Company lists · Data refreshed September 2026

Top 25 Industrial equipment testing services based in the United States

Name: Industrial equipment 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 17, 2026 1,530 companies tracked

RevenueBase identified 1,530 industrial equipment testing services headquartered in the United States as of September 2026 and tracks 62,532 professional contacts across them, including 23,408 with verified work emails. Houston is the largest hub.

This list covers industrial equipment 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 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

1,530Companies

62,532Contacts tracked

23,408Verified emails

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The 25 largest industrial equipment testing services based in the United States

Ranked by team size

Top 25 of 1,530 industrial equipment testing services 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 equipment 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 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	NI National Instruments	Indirect evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	7,081 contacts →
	Indirect evidence “In 2023, Emerson acquired NI and introduced its new Test & Measurement business group.” Source: RevenueBase Database · checked Sep 17, 2026
3	Acuren	Indirect evidence	Tomball, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	3,734 contacts →
	Indirect evidence “Acuren (NYSE: TIC) is a leading provider of critical asset integrity services.” Source: RevenueBase Database · checked Sep 17, 2026
4	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
5	Stratosphere Quality	Indirect evidence	Fishers, IN, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,553 contacts →
	Indirect 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 17, 2026
6	Shermco Industries	Strong evidence	Irving, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,221 contacts →
	Strong evidence “Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…” Source: RevenueBase Database · checked Sep 17, 2026
7	Instron	Strong evidence	Norwood, MA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,015 contacts →
	Strong evidence “Instron manufactures and services a wide range of cutting-edge materials testing equipment used by research scientists, design engineers, and quality control managers.” Source: RevenueBase Database · checked Sep 17, 2026
8	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
9	Professional Service Industries, Inc. PSI	Partial evidence	Arlington Heights, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	778 contacts →
	Partial evidence “Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Source: RevenueBase Database · checked Sep 17, 2026
10	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
11	Transcat	Strong evidence	Rochester, NY, United StatesHQ checked Sep 17, 2026	501-1,000	673 contacts →
	Strong evidence “At Transcat, we are the global leader in test and measurement equipment and calibration services for highly technical industries, including life sciences, power generation…” Source: RevenueBase Database · checked Sep 17, 2026
12	Electric Power Systems	Partial evidence	Maryland Heights, MO, United StatesHQ checked Sep 17, 2026	501-1,000	653 contacts →
	Partial evidence “Electric Power Systems is an independent electrical testing & engineering organization.” Source: RevenueBase Database · checked Sep 17, 2026
13	IEH Laboratories And Consulting Group	Strong evidence	Lake Forest Park, WA, United StatesHQ checked Sep 17, 2026	1,001-5,000	651 contacts →
	Strong evidence “IEH is an international lab & consulting services company, offering a comprehensive portfolio of lab testing services and consultation across multiple industries.” Source: RevenueBase Database · checked Sep 17, 2026
14	Doble Engineering	Indirect evidence	Marlborough, MA, United StatesHQ checked Sep 17, 2026	501-1,000	619 contacts →
	Indirect evidence “Doble is the world’s most trusted brand in electrical diagnostics.” Source: RevenueBase Database · checked Sep 17, 2026
15	Socotec US	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	492 contacts →
	Indirect evidence “Welcome to SOCOTEC in the US, Trusted Expertise, From the Ground Up.” Source: RevenueBase Database · checked Sep 17, 2026
16	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
17	Hoist & Crane Service Group	Strong evidence	New Orleans, LA, United StatesHQ checked Sep 17, 2026	501-1,000	388 contacts →
	Strong evidence “Hoist & Crane Service Group is a national leader in comprehensive inspection and maintenance services for overhead lifting equipment and industrial elevators.” Source: RevenueBase Database · checked Sep 17, 2026
18	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
19	Nvi, LLC Nondestructive Visual Inspection	Partial evidence	Gray, LA, United StatesHQ checked Sep 17, 2026	201-500	340 contacts →
	Partial evidence “NVI is a provider of industrial NDT solutions catering to companies with critical infrastructure needs.” Source: RevenueBase Database · checked Sep 17, 2026
20	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
21	Pine Environmental Services LLC	Partial evidence	Windsor, NJ, United StatesHQ checked Sep 17, 2026	201-500	292 contacts →
	Partial evidence “Pine is the leading provider of rental equipment in the U.S.” Source: RevenueBase Database · checked Sep 17, 2026
22	Structural Integrity Associates	Partial evidence	Huntersville, NC, United StatesHQ checked Sep 17, 2026	201-500	274 contacts →
	Partial evidence “Structural Integrity Associates is the most-trusted provider of proven engineering services for the energy and process industries.” Source: RevenueBase Database · checked Sep 17, 2026
23	TJ Inspection, INC	Indirect evidence	Oklahoma City, OK, United StatesHQ checked Sep 17, 2026	201-500	262 contacts →
	Indirect evidence “Setting the Standard for Premier Inspection Services in the Oil & Gas Industry through our Dedication to Tradition / Talent / Technology / Teamwork TJ Inspection provides the…” Source: RevenueBase Database · checked Sep 17, 2026
24	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
25	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

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 equipment 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 industrial equipment testing services.
Partial evidence: Its own public description names part of industrial equipment testing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial equipment 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 1,530 industrial equipment testing services based in the United States

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Industrial equipment testing services based in the United States at a glance

As of Sep 17, 2026

37.4%Verified-email coverage

40.9Average contacts per company

11-50Median size (employees)

5.8%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

621

11-50

589

51-200

206

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 1,530 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 equipment 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 “industrial equipment 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 industrial equipment 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 industrial equipment 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, 23,408 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 equipment testing services by metro

Industrial equipment testing services in Houston89

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 equipment 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 industrial equipment testing services are there based in the United States?

RevenueBase identified 1,530 industrial equipment 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 industrial equipment testing services?

Houston leads with 89 headquartered companies, followed by Austin (16) and New York (14).

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 23,408 verified decision-maker contacts tracked across these 1,530 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.

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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.