Company lists · Data refreshed September 2026

Top 25 Quality control testing services based in the United States

RevenueBase identified 378 company matches for quality control testing services associated with the United States as of September 2026 and tracks 13,045 professional contacts across them, including 4,538 with verified work emails. Houston is the largest hub.

This list covers company matches for quality control testing services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
378Companies
13,045Contacts tracked
4,538Verified emails
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The 25 largest quality control testing services based in the United States

Ranked by team size
Top 25 of 378 company matches for quality control testing services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCranbury, NJ, United StatesHQ recorded Sep 21, 20265,001-10,0003,447 contacts →

Exact match

“The AmSpec Group has been relied upon in the testing, inspection, and certification (TIC) sector for several decades.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchMarietta, GA, United StatesHQ recorded Sep 21, 20261,001-5,000890 contacts →

Exact match

“Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchBoxborough, MA, United StatesHQ recorded Sep 21, 2026501-1,000712 contacts →

Exact match

“TÜV Rheinland is a world leader in testing, inspection and certification services for a wide variety of industries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchLake Forest Park, WA, United StatesHQ recorded Sep 21, 20261,001-5,000651 contacts →

Exact match

“IEH is an international lab & consulting services company, offering a comprehensive portfolio of lab testing services and consultation across multiple industries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchSan Diego, CA, United StatesHQ recorded Sep 21, 20261,001-5,000632 contacts →

Exact match

“When it comes to understanding the physical structure, chemical properties and performance of advanced materials and integrated circuitry, no other scientific services company…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchSan Antonio, TX, United StatesHQ recorded Sep 21, 2026501-1,000451 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchMilford, OH, United StatesHQ recorded Sep 21, 2026501-1,000314 contacts →

Exact match

“Founded in 1987, ATL, A Bureau Veritas Company, is a Scientific Sourcing Solutions Company.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchAkron, OH, United StatesHQ recorded Sep 21, 2026501-1,000310 contacts →

Exact match

“Founded in 1925 and headquartered in Akron, Ohio, Smithers is a multinational provider of testing, consulting, information, and certification services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchGolden, CO, United StatesHQ recorded Sep 21, 202651-200257 contacts →

Exact match

“For more than 40 years, Waters ERA has been providing analytical laboratories and organizations that rely on laboratory data with the products and services they need to achieve…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchNiles, IL, United StatesHQ recorded Sep 21, 2026201-500242 contacts →

Exact match

“Deibel Laboratories started in 1967 by Dr.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchArlington Heights, IL, United StatesHQ recorded Sep 21, 202610001+241 contacts →

Exact match

“Market Access.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchMchenry, IL, United StatesHQ recorded Sep 21, 2026501-1,000211 contacts →

Exact match

“Pro QC International provides tailored quality solutions with a human touch in 100 countries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchMelville, NY, United StatesHQ recorded Sep 21, 20261,001-5,000206 contacts →

Exact match

“Certified Group partners with customers to deliver innovative scientific solutions and expertise – So The World Can Trust In What It Consumes®.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchSan Ramon, CA, United StatesHQ recorded Sep 21, 2026201-500201 contacts →

Exact match

“At Consolidated Engineering Laboratories (CEL) we consider ourselves more than a Testing Laboratory.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchPittsburgh, PA, United StatesHQ recorded Sep 21, 2026201-500194 contacts →

Exact match

“RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchPeachtree City, GA, United StatesHQ recorded Sep 21, 202651-200134 contacts →

Exact match

“Timber Products Inspection, Inc.(TP) is an independent, third party wood products inspection, testing and consulting company.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchSouth Plainfield, NJ, United StatesHQ recorded Sep 21, 2026201-500116 contacts →

Exact match

“AEIS, LLC is a testing, inspection, and certification (TIC) agency that increases quality and safety outcomes for major infrastructure.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200112 contacts →

Exact match

“Eagle Analytical is an FDA- and DEA-registered, A2LA ISO 17025-accredited laboratory that provides analytical chemistry, microbiological testing, consulting, and technical…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchMoon Township, PA, United StatesHQ recorded Sep 21, 202651-200103 contacts →

Exact match

“We are leading experts in materials quality assurance and quality control inspection, construction management and construction inspection, coatings inspection, training and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchCovina, CA, United StatesHQ recorded Sep 21, 202651-20095 contacts →

Exact match

“From Global QA and QC Partners to Full Fledged Digital Transformation Organization, We've got you covered!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchSyracuse, NY, United StatesHQ recorded Sep 21, 202651-20088 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Sep 21, 2026n/a78 contacts →

Exact match

“ALS is a leading testing, inspection, certification and verification company servicing multiple industries globally.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchBluffdale, UT, United StatesHQ recorded Sep 21, 202651-20065 contacts →

Exact match

“Canyon Labs partners with pharmaceutical and medical device companies to support products from development through launch and long-term market maintenance.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchHawthorne, NY, United StatesHQ recorded Sep 21, 202651-20060 contacts →

Exact match

“A trusted partner to the utility industry for over 15 years, Storti Quality delivers inspection and professional services that support safe, reliable, and compliant operations.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchCleveland, OH, United StatesHQ recorded Sep 21, 202651-20059 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 378 quality control testing services based in the United States

See the full list, filter by size, metro and specialty, and access 4,538 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Quality control testing services based in the United States at a glance

As of Sep 21, 2026
34.8%Verified-email coverage
34.5Average contacts per company
11-50Median size (employees)
4.5%Largest-city concentration · Houston
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
150
11-50
144
51-200
53
201-500
13
501-1,000
7
1,001-5,000
8
5,001-10,000
1
10001+
2

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 378 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “quality control testing services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 4,538 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “quality control testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many quality control testing services are there based in the United States?

RevenueBase identified 378 company matches for quality control testing services associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Amspec Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most quality control testing services?

Houston leads with 17 company records, followed by New York (6) and Los Angeles (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 4,538 professional contacts with verified work emails tracked across these 378 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 SmartSearch, 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.