Company lists · Data refreshed September 2026

Top 25 Automotive parts inspection services based in the United States

Name: Automotive parts inspection services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 417 companies tracked

RevenueBase identified 417 automotive parts inspection services headquartered in the United States as of September 2026 and tracks 8,566 professional contacts across them, including 1,930 with verified work emails. Houston is the largest hub.

This list covers automotive parts inspection services 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 30, 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 30, 2026 86% judged on-target in blind review

417Companies

8,566Contacts tracked

1,930Verified emails

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The 25 largest automotive parts inspection services based in the United States

Ranked by team size

Top 25 of 417 automotive parts inspection services based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to automotive parts inspection services: 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	Stratosphere Quality	Partial evidence	Fishers, IN, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,553 contacts →
	Partial evidence “Stratosphere Quality, founded in 2009, is a major global provider of quality assurance and outsourcing solutions, such as sorting and inspection services, to manufacturers of…” Source: RevenueBase Database · checked Sep 30, 2026
2	Applied Technical Services, LLC	Partial evidence	Marietta, GA, United StatesHQ checked Sep 30, 2026	1,001-5,000	890 contacts →
	Partial evidence “Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.” Source: RevenueBase Database · checked Sep 30, 2026
3	Cardone Industries	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	5,001-10,000	885 contacts →
	Strong evidence “CARDONE is a leading global supplier of remanufactured and new automotive parts for passenger cars and light/medium duty trucks.” Source: RevenueBase Database · checked Sep 30, 2026
4	TÜV Rheinland North America	Partial evidence	Boxborough, MA, United StatesHQ checked Sep 30, 2026	501-1,000	712 contacts →
	Partial evidence “TÜV Rheinland is a world leader in testing, inspection and certification services for a wide variety of industries.” Source: RevenueBase Database · checked Sep 30, 2026
5	Vayan Group, LLC	Partial evidence	Sterling Heights, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	476 contacts →
	Partial evidence “Vayan Group, LLC is a leading provider of technology-driven quality assurance solutions for OEMs, Tier 1 and Tier 2 suppliers across the automotive, aerospace, electronics…” Source: RevenueBase Database · checked Sep 30, 2026
6	MGA Research Corporation	Indirect evidence	Akron, NY, United StatesHQ checked Sep 30, 2026	201-500	224 contacts →
	Indirect evidence “MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.” Source: RevenueBase Database · checked Sep 30, 2026
7	PRO QC International	Indirect evidence	Mchenry, IL, United StatesHQ checked Sep 30, 2026	501-1,000	211 contacts →
	Indirect evidence “Pro QC International provides tailored quality solutions with a human touch in 100 countries.” Source: RevenueBase Database · checked Sep 30, 2026
8	Attc Manufacturing	Indirect evidence	Tell City, United StatesHQ checked Sep 30, 2026	501-1,000	205 contacts →
	Indirect evidence “Established in we specialize in manufacturing brake drums,brake rotors, engine caps, steering knuckles, carriers, and differential cases.” Source: RevenueBase Database · checked Sep 30, 2026
9	Innova Electronics Corp	Partial evidence	Irvine, CA, United StatesHQ checked Sep 30, 2026	51-200	153 contacts →
	Partial evidence “THE AUTOMOTIVE AFTERMARKET INDUSTRY LEADER Innova Electronics Corporation is a leading supplier of test equipment and diagnostic reporting for the automotive aftermarket, offering…” Source: RevenueBase Database · checked Sep 30, 2026
10	Team Quality Services	Indirect evidence	Auburn, IN, United StatesHQ checked Sep 30, 2026	201-500	132 contacts →
	Indirect evidence “We're there, so our customers don’t have to be.” Source: RevenueBase Database · checked Sep 30, 2026
11	Aeis LLC	Partial evidence	South Plainfield, NJ, United StatesHQ checked Sep 30, 2026	201-500	116 contacts →
	Partial evidence “AEIS, LLC is a testing, inspection, and certification (TIC) agency that increases quality and safety outcomes for major infrastructure.” Source: RevenueBase Database · checked Sep 30, 2026
12	Sustained Quality	Strong evidence	South Bend, IN, United StatesHQ checked Sep 30, 2026	51-200	83 contacts →
	Strong evidence “Sustained Quality has been a trusted partner in quality since 2007, delivering inspection, sorting, rework/repair, engineering, and containment services to the automotive…” Source: RevenueBase Database · checked Sep 30, 2026
13	TRP Laboratories	Indirect evidence	Troy, MI, United StatesHQ checked Sep 30, 2026	51-200	70 contacts →
	Indirect evidence “TRP Laboratories provides standard and custom testing services across the United States.” Source: RevenueBase Database · checked Sep 30, 2026
14	Dealer Solutions, Inc. DSI	Strong evidence	New Port Richey, FL, United StatesHQ checked Sep 30, 2026	201-500	58 contacts →
	Strong evidence “DSI's talented team of Automotive Parts Professionals performed over 1,500 parts inventories – over $600 MILLION in parts inventory will be audited in 2022 alone!” Source: RevenueBase Database · checked Sep 30, 2026
15	Michigan Production Machining INC	Indirect evidence	Macomb, MI, United StatesHQ checked Sep 30, 2026	51-200	58 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
