturers, 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, 25,077 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 manufacturers by location

29 lists · largest first

Every Assembly manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 manufacturers, 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 manufacturers are there worldwide?

RevenueBase identified 6,806 assembly manufacturers 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?

Rencol Components LTD, headquartered in Bristol, tops this list with the largest team on record.

Which country has the most assembly manufacturers?

The United States leads with 1,906 companies, followed by China (489) and India (453). Every assembly manufacturers list by country and city is linked on this page.

Which city has the most assembly manufacturers?

Shenzhen leads with 137 headquartered companies, followed by Bangalore (59) and Pune (44).

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 25,077 verified decision-maker contacts tracked across these 6,806 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.

Ready to reach these companies? Verified emails and direct dials for all 6,806 assembly manufacturers worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.