Company lists · Data refreshed September 2026

Top 25 Vehicle assembly manufacturers based in the United States

Name: Vehicle assembly manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 187 companies tracked

RevenueBase identified 187 vehicle assembly manufacturers headquartered in the United States as of September 2026 and tracks 29,570 professional contacts across them, including 3,665 with verified work emails. Troy is the largest hub.

This list covers vehicle assembly 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 19, 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 19, 2026 86% judged on-target in blind review

187Companies

29,570Contacts tracked

3,665Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest vehicle assembly manufacturers based in the United States

Ranked by team size

Top 25 of 187 vehicle assembly manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to vehicle assembly manufacturers: 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	IAC Group	Indirect evidence	Southfield, MI, United StatesHQ checked Sep 19, 2026	5,001-10,000	5,634 contacts →
	Indirect evidence “Headquartered in Luxembourg, International Automotive Components (IAC) Group is a leading global supplier of automotive components and systems, including instrument panels…” Source: RevenueBase Database · checked Sep 19, 2026
2	Flex-N-Gate	Indirect evidence	Urbana, IL, United StatesHQ checked Sep 19, 2026	10001+	4,298 contacts →
	Indirect evidence “Starting with aftermarket parts in 1956 and moving into O.E.” Source: RevenueBase Database · checked Sep 19, 2026
3	Subaru Of Indiana Automotive	Indirect evidence	Lafayette, IN, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,938 contacts →
	Indirect evidence “Subaru of Indiana Automotive (SIA), part of the Subaru family of companies, is home of North American production for the Ascent, Crosstrek, and Forester models.” Source: RevenueBase Database · checked Sep 19, 2026
4	Autokiniton	Partial evidence	New Boston, MI, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,437 contacts →
	Partial evidence “At AUTOKINITON, we’re more than just an automotive supplier, we’re the backbone of vehicle performance and safety.” Source: RevenueBase Database · checked Sep 19, 2026
5	Dakkota Integrated Systems	Partial evidence	Holt, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	895 contacts →
	Partial evidence “Dakkota Integrated Systems is a company with world-class products that are designed, engineered, and manufactured by a diverse team of talented employees.” Source: RevenueBase Database · checked Sep 19, 2026
6	Avancez LLC	Partial evidence	Clarkston, MI, United StatesHQ checked Sep 19, 2026	201-500	481 contacts →
	Partial evidence “Voltava was formed in December 2025 through the combination of Detroit Manufacturing Systems, Android Industries and Avancez Assembly.” Source: RevenueBase Database · checked Sep 19, 2026
7	Gill Industries	Strong evidence	Grand Rapids, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	472 contacts →
	Strong evidence “As a global supplier of precision engineered assemblies, we design, engineer and manufacture things that move.” Source: RevenueBase Database · checked Sep 19, 2026
8	Bridgewater Interiors	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	398 contacts →
	Indirect evidence “At Bridgewater Interiors, we are focused on manufacturing the best automotive seating systems in the industry.” Source: RevenueBase Database · checked Sep 19, 2026
9	Paslin	Partial evidence	Warren, MI, United StatesHQ checked Sep 19, 2026	501-1,000	359 contacts →
	Partial evidence “Since 1937, Paslin has been a leading innovator in the concept, design, construction and deployment of manufacturing assembly and automation systems.” Source: RevenueBase Database · checked Sep 19, 2026
10	North American Stamping Group	Indirect evidence	Portland, TN, United StatesHQ checked Sep 19, 2026	501-1,000	307 contacts →
	Indirect evidence “North American Stamping Group is a privately held company founded in 1978.” Source: RevenueBase Database · checked Sep 19, 2026
11	Ascent Aerospace	Partial evidence	Macomb, MI, United StatesHQ checked Sep 19, 2026	501-1,000	285 contacts →
	Partial evidence “Ascent Aerospace combines assembly line integration and factory automation with our heritage tooling businesses, to provide turnkey production solutions from one…” Source: RevenueBase Database · checked Sep 19, 2026
12	Inalfa Roof Systems North America	Partial evidence	Auburn Hills, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	254 contacts →
	Partial evidence “Inalfa Roof Systems North America is comprised of several companies in the United States and Mexico that engineer and assemble several models of sunroof systems as a tier one…” Source: RevenueBase Database · checked Sep 19, 2026
13	Tasus Corporation	Indirect evidence	Bloomington, IN, United StatesHQ checked Sep 19, 2026	201-500	242 contacts →
	Indirect evidence “TASUS Corporation is a Tier One supplier to Toyota Motor Manufacturing North America and a Tier Two supplier to OEM automotive and transportation markets.” Source: RevenueBase Database · checked Sep 19, 2026
14	Minth North America, INC	Indirect evidence	Wixom, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	195 contacts →
