Company lists · Data refreshed September 2026

Top 25 Automotive material suppliers based in the United States

Name: Automotive material suppliers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 301 companies tracked

RevenueBase identified 301 automotive material suppliers headquartered in the United States as of September 2026 and tracks 43,191 professional contacts across them, including 7,696 with verified work emails. Auburn Hills is the largest hub.

This list covers automotive material suppliers 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 16, 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 16, 2026 86% judged on-target in blind review

301Companies

43,191Contacts tracked

7,696Verified emails

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The 25 largest automotive material suppliers based in the United States

Ranked by team size

Top 25 of 301 automotive material suppliers based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to automotive material suppliers: 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	Strong evidence	Southfield, MI, United StatesHQ checked Sep 16, 2026	5,001-10,000	5,634 contacts →
	Strong 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 16, 2026
2	TI Automotive	Strong evidence	Auburn Hills, MI, United StatesHQ checked Sep 16, 2026	10001+	4,781 contacts →
	Strong evidence “TI Automotive is the market-leading Tier 1 supplier formed through ABC Technologies’ acquisition of TI Fluid Systems in April 2025.” Source: RevenueBase Database · checked Sep 16, 2026
3	Flex-N-Gate	Indirect evidence	Urbana, IL, United StatesHQ checked Sep 16, 2026	10001+	4,298 contacts →
	Indirect evidence “Starting with aftermarket parts in 1956 and moving into O.E.” Source: RevenueBase Database · checked Sep 16, 2026
4	SRG Global	Partial evidence	Troy, MI, United StatesHQ checked Sep 16, 2026	5,001-10,000	1,981 contacts →
	Partial evidence “SRG Global® is one of the world’s leading manufacturers of integrated, functional decorative systems for the automotive, mobility, and commercial truck industries.” Source: RevenueBase Database · checked Sep 16, 2026
5	Tower International	Indirect evidence	New Boston, MI, United StatesHQ checked Sep 16, 2026	5,001-10,000	1,774 contacts →
	Indirect evidence “Tower International now AUTOKINITON!” Source: RevenueBase Database · checked Sep 16, 2026
6	Shape Corp	Indirect evidence	Grand Haven, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,636 contacts →
	Indirect evidence “We are thinkers, believers and doers.” Source: RevenueBase Database · checked Sep 16, 2026
7	US Farathane	Indirect evidence	Auburn Hills, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,163 contacts →
	Indirect evidence “At US Farathane, we design and manufacture highly engineered plastic injection-molded components, make them available to you in a variety of sizes, shapes, and designs and supply…” Source: RevenueBase Database · checked Sep 16, 2026
8	Summit Polymers	Strong evidence	Portage, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,150 contacts →
	Strong evidence “Summit Polymers is a leading Tier 1 Automotive Supplier of automotive interior systems.” Source: RevenueBase Database · checked Sep 16, 2026
9	Challenge Manufacturing	Strong evidence	Walker, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,137 contacts →
	Strong evidence “Founded in 1981, Challenge Manufacturing is a leading global Tier 1 supplier of complex assemblies and engineered metal formed products to the automotive industry.” Source: RevenueBase Database · checked Sep 16, 2026
10	PCC Aerostructures	Partial evidence	Bellevue, WA, United StatesHQ checked Sep 16, 2026	10001+	689 contacts →
	Partial evidence “PCC Aerostructures is a vertically integrated Tier II supplier of build-to-print metallic and composite parts, kits, and assemblies to the global aerospace industry.” Source: RevenueBase Database · checked Sep 16, 2026
11	Jvis USA	Strong evidence	Shelby Township, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	602 contacts →
	Strong evidence “When it comes to the world of automotive components, JVIS has continued to be the supplier of choice for leading global brands.” Source: RevenueBase Database · checked Sep 16, 2026
12	Mayco International	Strong evidence	Sterling Heights, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	598 contacts →
	Strong evidence “Mayco International is a global Tier 1 automotive supplier to automotive companies.” Source: RevenueBase Database · checked Sep 16, 2026
13	HFI	Strong evidence	Canal Winchester, OH, United StatesHQ checked Sep 16, 2026	1,001-5,000	581 contacts →
	Strong evidence “HFI is a leading Tier II automotive supplier of high quality interior parts such as headrests, armrests, consoles, and other seating and door components.” Source: RevenueBase Database · checked Sep 16, 2026
14	Royal Technologies Corp	Partial evidence	Hudsonville, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	492 contacts →
	Partial evidence “Royal Technologies is an advanced engineering and manufacturing company serving industries as diverse as automotive, furniture, and consumer products.” Source: RevenueBase Database · checked Sep 16, 2026
15	Neaton Auto Products, Mfg, INC	Strong evidence	Eaton, OH, United StatesHQ checked Sep 16, 2026	501-1,000	411 contacts →
