Company lists · Data refreshed September 2026

Top 25 Metal testing laboratories based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 217 companies tracked

RevenueBase identified 217 metal testing laboratories headquartered in the United States as of September 2026 and tracks 8,180 professional contacts across them, including 3,246 with verified work emails. Houston is the largest hub.

This list covers metal testing laboratories 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 20, 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 20, 2026 86% judged on-target in blind review

217Companies

8,180Contacts tracked

3,246Verified emails

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The 25 largest metal testing laboratories based in the United States

Ranked by team size

Top 25 of 217 metal testing laboratories based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to metal testing laboratories: 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	Amspec Group	Partial evidence	Cranbury, NJ, United StatesHQ checked Sep 20, 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 20, 2026
2	Applied Technical Services, LLC	Partial evidence	Marietta, GA, United StatesHQ checked Sep 20, 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 20, 2026
3	TÜV Rheinland North America	Partial evidence	Boxborough, MA, United StatesHQ checked Sep 20, 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 20, 2026
4	Intertek Building & Construction	Indirect evidence	Arlington Heights, IL, United StatesHQ checked Sep 20, 2026	10001+	241 contacts →
	Indirect evidence “Market Access.” Source: RevenueBase Database · checked Sep 20, 2026
5	Consolidated Engineering Laboratories	Strong evidence	San Ramon, CA, United StatesHQ checked Sep 20, 2026	201-500	201 contacts →
	Strong evidence “At Consolidated Engineering Laboratories (CEL) we consider ourselves more than a Testing Laboratory.” Source: RevenueBase Database · checked Sep 20, 2026
6	Smith-Emery	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 20, 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 20, 2026
7	Aeis LLC	Partial evidence	South Plainfield, NJ, United StatesHQ checked Sep 20, 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 20, 2026
8	Certerra	Partial evidence	Las Vegas, NV, United StatesHQ checked Sep 20, 2026	1,001-5,000	114 contacts →
	Partial evidence “Certerra provides technology-enabled testing, inspection, and certification services for new product development, engineering solutions to manage assets, and quality assurance for…” Source: RevenueBase Database · checked Sep 20, 2026
9	Wirco INC	Indirect evidence	Avilla, IN, United StatesHQ checked Sep 20, 2026	51-200	91 contacts →
	Indirect evidence “Wirco is an alloy fabrication and casting company.” Source: RevenueBase Database · checked Sep 20, 2026
10	CME Associates, INC	Indirect evidence	Syracuse, NY, United StatesHQ checked Sep 20, 2026	51-200	88 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
11	National Inspection And Consultants LLC	Indirect evidence	Fort Myers, FL, United StatesHQ checked Sep 20, 2026	201-500	87 contacts →
	Indirect 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 20, 2026
12	Rogue Industrial Group RIG	Partial evidence	Midland, TX, United StatesHQ checked Sep 20, 2026	51-200	73 contacts →
	Partial evidence “Contract Hitch Personnel Inspection and Testing: • Certified Welding Inspectors • API Inspectors (510,570,653) • QA/QC Inspectors • NACE Coating Inspectors (Levels • I&E…” Source: RevenueBase Database · checked Sep 20, 2026
13	3p Processing	Strong evidence	Wichita, KS, United StatesHQ checked Sep 20, 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 20, 2026
14	Magnetic Inspection Laboratory, INC	Partial evidence	Elk Grove Village, IL, United StatesHQ checked Sep 20, 2026	201-500	64 contacts →
	Partial 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 20, 2026
15	Zwickroell In North America	Indirect evidence	Kennesaw, GA, United StatesHQ checked Sep 20, 2026	1,001-5,000	59 contacts →
	Indirect evidence “Welcome to ZwickRoell in North America ZwickRoell is committed to helping you improve the performance and safety of your products.” Source: RevenueBase Database · checked Sep 20, 2026
16	NSL Analytical Services, INC	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 20, 2026	51-200	59 contacts →
	Partial evidence “In business since 1945, NSL is an ISO/IEC 17025, Nadcap certified, ASME NQA-1, 10 CFR 50 Appendix B (Nuclear) Certified Independent Commercial Testing Laboratory providing…” Source: RevenueBase Database · checked Sep 20, 2026