	Indirect evidence “Minth Group stands as a global leader in the manufacturing of exterior and structural automotive parts.” Source: RevenueBase Database · checked Sep 19, 2026
15	JR Automation- Esys Division	Strong evidence	Auburn Hills, MI, United StatesHQ checked Sep 19, 2026	51-200	183 contacts →
	Strong evidence “Esys Automation, a JR Automation company, is a leading full-service automation solutions provider, specializing in vehicle assembly applications in areas such as press…” Source: RevenueBase Database · checked Sep 19, 2026
16	LM Manufacturing	Partial evidence	Detroit, MI, United StatesHQ checked Sep 19, 2026	201-500	156 contacts →
	Partial evidence “LM Manufacturing provides manufacturing, assembly, sequencing, supply chain and logistics management for complete seat assemblies and other value-added modular assemblies for…” Source: RevenueBase Database · checked Sep 19, 2026
17	Enovapremier, LLC	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 19, 2026	201-500	135 contacts →
	Indirect evidence “EnovaPremier, LLC is an automotive company based out of 1630 Lyndon Farm Court Suite 100, Louisville, Kentucky, United States.” Source: RevenueBase Database · checked Sep 19, 2026
18	TMI Automotive Products, INC	Partial evidence	Corona, CA, United StatesHQ checked Sep 19, 2026	201-500	108 contacts →
	Partial evidence “TMI Products manufactures in the USA a full line of high-value interior automotive components like seating, interior consoles, floor coverings, door panels, convertible roof…” Source: RevenueBase Database · checked Sep 19, 2026
19	Keihin North America	Indirect evidence	Anderson, IN, United StatesHQ checked Sep 19, 2026	1,001-5,000	97 contacts →
	Indirect evidence “Keihin is the maker of the worlds finest automotive components.” Source: RevenueBase Database · checked Sep 19, 2026
20	UHI Group	Partial evidence	Sterling Heights, MI, United StatesHQ checked Sep 19, 2026	51-200	94 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
21	Austin Tri-Hawk Automotive, INC	Indirect evidence	Austin, IN, United StatesHQ checked Sep 19, 2026	201-500	87 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
22	Gedia North America	Indirect evidence	Dalton, GA, United StatesHQ checked Sep 19, 2026	1,001-5,000	82 contacts →
	Indirect evidence “Ready for the Next Car.” Source: RevenueBase Database · checked Sep 19, 2026
23	Futaba Indiana Of America	Indirect evidence	Vincennes, IN, United StatesHQ checked Sep 19, 2026	501-1,000	72 contacts →
	Indirect evidence “Welcome to Futaba Indiana of America (FIA)!” Source: RevenueBase Database · checked Sep 19, 2026
24	Dortec Industries	Indirect evidence	Livonia, MI, United StatesHQ checked Sep 19, 2026	51-200	59 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
25	Michigan Production Machining INC	Indirect evidence	Macomb, MI, United StatesHQ checked Sep 19, 2026	51-200	58 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 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: vehicle assembly 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 vehicle assembly manufacturers.
Partial evidence: Its own public description names part of vehicle assembly manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name vehicle assembly 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 187 vehicle assembly manufacturers based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,665 reachable decision-makers.

Free signup · no credit card

View the full list →

Vehicle assembly manufacturers based in the United States at a glance

As of Sep 19, 2026

12.4%Verified-email coverage

158.1Average contacts per company

51-200Median size (employees)

2.7%Largest-city concentration · Troy

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 187 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 vehicle assembly 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 “vehicle assembly 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 vehicle assembly 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 vehicle assembly 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, 3,665 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 19, 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 vehicle assembly 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 vehicle assembly manufacturers are there based in the United States?

RevenueBase identified 187 vehicle assembly 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?

IAC Group, headquartered in Southfield, tops this list with the largest team on record.

Which city has the most vehicle assembly manufacturers?

Troy leads with 5 headquartered companies, followed by Auburn Hills (4) and Detroit (4).

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 3,665 verified decision-maker contacts tracked across these 187 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 187 vehicle assembly manufacturers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Vehicle assembly manufacturers by geography

Browse the directory

Browse: Companies home · All United States lists · All Vehicle assembly manufacturers lists · New lists

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.