Company lists · Data refreshed September 2026

Top 25 Industrial testing labs based in the United States

Name: Industrial testing labs based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,092 companies tracked

RevenueBase identified 1,092 industrial testing labs headquartered in the United States as of September 2026 and tracks 46,084 professional contacts across them, including 18,744 with verified work emails. Houston is the largest hub.

This list covers industrial testing labs 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

1,092Companies

46,084Contacts tracked

18,744Verified emails

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

The 25 largest industrial testing labs based in the United States

Ranked by team size

Top 25 of 1,092 industrial testing labs based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial testing labs: 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 17, 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 17, 2026
2	Amspec Group	Partial evidence	Cranbury, NJ, United StatesHQ checked Sep 17, 2026	5,001-10,000	3,447 contacts →
	Partial evidence “The AmSpec Group has been relied upon in the testing, inspection, and certification (TIC) sector for several decades.” Source: RevenueBase Database · checked Sep 17, 2026
3	NSF	Indirect evidence	Ann Arbor, MI, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,532 contacts →
	Indirect evidence “Founded in 1944, NSF is committed to protecting and improving human health and the environment on a global scale.” Source: RevenueBase Database · checked Sep 17, 2026
4	Nv5	Indirect evidence	Hollywood, FL, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,230 contacts →
	Indirect evidence “NV5 is a provider of technology, conformity assessment, and consulting solutions for public and private sector clients supporting infrastructure, utility, and building assets and…” Source: RevenueBase Database · checked Sep 17, 2026
5	Gaming Laboratories International, LLC	Indirect evidence	Lakewood, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,093 contacts →
	Indirect evidence “Illuminate Your Path with a Wonderful Career at Visit gaminglabs.com/careers for great career opportunities!” Source: RevenueBase Database · checked Sep 17, 2026
6	Applied Technical Services, LLC	Strong evidence	Marietta, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	890 contacts →
	Strong evidence “Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.” Source: RevenueBase Database · checked Sep 17, 2026
7	Emsl Analytical, INC	Partial evidence	Cinnaminson, NJ, United StatesHQ checked Sep 17, 2026	501-1,000	719 contacts →
	Partial evidence “As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Source: RevenueBase Database · checked Sep 17, 2026
8	TÜV Rheinland North America	Strong evidence	Boxborough, MA, United StatesHQ checked Sep 17, 2026	501-1,000	712 contacts →
	Strong evidence “TÜV Rheinland is a world leader in testing, inspection and certification services for a wide variety of industries.” Source: RevenueBase Database · checked Sep 17, 2026
9	SCS Global Services	Indirect evidence	Emeryville, CA, United StatesHQ checked Sep 17, 2026	201-500	667 contacts →
	Indirect evidence “Scientific Certification Systems, Inc, now doing business as SCS Global Services, is a trusted leader in third-party environmental, sustainability and food quality certification…” Source: RevenueBase Database · checked Sep 17, 2026
10	Astm International	Indirect evidence	West Conshohocken, PA, United StatesHQ checked Sep 17, 2026	501-1,000	634 contacts →
	Indirect evidence “Over ASTM standards operate globally.” Source: RevenueBase Database · checked Sep 17, 2026
11	Food Safety NET Services	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 17, 2026	501-1,000	451 contacts →
	Indirect evidence “As part of Certified Group, Food Safety Net Services (FSNS) and Certified Laboratories partner with customers to deliver innovative scientific solutions and expertise – So The…” Source: RevenueBase Database · checked Sep 17, 2026
12	SPL	Partial evidence	Houston, United StatesHQ checked Sep 17, 2026	501-1,000	442 contacts →
	Partial evidence “SPL is a leading provider of compliance and testing services for Environmental, Energy, and other end markets.” Source: RevenueBase Database · checked Sep 17, 2026
13	FST Technical Services	Partial evidence	Chandler, AZ, United StatesHQ checked Sep 17, 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 17, 2026
14	Enthalpy Analytical	Partial evidence	North Little Rock, AR, United StatesHQ checked Sep 17, 2026	501-1,000	349 contacts →
	Partial evidence “Our laboratory service experts provide clients with precision testing support, innovative scientific approaches, and high-quality data that delivers a sense of certainty.” Source: RevenueBase Database · checked Sep 17, 2026
15	Smithers	Partial evidence	Akron, OH, United StatesHQ checked Sep 17, 2026	501-1,000	310 contacts →