	Strong evidence “Neaton Auto Products Manufacturing is a tier one automotive industry supplier of high quality products that impress as well as perform.” Source: RevenueBase Database · checked Sep 16, 2026
16	KI Industries, INC	Partial evidence	Berkeley, IL, United StatesHQ checked Sep 16, 2026	501-1,000	404 contacts →
	Partial evidence “KI Industries, founded in 1964, specializes in the design and manufacture of decorative plastic and die cast components for the automotive and appliance industry.” Source: RevenueBase Database · checked Sep 16, 2026
17	DEE Zee, INC	Partial evidence	Des Moines, IA, United StatesHQ checked Sep 16, 2026	1,001-5,000	392 contacts →
	Partial evidence “As a staple of the automotive aftermarket since 1977, we’ve spent decades providing reliable truck and SUV accessories for the hardworking men and women who keep America moving.” Source: RevenueBase Database · checked Sep 16, 2026
18	Janesville Acoustics	Strong evidence	Southfield, MI, United StatesHQ checked Sep 16, 2026	201-500	342 contacts →
	Strong evidence “Janesville is a leading producer of automotive felt-based molded and die-cut products, operating as a Tier I and Tier II supplier to the automotive and transportation industry.” Source: RevenueBase Database · checked Sep 16, 2026
19	North American Stamping Group	Indirect evidence	Portland, TN, United StatesHQ checked Sep 16, 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 16, 2026
20	Midway Products Group, INC	Strong evidence	Monroe, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	266 contacts →
	Strong evidence “Midway Products Group, is a Tier 1 supplier that manufactures and assembles components and subassemblies primarily for the automotive industry.” Source: RevenueBase Database · checked Sep 16, 2026
21	Angstrom Automotive Group LLC	Partial evidence	Taylor, MI, United StatesHQ checked Sep 16, 2026	51-200	254 contacts →
	Partial evidence “Angstrom Automotive Group LLC is an Automotive company located in 26980Trolley Industrial Dr, Taylor, Michigan, United States.” Source: RevenueBase Database · checked Sep 16, 2026
22	Heartland Automotive LLC	Partial evidence	Greencastle, IN, United StatesHQ checked Sep 16, 2026	1,001-5,000	244 contacts →
	Partial evidence “Heartland Automotive is a LLC tier one automotive parts manufacturer and is dedicated to serve the automotive industry; as well as to enrich the life of the local communities.” Source: RevenueBase Database · checked Sep 16, 2026
23	Tasus Corporation	Strong evidence	Bloomington, IN, United StatesHQ checked Sep 16, 2026	201-500	242 contacts →
	Strong 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 16, 2026
24	The Haartz Corporation	Strong evidence	Acton, MA, United StatesHQ checked Sep 16, 2026	201-500	226 contacts →
	Strong evidence “The Haartz Corporation is a world leader in highly engineered and uniquely designed convertible topping and automotive interior surface materials.” Source: RevenueBase Database · checked Sep 16, 2026
25	Kobelco Aluminum Automotive Products LLC	Strong evidence	Bowling Green, KY, United StatesHQ checked Sep 16, 2026	501-1,000	225 contacts →
	Strong evidence “Kobelco Aluminum Automotive Products (KAAP) is part of the Kobe Steel Group, which is known internationally by the KOBELCO brand and for quality materials and machinery.” Source: RevenueBase Database · checked Sep 16, 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: automotive material suppliers. 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 automotive material suppliers.
Partial evidence: Its own public description names part of automotive material suppliers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name automotive material suppliers. 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 301 automotive material suppliers based in the United States

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Automotive material suppliers based in the United States at a glance

As of Sep 16, 2026

17.8%Verified-email coverage

143.5Average contacts per company

51-200Median size (employees)

3.0%Largest-city concentration · Auburn Hills

Sep 16, 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 301 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 automotive material suppliers, 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 “automotive material suppliers”. 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 automotive material suppliers), 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 automotive material suppliers, 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, 7,696 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 16, 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 automotive material suppliers, 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 automotive material suppliers are there based in the United States?

RevenueBase identified 301 automotive material suppliers 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 automotive material suppliers?

Auburn Hills leads with 9 headquartered companies, followed by Southfield (6) and Troy (6).

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 7,696 verified decision-maker contacts tracked across these 301 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 16, 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.