Company lists · Data refreshed October 2026

Top 25 Mechanical assembly manufacturers based in the United States

RevenueBase identified 6,030 company matches for mechanical assembly manufacturers associated with the United States as of October 2026 and tracks 91,687 professional contacts across them, including 22,681 with verified work emails. Houston is the largest hub.

This list covers company matches for mechanical assembly manufacturers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 18, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 18, 2026 How this list was built
6,030Companies
91,687Contacts tracked
22,681Verified emails
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The 25 largest mechanical assembly manufacturers based in the United States

Ranked by team size
Top 25 of 6,030 company matches for mechanical assembly manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCosta Mesa, CA, United StatesHQ recorded Oct 18, 20261,001-5,0001,522 contacts →

Exact match

“Founded in 1849, Ducommun is the oldest company in California.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2Exact matchSedro-woolley, WA, United StatesHQ recorded Oct 18, 20261,001-5,000989 contacts →

Exact match

“Janicki is a privately-owned engineering and manufacturing company with locations in Washington and Utah.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3Exact matchMayville, WI, United StatesHQ recorded Oct 18, 20261,001-5,000950 contacts →

Exact match

“We are more than just a manufacturing and fabricating company.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4Exact matchStoughton, WI, United StatesHQ recorded Oct 18, 20261,001-5,000918 contacts →

Exact match

“Nelson Global designs, manufactures, and distributes custom solutions for customers across crucial industries worldwide.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5Exact matchSomerset, NJ, United StatesHQ recorded Oct 18, 2026501-1,000769 contacts →

Exact match

“MICRO is a full service contract manufacturer that draws on more than 80 years of experience in medical device assembly, precision metal stamping, insert and injection molding…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6Exact matchChino, CA, United StatesHQ recorded Oct 18, 20261,001-5,000609 contacts →

Exact match

“Trend Technologies is a vertically integrated mechanical solutions provider specializing in the areas of metal stamping, metal fabrication and injection molding.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7Exact matchCharlotte, NC, United StatesHQ recorded Oct 18, 20261,001-5,000554 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8Exact matchGrand Rapids, MI, United StatesHQ recorded Oct 18, 20261,001-5,000496 contacts →

Exact match

“As a global supplier of precision engineered assemblies, we design, engineer and manufacture things that move.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9Exact matchArlington, VT, United StatesHQ recorded Oct 18, 20261,001-5,000472 contacts →

Exact match

“Mack Molding Co, headquartered in Arlington, VT, provides design through FDA-approved manufacturing services to the medical, commercial, computer & business equipment, energy and…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10Exact matchSt. Louis, MO, United StatesHQ recorded Oct 18, 2026501-1,000434 contacts →

Exact match

“The Gund Company is a vertically integrated manufacturer and fabricator of engineered material solutions.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11Exact matchBossier City, LA, United StatesHQ recorded Oct 18, 2026501-1,000422 contacts →

Exact match

“Since 1963, McElroy Metal has grown from humble beginnings into a national leader in the metal components industry.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12Exact matchChelsea, MI, United StatesHQ recorded Oct 18, 2026501-1,000410 contacts →

Exact match

“Hatch is recognized as a world class leader in the design and manufacturing of metal stampings and assemblies.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13Exact matchWarren, MI, United StatesHQ recorded Oct 18, 2026501-1,000389 contacts →

Exact match

“Since 1937, Paslin has been a leading innovator in the concept, design, construction and deployment of manufacturing assembly and automation systems.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14Exact matchFreeport, PA, United StatesHQ recorded Oct 18, 2026501-1,000367 contacts →

Exact match

“Oberg Industries is a global contract manufacturer producing precision machined and stamped metal components, tooling, and assemblies for some of the world’s most recognized…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact matchLadson, SC, United StatesHQ recorded Oct 18, 2026501-1,000366 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16Exact matchVestavia Hills, AL, United StatesHQ recorded Oct 18, 20261,001-5,000353 contacts →

Exact match

“O’Neal Manufacturing Services (OMS) is a supplier of fabricated metal components and welded assemblies.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17Exact matchGrand Rapids, MI, United StatesHQ recorded Oct 18, 2026501-1,000334 contacts →

Exact match

“ArtiFlex Manufacturing is a global leader in design, tooling, automation, past model service, factory assist, and low-volume tooling and production solutions.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchOgden, UT, United StatesHQ recorded Oct 18, 2026501-1,000322 contacts →

Exact match

“Founded in 1961 and incorporated in Utah in 1980, Petersen Inc.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact matchNiles, MI, United StatesHQ recorded Oct 18, 20261,001-5,000318 contacts →

Exact match

“Modineer is your partner for quality metal components.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20Exact matchHarrison, OH, United StatesHQ recorded Oct 18, 2026201-500315 contacts →

Exact match

“Cincinnati Incorporated (CI) is a U.S-based, build-to-order machine tool manufacturer with over 120 years in the industry.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21Exact matchNew Britain, CT, United StatesHQ recorded Oct 18, 2026201-500315 contacts →

Exact match

“AVNA (formerly OKAY Industries) is a contract manufacturing partner for leading medical device OEMs.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22Exact matchKansas City, MO, United StatesHQ recorded Oct 18, 2026501-1,000312 contacts →

Exact match

“Orizon manufactures large complex structural components, provides metal finish processing, and fabricates major sub-assemblies for leading airframe manufacturers in the commercial…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23Exact matchMayville, WI, United StatesHQ recorded Oct 18, 2026501-1,000308 contacts →

Exact match

“Headquartered in Mayville, Wisconsin, Metalcraft of Mayville Inc.(MOM) has become a leading metal fabricator and manufacturer for customers across the US.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24Exact matchEverett, WA, United StatesHQ recorded Oct 18, 2026501-1,000301 contacts →

Exact match

“For 75+ years Vaupell has been providing global precision components and assemblies to top-tier OEMs, leading growth companies, and start-ups for the aerospace, medical, and the…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25Exact matchTualatin, OR, United StatesHQ recorded Oct 18, 2026201-500292 contacts →

Exact match

“Ascentec Engineering was founded in 2001 by a team of process and manufacturing engineers all with a solid background in electronics manufacturing processes.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase

Showing 25 of 6,030 mechanical assembly manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 22,681 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mechanical assembly manufacturers based in the United States at a glance

As of Oct 18, 2026
24.7%Verified-email coverage
15.2Average contacts per company
11-50Median size (employees)
1.4%Largest-city concentration · Houston
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
1,769
11-50
2,520
51-200
1,380
201-500
233
501-1,000
68
1,001-5,000
35
5,001-10,000
2
10001+
2

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 6,030 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “mechanical assembly manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 22,681 professional contacts with verified work emails across the full matched dataset. 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 October 18, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “mechanical assembly manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mechanical assembly manufacturers are there based in the United States?

RevenueBase identified 6,030 company matches for mechanical assembly manufacturers associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Ducommun Incorporated tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most mechanical assembly manufacturers?

Houston leads with 87 company records, followed by Rochester (37) and San Jose (36).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 22,681 professional contacts with verified work emails tracked across these 6,030 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 18, 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 SmartSearch, 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.