Company lists · Data refreshed September 2026

Top 25 Electronics assembly services based in the United States

Name: Electronics assembly services 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 902 companies tracked

RevenueBase identified 902 electronics assembly services headquartered in the United States as of September 2026 and tracks 24,768 professional contacts across them, including 6,548 with verified work emails. San Jose is the largest hub.

This list covers electronics assembly services 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

902Companies

24,768Contacts tracked

6,548Verified emails

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The 25 largest electronics assembly services based in the United States

Ranked by team size

Top 25 of 902 electronics assembly services 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 electronics assembly 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	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
2	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
3	Keytronic	Indirect evidence	Spokane Valley, WA, United StatesHQ checked Sep 16, 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 16, 2026
4	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
5	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
6	IEC Electronics Corp	Partial evidence	Newark, NY, United StatesHQ checked Sep 16, 2026	n/a	563 contacts →
	Partial evidence “IEC Electronics, acquired by Creation Technologies in 2021, is a provider of electronic manufacturing services ("EMS") to advanced technology companies that produce life-saving…” Source: RevenueBase Database · checked Sep 16, 2026
7	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
8	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
9	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
10	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
11	Pactron INC	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 16, 2026	201-500	247 contacts →
	Partial evidence “Pactron is a preeminent provider of Electronics Design & Manufacturing Services, supporting clients across a broad range of industry segments, from semiconductor to networking…” Source: RevenueBase Database · checked Sep 16, 2026
12	I3 Assembly	Partial evidence	Binghamton, NY, United StatesHQ checked Sep 16, 2026	201-500	231 contacts →
	Partial evidence “i3 Assembly LLC is dedicated to advancing our competitive excellence from development through full-scale production manufacturing.” Source: RevenueBase Database · checked Sep 16, 2026
13	Intervala, LLC	Indirect evidence	Mount Pleasant, PA, United StatesHQ checked Sep 16, 2026	201-500	226 contacts →
	Indirect evidence “Full-service manufacturer.” Source: RevenueBase Database · checked Sep 16, 2026
14	Virtex	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	501-1,000	225 contacts →
	Partial evidence “VIRTEX is a trusted technology partner that provides strategic Electronic Manufacturing Services (EMS) to our customer base.” Source: RevenueBase Database · checked Sep 16, 2026
15	Milwaukee Electronics	Partial evidence	Glendale, WI, United StatesHQ checked Sep 16, 2026	501-1,000	221 contacts →
	Partial evidence “Milwaukee Electronics is an American electronics manufacturing services (EMS) provider based in the U.S, Mexico and Asia.” Source: RevenueBase Database · checked Sep 16, 2026
16	Sechan Electronics, INC	Indirect evidence	Lititz, PA, United StatesHQ checked Sep 16, 2026	201-500	195 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
17	Rocket EMS	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 16, 2026	201-500	183 contacts →
	Indirect evidence “Rocket EMS would rather invest its effort in figuring out how to solve a problem instead of telling you all the little things that will delay a project or get in the way.” Source: RevenueBase Database · checked Sep 16, 2026
18	Mass Precision, INC	Strong evidence	San Jose, CA, United StatesHQ checked Sep 16, 2026	201-500	179 contacts →
	Strong evidence “Since 1984, MASS has excelled in the custom contract manufacture of electronic chassis, frames, fabrications and turn-key electro-mechanical assemblies built to customer…” Source: RevenueBase Database · checked Sep 16, 2026
19	Enercon Technologies	Partial evidence	Gray, ME, United StatesHQ checked Sep 16, 2026	201-500	177 contacts →
	Partial evidence “Enercon Technologies provides integrated electronic product design & contract manufacturing services to the medical, industrial, and defense segments.” Source: RevenueBase Database · checked Sep 16, 2026
20	Delta Group Electronics, INC	Partial evidence	Albuquerque, NM, United StatesHQ checked Sep 16, 2026	201-500	172 contacts →
	Partial evidence “Delta Group Electronics, Inc, established in 1987, is a high-mix medium volume to low-mix medium quantity run electronics manufacturing services (EMS) provider recognized by Inc.” Source: RevenueBase Database · checked Sep 16, 2026
21	Advanced Circuits	Partial evidence	Aurora, CO, United StatesHQ checked Sep 16, 2026	201-500	170 contacts →
	Partial evidence “Since 1989, Advanced Circuits has been leading the PCB industry in Quality and Innovation for prototype through large scale production manufacturing and now provides full assembly…” Source: RevenueBase Database · checked Sep 16, 2026
22	Matric Group	Strong evidence	Seneca, PA, United StatesHQ checked Sep 16, 2026	201-500	167 contacts →
	Strong evidence “Matric Group is a contract manufacturer of electronic assemblies, offering world-class Electronic Manufacturing Services (EMS) with personalized customer support, working closely…” Source: RevenueBase Database · checked Sep 16, 2026
23	Zentech Manufacturing	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 16, 2026	201-500	157 contacts →
	Indirect evidence “Zentech Manufacturing, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
24	Cypress Industries	Indirect evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	201-500	152 contacts →
	Indirect evidence “Cypress Industries is a leading, global vertically-integrated contract manufacturer.” Source: RevenueBase Database · checked Sep 16, 2026
25	Parpro, Inc.	Indirect evidence	Santa Ana, CA, United StatesHQ checked Sep 16, 2026	501-1,000	140 contacts →
	Indirect evidence “PARPRO is a full-service contract manufacturing company with an emphasis on EMS and OEM solutions.” 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: electronics assembly 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 electronics assembly services.
Partial evidence: Its own public description names part of electronics assembly services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electronics assembly 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 902 electronics assembly services based in the United States

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Electronics assembly services based in the United States at a glance

As of Sep 16, 2026

26.4%Verified-email coverage

27.5Average contacts per company

11-50Median size (employees)

4.2%Largest-city concentration · San Jose

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

237

11-50

334

51-200

231

201-500

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 902 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 electronics assembly 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “electronics assembly 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 electronics assembly 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 electronics assembly services, 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, 6,548 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.

Electronics assembly services by metro

Electronics assembly services in San Jose38

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 electronics assembly 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 electronics assembly services are there based in the United States?

RevenueBase identified 902 electronics assembly services 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?

Kimball Electronics, headquartered in Jasper, tops this list with the largest team on record.

Which city has the most electronics assembly services?

San Jose leads with 38 headquartered companies, followed by Fremont (21) and Houston (13).

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 6,548 verified decision-maker contacts tracked across these 902 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.