Company lists · Data refreshed September 2026

Top 25 IT manufacturing companies based in the United States

Name: IT manufacturing companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 559 companies tracked

RevenueBase identified 559 IT manufacturing companies headquartered in the United States as of September 2026 and tracks 41,702 professional contacts across them, including 10,797 with verified work emails. San Jose is the largest hub.

This list covers IT manufacturing companies 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 21, 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 21, 2026 86% judged on-target in blind review

559Companies

41,702Contacts tracked

10,797Verified emails

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The 25 largest IT manufacturing companies based in the United States

Ranked by team size

Top 25 of 559 IT manufacturing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to IT manufacturing companies: 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 21, 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 21, 2026
2	Benchmark	Partial evidence	Tempe, AZ, United StatesHQ checked Sep 21, 2026	10001+	5,362 contacts →
	Partial evidence “Benchmark is a worldwide provider of innovative product design, engineering services, technology solutions and advanced manufacturing services.” Source: RevenueBase Database · checked Sep 21, 2026
3	Kimball Electronics	Indirect evidence	Jasper, IN, United StatesHQ checked Sep 21, 2026	5,001-10,000	2,192 contacts →
	Indirect evidence “Kimball Electronics was founded in 1961.” Source: RevenueBase Database · checked Sep 21, 2026
4	OSI Electronics	Partial evidence	Hawthorne, CA, United StatesHQ checked Sep 21, 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 21, 2026
5	IEC Electronics Corp	Partial evidence	Newark, NY, United StatesHQ checked Sep 21, 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 21, 2026
6	Mack Technologies	Partial evidence	Westford, MA, United StatesHQ checked Sep 21, 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 21, 2026
7	Sigmatron International	Partial evidence	Elk Grove Village, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	391 contacts →
	Partial evidence “Service-Driven Electronics Manufacturing.” Source: RevenueBase Database · checked Sep 21, 2026
8	VEXOS	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
9	Pactron INC	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 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 21, 2026
10	Intervala, LLC	Indirect evidence	Mount Pleasant, PA, United StatesHQ checked Sep 21, 2026	201-500	226 contacts →
	Indirect evidence “Full-service manufacturer.” Source: RevenueBase Database · checked Sep 21, 2026
11	Virtex	Partial evidence	Austin, TX, United StatesHQ checked Sep 21, 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 21, 2026
12	Milwaukee Electronics	Partial evidence	Glendale, WI, United StatesHQ checked Sep 21, 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 21, 2026
13	Mass Precision, INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	201-500	179 contacts →
	Indirect 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 21, 2026
14	Enercon Technologies	Partial evidence	Gray, ME, United StatesHQ checked Sep 21, 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 21, 2026
15	Matric Group	Partial evidence	Seneca, PA, United StatesHQ checked Sep 21, 2026	201-500	167 contacts →
	Partial 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 21, 2026
16	Zentech Manufacturing	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 21, 2026	201-500	157 contacts →
	Partial evidence “Zentech Manufacturing, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
17	Cypress Industries	Indirect evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	201-500	152 contacts →
	Indirect evidence “Cypress Industries is a leading, global vertically-integrated contract manufacturer.” Source: RevenueBase Database · checked Sep 21, 2026
18	Parpro, Inc.	Partial evidence	Santa Ana, CA, United StatesHQ checked Sep 21, 2026	501-1,000	140 contacts →
	Partial evidence “PARPRO is a full-service contract manufacturing company with an emphasis on EMS and OEM solutions.” Source: RevenueBase Database · checked Sep 21, 2026
19	American Computer Development, Inc. Acdi In Touch With Technology	Partial evidence	Frederick, MD, United StatesHQ checked Sep 21, 2026	51-200	136 contacts →
	Partial evidence “Based in Frederick, MD, Nashville, NC, and Branford, CT, ACDi is an integral resource to companies who need a trusted partner for dynamic electronics manufacturing, engineering…” Source: RevenueBase Database · checked Sep 21, 2026
20	Cal-Comp USA	Partial evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	201-500	135 contacts →
	Partial evidence “Cal-Comp USA, a New Kinpo Group company, is an electronics manufacturing services company offering turn-key production services to the industrial, medical, aerospace, military…” Source: RevenueBase Database · checked Sep 21, 2026
21	Aqs, INC	Partial evidence	Fremont, CA, United StatesHQ checked Sep 21, 2026	501-1,000	130 contacts →
	Partial evidence “Your hassle-free end-to-end electronic manufacturing solutions.” Source: RevenueBase Database · checked Sep 21, 2026
22	Federal Electronics	Partial evidence	Cranston, RI, United StatesHQ checked Sep 21, 2026	201-500	126 contacts →
	Partial evidence “Federal Electronics recognizes that in today’s dynamic business environment, electronics manufacturing services (EMS) providers must offer more than a quality product, delivered…” Source: RevenueBase Database · checked Sep 21, 2026
23	Eastek International Corporation	Partial evidence	Vernon Hills, IL, United StatesHQ checked Sep 21, 2026	501-1,000	120 contacts →
	Partial evidence “Eastek International is a US-owned global contract manufacturer with headquarters in the Chicago suburbs and manufacturing plants in Mexico, Malaysia, and China.” Source: RevenueBase Database · checked Sep 21, 2026
24	Epec Engineered Technologies	Indirect evidence	New Bedford, MA, United StatesHQ checked Sep 21, 2026	51-200	115 contacts →
	Indirect evidence “Epec Engineered Technologies is the ideal choice for an OEM seeking customized product solutions from a focused and agile partner having supported over customers across all…” Source: RevenueBase Database · checked Sep 21, 2026
25	East West Wisconsin	Partial evidence	Whitewater, WI, United StatesHQ checked Sep 21, 2026	201-500	109 contacts →
	Partial evidence “East West Wisconsin (Formerly Universal Electronics, Inc.) has been providing contract electronics manufacturing services to the Medical, Industrial, Scientific Instrumentation…” Source: RevenueBase Database · checked Sep 21, 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: IT manufacturing companies. 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 IT manufacturing companies.
Partial evidence: Its own public description names part of IT manufacturing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT manufacturing companies. 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 559 IT manufacturing companies based in the United States

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IT manufacturing companies based in the United States at a glance

As of Sep 21, 2026

25.9%Verified-email coverage

74.6Average contacts per company

11-50Median size (employees)

3.6%Largest-city concentration · San Jose

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

136

11-50

211

51-200

128

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 559 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 IT manufacturing companies, 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 “IT manufacturing companies”. 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 IT manufacturing companies), 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 IT manufacturing companies, 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, 10,797 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 21, 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.

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 IT manufacturing companies, 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 IT manufacturing companies are there based in the United States?

RevenueBase identified 559 IT manufacturing companies 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 IT manufacturing companies?

San Jose leads with 20 headquartered companies, followed by Fremont (19) and San Diego (11).

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 10,797 verified decision-maker contacts tracked across these 559 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 21, 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.