Company lists · Data refreshed September 2026

Top 25 Electronic assembly manufacturers based in the United States

Name: Electronic assembly manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 2,021 companies tracked

RevenueBase identified 2,021 electronic assembly manufacturers headquartered in the United States as of September 2026 and tracks 81,235 professional contacts across them, including 20,493 with verified work emails. San Jose is the largest hub.

This list covers electronic assembly manufacturers headquartered in the United States, 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 16, 2026.

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 16, 2026 86% judged on-target in blind review

2,021Companies

81,235Contacts tracked

20,493Verified emails

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The 25 largest electronic assembly manufacturers based in the United States

Ranked by team size

Top 25 of 2,021 electronic assembly manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to electronic 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	Sanmina	Partial evidence	San Jose, CA, United StatesHQ checked Sep 16, 2026	10001+	20,153 contacts →
	Partial evidence “Sanmina Corporation (Nasdaq: SANM) is a leading integrated manufacturing solutions provider serving the fastest-growing segments of the global Electronics Manufacturing Services…” Source: RevenueBase Database · checked Sep 16, 2026
2	Plexus Corp	Indirect evidence	Neenah, NC, United StatesHQ checked Sep 16, 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 16, 2026
3	Kimball Electronics	Partial evidence	Jasper, IN, United StatesHQ checked Sep 16, 2026	5,001-10,000	2,192 contacts →
	Partial evidence “Kimball Electronics was founded in 1961.” Source: RevenueBase Database · checked Sep 16, 2026
4	Creation Technologies	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,761 contacts →
	Partial evidence “Creation Technologies is a trusted scaled specialty provider of advanced electronics, with a proven track record of delivering high quality and reliable execution to mid-volume…” Source: RevenueBase Database · checked Sep 16, 2026
5	Ducommun Incorporated	Indirect evidence	Costa Mesa, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,452 contacts →
	Indirect evidence “Founded in 1849, Ducommun is the oldest company in California.” Source: RevenueBase Database · checked Sep 16, 2026
6	Bizlink Group	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 16, 2026	10001+	1,054 contacts →
	Indirect evidence “Founded in 1996 and headquartered in Silicon Valley, USA, BizLink is dedicated to making transformative connections that bring visionary ideas to life.” Source: RevenueBase Database · checked Sep 16, 2026
7	Smtc Corporation	Partial evidence	Melbourne, FL, United StatesHQ checked Sep 16, 2026	1,001-5,000	971 contacts →
	Partial evidence “SMTC is a global Electronics Manufacturing Services (EMS) provider, delivering fully integrated and customized contract manufacturing services.” Source: RevenueBase Database · checked Sep 16, 2026
8	Keytronic	Partial evidence	Spokane Valley, WA, United StatesHQ checked Sep 16, 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 16, 2026
9	Neotech	Partial evidence	Chatsworth, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	641 contacts →
	Partial evidence “NEOTech is a premier provider of electronic manufacturing services (EMS), integrated design engineering, and advanced supply chain solutions for the aerospace and defense, medical…” Source: RevenueBase Database · checked Sep 16, 2026
10	Telephonics	Partial evidence	Farmingdale, NY, United StatesHQ checked Sep 16, 2026	10001+	640 contacts →
	Partial evidence “TTM Technologies, Inc.(TTM) is a leading global manufacturer of technology solutions including engineered systems, radio frequency (RF) components and RF microwave/microelectronic…” Source: RevenueBase Database · checked Sep 16, 2026
11	OSI Electronics	Partial evidence	Hawthorne, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	634 contacts →
	Partial evidence “OSI Electronics is a global Manufacturing Solutions provider headquartered in Hawthorne, CA, and Singapore.” Source: RevenueBase Database · checked Sep 16, 2026
12	SEMI	Partial evidence	Milpitas, CA, United StatesHQ checked Sep 16, 2026	201-500	580 contacts →
	Partial evidence “SEMI® is the global industry association connecting over companies and 1.5 million professionals worldwide across the semiconductor and electronics design and manufacturing supply…” Source: RevenueBase Database · checked Sep 16, 2026
13	Airborn	Strong evidence	Georgetown, TX, United StatesHQ checked Sep 16, 2026	1,001-5,000	556 contacts →
	Strong evidence “AirBorn engineers and manufactures specialized connectors & electronic components for Original Equipment Manufacturers (OEMs).” Source: RevenueBase Database · checked Sep 16, 2026
