Company lists · Data refreshed October 2026

Top 25 Complex assembly services based in the United States

RevenueBase identified 383 company matches for complex assembly services associated with the United States as of October 2026 and tracks 6,193 professional contacts across them, including 1,551 with verified work emails. San Jose is the largest hub.

This list covers company matches for complex assembly services 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 23, 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 23, 2026 How this list was built
383Companies
6,193Contacts tracked
1,551Verified emails
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The 25 largest complex assembly services based in the United States

Ranked by team size
Top 25 of 383 company matches for complex assembly services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 23, 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 matchWoodinville, WA, United StatesHQ recorded Oct 23, 2026501-1,000252 contacts →

Exact match

“NIC Global is a single-source manufacturer providing turn-key mechanical and electromechanical assembly, expert sheet metal fabrication, and global sourcing of metal and plastic…”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
2Exact matchRochester, NY, United StatesHQ recorded Oct 23, 2026201-500179 contacts →

Exact match

“PEKO is a leading contract manufacturer providing full-service, end-to-end manufacturing of large-scale machinery, complex equipment, and major electro-mechanical assemblies for…”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
3Exact matchSeneca, PA, United StatesHQ recorded Oct 23, 2026201-500171 contacts →

Exact match

“Matric Group is a contract manufacturer of electronic assemblies, offering world-class Electronic Manufacturing Services (EMS) with personalized customer support, working closely…”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
4Exact matchDetroit, MI, United StatesHQ recorded Oct 23, 2026201-500170 contacts →

Exact match

“LM Manufacturing provides manufacturing, assembly, sequencing, supply chain and logistics management for complete seat assemblies and other value-added modular assemblies for…”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
5Exact matchHiawatha, IA, United StatesHQ recorded Oct 23, 2026201-500126 contacts →

Exact match

“WCI is known for providing high-quality complex assembly and kitting to global OEMs and small-to-medium-sized product manufacturing companies.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
6Exact matchSussex, WI, United StatesHQ recorded Oct 23, 2026201-500121 contacts →

Exact match

“An accomplished custom injection molder and automated assembly company with more than four decades of proven success.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
7Exact matchOshkosh, United StatesHQ recorded Oct 23, 2026201-500102 contacts →

Exact match

“Muza Metal Products is a full-service, metal-based parts supplier that uses a collaborative approach with customers.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
8Exact matchSterling Heights, MI, United StatesHQ recorded Oct 23, 202651-20093 contacts →

Exact match

“UHI started in 1979, and has grown from a small niche supplier of hydroformed details to a full service stamping and assembly supplier for the automotive and aerospace industries.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
9Exact matchBristol, CT, United StatesHQ recorded Oct 23, 202651-20089 contacts →

Exact match

“The Arthur G Russell Company goes beyond building you an automated assembly machine.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
10Exact matchFairview, PA, United StatesHQ recorded Oct 23, 2026201-50087 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
11Exact matchHarwood Heights, IL, United StatesHQ recorded Oct 23, 2026201-50082 contacts →

Exact match

“QCC acquire non-core and aging product lines and provide Manufacturing-as-a-Service for localization efforts, simplification and factory closures.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
12Exact matchMinnetonka, MN, United StatesHQ recorded Oct 23, 2026201-50081 contacts →

Exact match

“MultiSource Manufacturing LLC, is a customer-focused contract manufacturer that provides high quality and affordable engineering and fabrication services for the aerospace…”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
13Exact matchHudsonville, MI, United StatesHQ recorded Oct 23, 202651-20076 contacts →

Exact match

“Altron designs and builds turn-key systems, composite bonding, metal welding, conveyor assembly, testing, assembly, material handling, reinforced plastics, CNC and robotic…”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
14Exact matchLincoln, NE, United StatesHQ recorded Oct 23, 2026201-50070 contacts →

Exact match

“Founded in 1974 in Lincoln, Nebraska, TMCO has grown from a small machine shop into a total contract manufacturer with more than 230 employees.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
15Exact matchJackson, MI, United StatesHQ recorded Oct 23, 202651-20069 contacts →

Exact match

“Orbitform experts deliver the right fastening, forming, and assembly solutions so manufacturers can achieve their desired outcome.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
16Exact matchAledo, IL, United StatesHQ recorded Oct 23, 2026201-50068 contacts →

Exact match

“General Grind & Machine, Inc.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
17Exact matchJoplin, MO, United StatesHQ recorded Oct 23, 2026201-50067 contacts →

Exact match

“Established in 1954 and headquartered in Joplin, Missouri, Able Manufacturing & Assembly, LLC, is a full-service supplier specializing in light metal fabrication and welding…”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
18Exact matchRochester, NY, United StatesHQ recorded Oct 23, 2026201-50062 contacts →

Exact match

“ISO 9001:2015 Registered ISO/ITAR & TS 16949 Compliant AS9100 – Supported by our Quality Systems Manual NAICS 332116,332312,332710,541330,541490 ISO 14001 – Pursuing registration…”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Oct 23, 2026201-50062 contacts →

Exact match

“Large, complex product assembly.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
20Exact matchSouth Paris, ME, United StatesHQ recorded Oct 23, 202651-20062 contacts →

Exact match

“Maine Machine Products Company is a squ.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
21Exact matchMequon, WI, United StatesHQ recorded Oct 23, 202651-20060 contacts →

Exact match

“With over 40 years of experience, GMI Solutions is a trusted partner for capital equipment OEMs, specializing in the outsourcing of contract assembly and test for…”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
22Exact matchSan Antonio, TX, United StatesHQ recorded Oct 23, 2026201-50054 contacts →

Exact match

“Forma brings together the ideal combination of manufacturing and assembly experience, human resource expertise, and continuous improvement culture.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
23Exact matchRiverside, CA, United StatesHQ recorded Oct 23, 202651-20054 contacts →

Exact match

“Contract manufacturer and engineering service provider offering customized solutions through value-added services for electromechanical and mechanical components and assemblies.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
24Exact matchClinton, United StatesHQ recorded Oct 23, 202651-20051 contacts →

Exact match

“MAG is a world class supplier of integrative mechanical and electro-mechanical assemblies for the automotive industry.”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
25Exact matchSanta Ana, CA, United StatesHQ recorded Oct 23, 2026201-50049 contacts →

Exact match

“Since 1977, Fabcon has been providing manufacturing services to a diverse range of customers and industries based in both domestic and international markets earning a stellar…”

Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase

Showing 25 of 383 complex assembly services based in the United States

See the full list, filter by size, metro and specialty, and access 1,551 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Complex assembly services based in the United States at a glance

As of Oct 23, 2026
25.0%Verified-email coverage
16.2Average contacts per company
11-50Median size (employees)
1.8%Largest-city concentration · San Jose
Oct 23, 2026Page data refreshed

Companies by employee count

1-10
101
11-50
163
51-200
83
201-500
30
501-1,000
4
1,001-5,000
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 383 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 “complex assembly services” 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 1,551 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 23, 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 “complex assembly services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many complex assembly services are there based in the United States?

RevenueBase identified 383 company matches for complex assembly services 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?

NIC Global Manufacturing Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most complex assembly services?

San Jose leads with 7 company records, followed by Santa Clara (5) and Denver (4).

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 1,551 professional contacts with verified work emails tracked across these 383 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 23, 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.