Company lists · Data refreshed September 2026

Top 25 Aerospace quality testing services based in the United States

Name: Aerospace quality testing 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 460 companies tracked

RevenueBase identified 460 aerospace quality testing services headquartered in the United States as of September 2026 and tracks 22,547 professional contacts across them, including 8,238 with verified work emails. Houston is the largest hub.

This list covers aerospace quality testing 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

460Companies

22,547Contacts tracked

8,238Verified emails

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The 25 largest aerospace quality testing services based in the United States

Ranked by team size

Top 25 of 460 aerospace quality testing 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 aerospace quality testing 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	UL Solutions	Indirect evidence	Northbrook, IL, United StatesHQ checked Sep 30, 2026	10001+	12,316 contacts →
	Indirect evidence “A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110…” Source: RevenueBase Database · checked Sep 30, 2026
2	NTS	Indirect evidence	Belcamp, MD, United StatesHQ checked Sep 30, 2026	201-500	915 contacts →
	Indirect evidence “Element U.S.” Source: RevenueBase Database · checked Sep 30, 2026
3	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
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	Strong evidence	Sterling Heights, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	476 contacts →
	Strong 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	FST Technical Services	Partial evidence	Chandler, AZ, United StatesHQ checked Sep 30, 2026	201-500	381 contacts →
	Partial evidence “Life Cycle Testing, Inspection, Certification & Engineering Solutions for Mission Critical Facilities Worldwide Commitment to Diversity – FST is dedicated to non-discriminatory…” Source: RevenueBase Database · checked Sep 30, 2026
7	Calspan	Strong evidence	Buffalo, NY, United StatesHQ checked Sep 30, 2026	501-1,000	356 contacts →
	Strong evidence “Calspan is an industry-leading research and testing partner to the great innovators of the aerospace and automotive industry.” Source: RevenueBase Database · checked Sep 30, 2026
8	Intertek Building & Construction	Indirect evidence	Arlington Heights, IL, United StatesHQ checked Sep 30, 2026	10001+	241 contacts →
	Indirect evidence “Market Access.” Source: RevenueBase Database · checked Sep 30, 2026
9	MGA Research Corporation	Partial evidence	Akron, NY, United StatesHQ checked Sep 30, 2026	201-500	224 contacts →
	Partial evidence “MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.” Source: RevenueBase Database · checked Sep 30, 2026
10	PRO QC International	Partial evidence	Mchenry, IL, United StatesHQ checked Sep 30, 2026	501-1,000	211 contacts →
	Partial evidence “Pro QC International provides tailored quality solutions with a human touch in 100 countries.” Source: RevenueBase Database · checked Sep 30, 2026
11	Consolidated Engineering Laboratories	Partial evidence	San Ramon, CA, United StatesHQ checked Sep 30, 2026	201-500	201 contacts →
	Partial evidence “At Consolidated Engineering Laboratories (CEL) we consider ourselves more than a Testing Laboratory.” Source: RevenueBase Database · checked Sep 30, 2026
12	PRI Performance Review Institute	Indirect evidence	Warrendale, PA, United StatesHQ checked Sep 30, 2026	51-200	200 contacts →
	Indirect evidence “Performance Review Institute® (PRI℠) is headquartered in Pittsburgh, Pennsylvania in the USA, with offices in London, UK to serve Europe and in Beijing, China and Aichi, Japan…” Source: RevenueBase Database · checked Sep 30, 2026
13	Smith-Emery	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 30, 2026	201-500	150 contacts →
	Partial evidence “Smith-Emery has been providing inspection and materials testing services for public agencies and private companies for the past 113 years.” Source: RevenueBase Database · checked Sep 30, 2026
14	JAN X-Ray Services, INC	Partial evidence	Parma, MI, United StatesHQ checked Sep 30, 2026	201-500	143 contacts →
	Partial evidence “JANX is a leader in nondestructive testing and inspection solutions with offices throughout the USA.” Source: RevenueBase Database · checked Sep 30, 2026
15	Element U.S. Space & Defense	Indirect evidence	Belcamp, MD, United StatesHQ checked Sep 30, 2026	201-500	139 contacts →
	Indirect evidence “Element U.S.” Source: RevenueBase Database · checked Sep 30, 2026
16	CGI Coastal Gulf & International	Partial evidence	Saint Rose, LA, United StatesHQ checked Sep 30, 2026	201-500	130 contacts →
	Partial evidence “Since 1978, Coastal Gulf & International, Inc.(CGI) has been a trusted leader in independent inspection, testing, and technical services for the energy, petrochemical, and marine…” Source: RevenueBase Database · checked Sep 30, 2026