17	Weld Spec Inspection Services An HMT Company	Partial evidence	Lumberton, TX, United StatesHQ checked Sep 20, 2026	51-200	56 contacts →
	Partial evidence “Weld Spec is locally-owned and operated and was established in 2001 with the goal of providing superior non-destructive testing and inspection services to our clients with…” Source: RevenueBase Database · checked Sep 20, 2026
18	Product Evaluation Systems, LLC	Partial evidence	Latrobe, PA, United StatesHQ checked Sep 20, 2026	51-200	48 contacts →
	Partial evidence “PES is an independent testing laboratory, specializing in mechanical, metallurgical, chemical and nondestructive testing and analysis.” Source: RevenueBase Database · checked Sep 20, 2026
19	Alliance Infinite	Partial evidence	New York, United StatesHQ checked Sep 20, 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 20, 2026
20	BAY Area Compliance Laboratories, Corp	Partial evidence	Sunnyvale, CA, United StatesHQ checked Sep 20, 2026	11-50	45 contacts →
	Partial evidence “Since 1996, Bay Area Compliance Laboratories Corp.” Source: RevenueBase Database · checked Sep 20, 2026
21	RTI Laboratories, INC	Partial evidence	Livonia, MI, United StatesHQ checked Sep 20, 2026	51-200	42 contacts →
	Partial evidence “For over 30 years, industry has been relying on RTI Laboratories as an analytical resource.” Source: RevenueBase Database · checked Sep 20, 2026
22	Phoenix National Laboratories	Strong evidence	Tempe, AZ, United StatesHQ checked Sep 20, 2026	51-200	34 contacts →
	Strong evidence “At PNL our brand is 'Quality When You Need It.' Phoenix National Laboratories is a full-service engineering and ISO accredited 3rd Party Quality Testing company specializing in…” Source: RevenueBase Database · checked Sep 20, 2026
23	West Coast Inspection Services	Partial evidence	San Diego, CA, United StatesHQ checked Sep 20, 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 20, 2026
24	Materials And Chemistry Laboratory Mclinc	Partial evidence	Oak Ridge, TN, United StatesHQ checked Sep 20, 2026	11-50	29 contacts →
	Partial evidence “Materials and Chemistry Laboratory, Inc.(MCLinc) is a commercial applied research group providing high quality consulting and analytical testing for industrial forensics…” Source: RevenueBase Database · checked Sep 20, 2026
25	Texas Research International	Indirect evidence	Austin, TX, United StatesHQ checked Sep 20, 2026	51-200	29 contacts →
	Indirect evidence “Since its founding in 1975, TRI has grown to 13 wholly-owned subsidiaries employing over 120 scientists, engineers, technicians, and support personal around the world.” Source: RevenueBase Database · checked Sep 20, 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: metal testing laboratories. 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 metal testing laboratories.
Partial evidence: Its own public description names part of metal testing laboratories, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name metal testing laboratories. 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 217 metal testing laboratories based in the United States

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Metal testing laboratories based in the United States at a glance

As of Sep 20, 2026

39.7%Verified-email coverage

37.7Average contacts per company

11-50Median size (employees)

6.9%Largest-city concentration · Houston

Sep 20, 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 217 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 metal testing laboratories, 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 “metal testing laboratories”. 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 metal testing laboratories), 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 metal testing laboratories, 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, 3,246 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 20, 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 metal testing laboratories, 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 metal testing laboratories are there based in the United States?

RevenueBase identified 217 metal testing laboratories 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?

Amspec Group, headquartered in Cranbury, tops this list with the largest team on record.

Which city has the most metal testing laboratories?

Houston leads with 15 headquartered companies, followed by New York (4) and Austin (3).

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 3,246 verified decision-maker contacts tracked across these 217 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 20, 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.