14	PCB Technologies LTD	Partial evidence	Ocean Township, NJ, United StatesHQ checked Sep 16, 2026	501-1,000	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 16, 2026
15	Multek	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 16, 2026	5,001-10,000	467 contacts →
	Indirect evidence “Multek is a global leader in printed circuit board technology and value-added manufacturing.” Source: RevenueBase Database · checked Sep 16, 2026
16	Sierra Circuits	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 16, 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 16, 2026
17	Mack Technologies	Strong evidence	Westford, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	405 contacts →
	Strong 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 16, 2026
18	Rapid Manufacturing	Strong evidence	Anaheim, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	394 contacts →
	Strong 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 16, 2026
19	Amphenol Optimize	Indirect evidence	Nogales, AZ, United StatesHQ checked Sep 16, 2026	1,001-5,000	392 contacts →
	Indirect evidence “Manufacturing with quality products for the divisions of Amphenol Corporation.” Source: RevenueBase Database · checked Sep 16, 2026
20	Sigmatron International	Partial evidence	Elk Grove Village, IL, United StatesHQ checked Sep 16, 2026	1,001-5,000	391 contacts →
	Partial evidence “Service-Driven Electronics Manufacturing.” Source: RevenueBase Database · checked Sep 16, 2026
21	MFLEX	Strong evidence	Irvine, CA, United StatesHQ checked Sep 16, 2026	10001+	389 contacts →
	Strong evidence “Founded in 1984, MFLEX has become one of the largest global flexible circuit manufacturers & assemblers.” Source: RevenueBase Database · checked Sep 16, 2026
22	Kauffman Engineering	Indirect evidence	Lincolnshire, IL, United StatesHQ checked Sep 16, 2026	1,001-5,000	334 contacts →
	Indirect evidence “Kauffman Engineering is a privately held, American company and well established since its beginning in 1973.” Source: RevenueBase Database · checked Sep 16, 2026
23	Summit Interconnect	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	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 16, 2026
24	ECM	Indirect evidence	Westfield, PA, United StatesHQ checked Sep 16, 2026	501-1,000	292 contacts →
	Indirect evidence “We Make Powerful Connections.” Source: RevenueBase Database · checked Sep 16, 2026
25	VEXOS	Partial evidence	New York, NY, United StatesHQ checked Sep 16, 2026	501-1,000	283 contacts →
	Partial evidence “Vexos, is an award-winning global electronics manufacturing services (EMS) and custom material solutions (CMS) company, providing complete end-to-end supply chain management…” Source: RevenueBase Database · checked Sep 16, 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: electronic 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 electronic assembly manufacturers.
Partial evidence: Its own public description names part of electronic assembly manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electronic 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 2,021 electronic assembly manufacturers based in the United States

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Electronic assembly manufacturers based in the United States at a glance

As of Sep 16, 2026

25.2%Verified-email coverage

40.2Average contacts per company

11-50Median size (employees)

3.1%Largest-city concentration · San Jose

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

565

11-50

772

51-200

466

201-500

121

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 2,021 companies.

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 electronic 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “electronic 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 electronic 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 electronic assembly manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 20,493 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 16, 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.

Electronic assembly manufacturers by metro

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 electronic 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 electronic assembly manufacturers are there based in the United States?

RevenueBase identified 2,021 electronic assembly manufacturers headquartered in the United States 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?

Sanmina, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most electronic assembly manufacturers?

San Jose leads with 63 headquartered companies, followed by Fremont (37) and San Diego (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 20,493 verified decision-maker contacts tracked across these 2,021 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 16, 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.