	Partial evidence “Founded in 1925 and headquartered in Akron, Ohio, Smithers is a multinational provider of testing, consulting, information, and certification services.” Source: RevenueBase Database · checked Sep 17, 2026
16	Certifiedsafety, An Onpoint Company	Partial evidence	Deer Park, TX, United StatesHQ checked Sep 17, 2026	501-1,000	293 contacts →
	Partial evidence “Please follow Onpoint Industrial Services, LLC for the latest news and updates!” Source: RevenueBase Database · checked Sep 17, 2026
17	Certified Laboratories, INC	Indirect evidence	Melville, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	287 contacts →
	Indirect evidence “As part of Certified Group, Certified Laboratories partners with customers to deliver innovative scientific solutions and expertise – So The World Can Trust In What It Consumes™.” Source: RevenueBase Database · checked Sep 17, 2026
18	Alpha Analytical	Indirect evidence	Westborough, MA, United StatesHQ checked Sep 17, 2026	501-1,000	254 contacts →
	Indirect evidence “Since 1987, Alpha Analytical, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
19	Intertek Building & Construction	Indirect evidence	Arlington Heights, IL, United StatesHQ checked Sep 17, 2026	10001+	241 contacts →
	Indirect evidence “Market Access.” Source: RevenueBase Database · checked Sep 17, 2026
20	Tanknology	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	201-500	232 contacts →
	Partial evidence “Tanknology is the world's largest provider of tank testing and environmental compliance services for petroleum systems.” Source: RevenueBase Database · checked Sep 17, 2026
21	Pace Analytical	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	231 contacts →
	Indirect evidence “Watch our video on the history and culture of Pace at https://goo.gl/L3ruD3 or get a more detailed look through our company brochure at https://goo.gl/feMDwU!” Source: RevenueBase Database · checked Sep 17, 2026
22	Techcorr Usa, LLC	Indirect evidence	Pasadena, TX, United StatesHQ checked Sep 17, 2026	501-1,000	226 contacts →
	Indirect evidence “The TechCorr name is synonymous with safe, quality inspection services.” Source: RevenueBase Database · checked Sep 17, 2026
23	MGA Research Corporation	Partial evidence	Akron, NY, United StatesHQ checked Sep 17, 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 17, 2026
24	PRO QC International	Indirect evidence	Mchenry, IL, United StatesHQ checked Sep 17, 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 17, 2026
25	Industrial Inspection & Analysis	Strong evidence	Alpharetta, GA, United StatesHQ checked Sep 17, 2026	501-1,000	210 contacts →
	Strong evidence “Industrial Inspection & Analysis® (IIA) is an emerging, high growth inspection, testing, and analytical business seeking to build a national platform in order to serve a breadth…” Source: RevenueBase Database · checked Sep 17, 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: industrial testing labs. 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 industrial testing labs.
Partial evidence: Its own public description names part of industrial testing labs, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial testing labs. 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 1,092 industrial testing labs based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 18,744 reachable decision-makers.

Free signup · no credit card

View the full list →

Industrial testing labs based in the United States at a glance

As of Sep 17, 2026

40.7%Verified-email coverage

42.2Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

385

11-50

467

51-200

155

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 1,092 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 industrial testing labs, 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 “industrial testing labs”. 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 industrial testing labs), 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 industrial testing labs, 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, 18,744 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.

Industrial testing labs by metro

Industrial testing labs in Houston40

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 industrial testing labs, 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 industrial testing labs are there based in the United States?

RevenueBase identified 1,092 industrial testing labs 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 industrial testing labs?

Houston leads with 40 headquartered companies, followed by San Diego (13) 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 18,744 verified decision-maker contacts tracked across these 1,092 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.

Ready to reach these companies? Verified emails and direct dials for all 1,092 industrial testing labs based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Industrial testing labs by geography

Browse the directory

Browse: Companies home · All United States lists · All Industrial testing labs 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.