Company lists · Data refreshed September 2026
Top 25 Oem manufacturers based in the United States
RevenueBase identified 211 oem manufacturers headquartered in the United States as of September 2026 and tracks 3,334 professional contacts across them, including 886 with verified work emails. Irvine is the largest hub.
This list covers oem 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 17, 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.
The 25 largest oem manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 627 contacts → | ||||
Strong evidence “e-con Systems® designs, develops, and manufactures embedded vision solutions from custom OEM cameras to complete ODM platforms.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 275 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 3 | 166 contacts → | ||||
Partial evidence “UPG is a US based Original Design Manufacturer (ODM), contract manufacturer, and plastics injection molder.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 157 contacts → | ||||
Strong evidence “Katecho is an internationally recognized, full service original equipment manufacturer (OEM) specializing in medical and cosmetic devices.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 5 | 121 contacts → | ||||
Strong evidence “TPI Corporation is an OEM manufacturer of electric heat equipment, process heat ovens, ventilation products & fans, lighting equipment, and custom thermostatic controls for…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 6 | 117 contacts → | ||||
Strong evidence “Founded in 1981, Lexington Manufacturing is a premier OEM supplier and contract manufacturer specializing in close-tolerance components for the fenestration industry.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 83 contacts → | ||||
Partial evidence “Manufacturing Solutions Inc.(MSI) is a Vermont-based contract manufacturing partner supporting OEMs with reliable, high-quality production and scalable manufacturing solutions.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 73 contacts → | ||||
Indirect evidence “We specialize in solving problems and saving money for our customers.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 71 contacts → | ||||
Strong evidence “McMillan Electric Company is a custom motor manufacturer for OEMs.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 10 | 60 contacts → | ||||
Indirect evidence “At SYNCRO, we are committed to serving as a seamless extension of our customers’ manufacturing needs.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 50 contacts → | ||||
Strong evidence “Located in Longmont, Colorado, Osypka Medtec is an Original Equipment Manufacturer (OEM) and is dedicated to working with medial device manufacturers and suppliers to manufacture…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 49 contacts → | ||||
Partial evidence “Lakeview Industries is a woman-owned manufacturing company located in Carver Minnesota who sells to large OEM's with notable brands.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 46 contacts → | ||||
Partial evidence “CS & P TECHNOLOGIES, established in 1973 is recognized globally as an OEM of Mobile Oil Field Equipment, has a sustained reputation in the energy industry for providing…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 42 contacts → | ||||
Strong evidence “WELLEX is a full-service electronic contract manufacturer, founded in 1983 to support OEM companies with all phases of their manufacturing requirements, from product design…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 15 | 41 contacts → | ||||
Partial evidence “Catapult Global, LLC was formed in 2004 with the aim of offering customer’s high-quality, OEM/ODM products at reasonable prices, on-time.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 16 | 37 contacts → | ||||
Partial evidence “Precision Coils specializes in manufacturing competitively-priced, precision-engineered replacement coils and OEM coils that always fit and are always on-time.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 31 contacts → | ||||
Partial evidence “Integrated Circuit Solutions is an industry leading UL Listed OEM based in Houston, Tx.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 30 contacts → | ||||
Strong evidence “Manufacturers of Engineered OEM Components.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 19 | 28 contacts → | ||||
Strong evidence “LACO is a full service Contract Manufacturer, providing OEM companies in all parts of today’s technological spectrum with solutions for all their electrical assembly needs.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 26 contacts → | ||||
Strong evidence “Innovative Products of America (IPA®) is a family-owned and operated Original Equipment Manufacturer (OEM).” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 21 | 26 contacts → | ||||
Strong evidence “STOCK'D Supply’s mission is to be the OEM manufacturer and Vendor Managed Inventory fastener partner of choice as a sound, responsive and profitable partner, to supply goods and…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 25 contacts → | ||||
Strong evidence “CBM Industries partners with OEMs to manufacture complex electromechanical systems, precision structures, and integrated assemblies - from prototype and NPI through full…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 23 contacts → | ||||
Strong evidence “CIC North America (CIC‑NA) is a global OEM supply‑chain partner helping manufacturers reduce costs, ensure quality, and strengthen supply‑chain reliability.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 21 contacts → | ||||
Strong evidence “KT Technical Solutions is an exclusive manufacturer’s representative for best-in-class OEM’s.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 25 | 21 contacts → | ||||
Partial evidence “Eternity Wireless, founded in 2001, has been a leader in the market for the distribution of branded accessories, OEM accessories, and aftermarket complementary device products.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
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: oem 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 oem manufacturers.
- Partial evidence
- Its own public description names part of oem manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name oem 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 211 oem manufacturers based in the United States
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Oem manufacturers based in the United States at a glance
As of Sep 17, 2026Companies by employee count
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 211 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 oem 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 “oem 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 oem 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 oem 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, 886 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 17, 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 oem 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 oem manufacturers are there based in the United States?
RevenueBase identified 211 oem 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?
E-Con Systems, headquartered in Fremont, tops this list with the largest team on record.
Which city has the most oem manufacturers?
Irvine leads with 4 headquartered companies, followed by Austin (3) and City Of Industry (3).
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 886 verified decision-maker contacts tracked across these 211 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 17, 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.