16	ONE Guard Inspections	Partial evidence	Plano, TX, United StatesHQ checked Sep 30, 2026	11-50	50 contacts →
	Partial evidence “Our extensive nationwide network, innovative services, and cutting-edge technology make your inspection process faster, more convenient, and hassle-free.” Source: RevenueBase Database · checked Sep 30, 2026
17	Precision JIG & Fixture INC PJF INC	Partial evidence	Rockford, MI, United StatesHQ checked Sep 30, 2026	51-200	49 contacts →
	Partial evidence “Precision Jig and Fixture Inc (PJF Inc) is a full service inspection tooling manufacturer providing top quality products, outstanding service and competitive prices.” Source: RevenueBase Database · checked Sep 30, 2026
18	Quality Team 1	Partial evidence	Highland Park, MI, United StatesHQ checked Sep 30, 2026	201-500	49 contacts →
	Partial evidence “Quality Team 1 is an international ISO 9001-2008 registered service company specializing in inspection and containment with locations in the United States, Canada, and Mexico.” Source: RevenueBase Database · checked Sep 30, 2026
19	MPI Edge	Partial evidence	Las Vegas, NV, United StatesHQ checked Sep 30, 2026	201-500	49 contacts →
	Partial evidence “MPi is the leading provider of vehicle inspection tools, processes and consulting for auto dealer service departments.” Source: RevenueBase Database · checked Sep 30, 2026
20	Alliance Infinite	Partial evidence	New York, United StatesHQ checked Sep 30, 2026	1,001-5,000	48 contacts →
	Partial evidence “Alliance Infinite has consistently maintained its position among the world’s very best quality service providers for Third Party Inspection, Testing, Calibration and Management…” Source: RevenueBase Database · checked Sep 30, 2026
21	Worldwide Environmental	Partial evidence	Brea, CA, United StatesHQ checked Sep 30, 2026	51-200	38 contacts →
	Partial evidence “Since 1984, we have been designing, implementing, operating and servicing various types of motor vehicle emissions and technical/safety inspection programs.” Source: RevenueBase Database · checked Sep 30, 2026
22	X-Ray Industries, INC	Indirect evidence	Troy, MI, United StatesHQ checked Sep 30, 2026	51-200	37 contacts →
	Indirect evidence “Fully committed to ensuring that customer products reach their highest standards of integrity, safety, and reliability, Applus+ XRI has positioned itself as one of the leading…” Source: RevenueBase Database · checked Sep 30, 2026
23	Supplier Inspection Services, INC	Strong evidence	Moraine, OH, United StatesHQ checked Sep 30, 2026	51-200	34 contacts →
	Strong evidence “Supplier Inspection Services, Inc.(SIS, Inc.) is a quality management support services provider that partners with companies worldwide within the Automotive, Aerospace, Appliance…” Source: RevenueBase Database · checked Sep 30, 2026
24	West Coast Inspection Services	Partial evidence	San Diego, CA, United StatesHQ checked Sep 30, 2026	51-200	33 contacts →
	Partial evidence “Our mission is to provide the highest industry standards through quality inspection & testing.” Source: RevenueBase Database · checked Sep 30, 2026
25	Cross Check Quality Inspection	Partial evidence	Bowling Green, KY, United StatesHQ checked Sep 30, 2026	51-200	31 contacts →
	Partial evidence “Cross Check Quality Inspection has over 11 years of experience delivering resources to assist manufacturers/ companies reach their highest standards in product quality.” Source: RevenueBase Database · checked Sep 30, 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 parts inspection services. 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 parts inspection services.
Partial evidence: Its own public description names part of automotive parts inspection services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name automotive parts inspection services. 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 417 automotive parts inspection services based in the United States

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Automotive parts inspection services based in the United States at a glance

As of Sep 30, 2026

22.5%Verified-email coverage

20.5Average contacts per company

1-10Median size (employees)

3.1%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

233

11-50

120

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 417 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 parts inspection services, 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 parts inspection services”. 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 parts inspection services), 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 parts inspection services, 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, 1,930 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 30, 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 parts inspection services, 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 parts inspection services are there based in the United States?

RevenueBase identified 417 automotive parts inspection services 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?

Stratosphere Quality, headquartered in Fishers, tops this list with the largest team on record.

Which city has the most automotive parts inspection services?

Houston leads with 13 headquartered companies, followed by Atlanta (6) and Irvine (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 1,930 verified decision-maker contacts tracked across these 417 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 30, 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.