17	Modern Industries INC	Partial evidence	Erie, PA, United StatesHQ checked Sep 30, 2026	201-500	129 contacts →
	Partial evidence “Modern Industries offers customers a single-source solution for precision contract machining, end-to-end complete materials testing lab, and the largest heat treating facility in…” Source: RevenueBase Database · checked Sep 30, 2026
18	Aeis LLC	Strong evidence	South Plainfield, NJ, United StatesHQ checked Sep 30, 2026	201-500	116 contacts →
	Strong 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
19	Avtechtyee	Indirect evidence	Everett, WA, United StatesHQ checked Sep 30, 2026	201-500	110 contacts →
	Indirect evidence “For over 40 years, AvtechTyee has been the leader in the design, development, and manufacture of electronic systems and the unique swaging, forming, machining, and assembly of…” Source: RevenueBase Database · checked Sep 30, 2026
20	Metal Finishing Company, INC	Indirect evidence	Wichita, KS, United StatesHQ checked Sep 30, 2026	501-1,000	107 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
21	Aegeus Inspection Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	104 contacts →
	Partial evidence “Aegeus Inspection Solutions delivers conventional and advanced non-destructive testing, inspection, engineering, and staff augmentation solutions for the energy, defense, and…” Source: RevenueBase Database · checked Sep 30, 2026
22	National Inspection And Consultants LLC	Partial evidence	Fort Myers, FL, United StatesHQ checked Sep 30, 2026	201-500	87 contacts →
	Partial evidence “Nondestructive Examination (NDE) and QA/QC Inspection Services for the power generation, aerospace, aircraft, bridge and building, fabrication, manufacturing, chemical, food…” Source: RevenueBase Database · checked Sep 30, 2026
23	ALS Life Sciences	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	n/a	78 contacts →
	Partial evidence “ALS is a leading testing, inspection, certification and verification company servicing multiple industries globally.” Source: RevenueBase Database · checked Sep 30, 2026
24	3p Processing	Strong evidence	Wichita, KS, United StatesHQ checked Sep 30, 2026	201-500	73 contacts →
	Strong evidence “Aerospace and Non-Aerospace metal processing: Steel, Aluminum, and Titanium Non-Destructive Testing: Magnetic Particle, Dye Penetrant, Conductivity, and Hardness Shot Peen…” Source: RevenueBase Database · checked Sep 30, 2026
25	Magnetic Inspection Laboratory, INC	Strong evidence	Elk Grove Village, IL, United StatesHQ checked Sep 30, 2026	201-500	64 contacts →
	Strong evidence “MIL provides the following services to the Aerospace, Medical, Industrial and Power Generation industries: • Non-destructive testing including Fluorescent Penetrant, Magnetic…” 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: aerospace quality testing 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 aerospace quality testing services.
Partial evidence: Its own public description names part of aerospace quality testing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name aerospace quality testing 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 460 aerospace quality testing services based in the United States

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Aerospace quality testing services based in the United States at a glance

As of Sep 30, 2026

36.5%Verified-email coverage

49.0Average contacts per company

11-50Median size (employees)

4.3%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

192

11-50

165

51-200

201-500

501-1,000

1,001-5,000

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 460 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 aerospace quality testing 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 “aerospace quality testing 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 aerospace quality testing 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 aerospace quality testing 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, 8,238 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 aerospace quality testing 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 aerospace quality testing services are there based in the United States?

RevenueBase identified 460 aerospace quality testing 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?

UL Solutions, headquartered in Northbrook, tops this list with the largest team on record.

Which city has the most aerospace quality testing services?

Houston leads with 20 headquartered companies, followed by Los Angeles (10) and Miami (10).

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 8,238 verified decision-maker contacts tracked across these 460 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.