Company lists · Data refreshed November 2026

Top 25 Aggregate testing laboratories based in the United States

RevenueBase identified 343 company matches for aggregate testing laboratories associated with the United States as of November 2026 and tracks 7,847 professional contacts across them, including 3,121 with verified work emails. Houston is the largest hub.

This list covers company matches for aggregate testing laboratories 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 November 6, 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 Nov 6, 2026 How this list was built
343Companies
7,847Contacts tracked
3,121Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest aggregate testing laboratories based in the United States

Ranked by team size
Top 25 of 343 company matches for aggregate testing laboratories based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchArlington Heights, NY, United StatesHQ recorded Nov 6, 20261,001-5,000795 contacts →

Exact match

“Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261,001-5,000498 contacts →

Exact match

“Welcome to SOCOTEC in the US, Trusted Expertise, From the Ground Up.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSan Ramon, HI, United StatesHQ recorded Nov 6, 2026201-500208 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 202651-200194 contacts →

Exact match

“Leighton, a Verdantas Company, provides environmental, geotechnical, materials testing, and special inspection services across the built community.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLong Beach, CA, United StatesHQ recorded Nov 6, 2026201-500191 contacts →

Exact match

“Twining has continued to expand and evolve since its inception more than a century ago.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 2026201-500165 contacts →

Exact match

“Smith-Emery has been providing inspection and materials testing services for public agencies and private companies for the past 113 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPeachtree City, GA, United StatesHQ recorded Nov 6, 202651-200141 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBillings, WY, United StatesHQ recorded Nov 6, 2026201-500124 contacts →

Exact match

“Founded in 1952, Energy Laboratories, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchTemple Terrace, FL, United StatesHQ recorded Nov 6, 202651-200123 contacts →

Exact match

“Established in 1992, Tierra, Inc.(Tierra) is a full-service consulting geotechnical, forensics, environmental, and construction materials testing engineering firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSouth Plainfield, NJ, United StatesHQ recorded Nov 6, 2026201-500122 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDayton, OH, United StatesHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“It’s rare to find experts in geotechnical engineering, civil engineering, construction materials, metals, aggregates, calibration and analytical chemistry all under the same roof.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMount Prospect, NY, United StatesHQ recorded Nov 6, 202651-200104 contacts →

Exact match

“CTLGroup is a globally recognized engineering consulting and testing firm specializing in structural condition assessment, forensic engineering, and construction materials testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSpringville, NY, United StatesHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“Encorus Group, founded in 1996, employs over 100 engineers, architects, technicians, inspectors, and support staff across New York State.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCollinsville, TX, United StatesHQ recorded Nov 6, 202651-20092 contacts →

Exact match

“Geotex Engineering is an experienced North Texas engineering firm that provides geotechnical and construction materials testing services for education, municipal, water…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMidlothian, NC, United StatesHQ recorded Nov 6, 202651-20087 contacts →

Exact match

“Founded in 1984 by current CEO, Chris Stevenson, P.E, Stevenson Consulting, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchEast Pittsburgh, NC, United StatesHQ recorded Nov 6, 202611-5086 contacts →

Exact match

“Geotechnics is an independent accredited laboratory, with locations in Pittsburgh, Raleigh, Nashville and St, Louis, that provides: Geotechnical and Geosynthetic Laboratory and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSyracuse, NY, United StatesHQ recorded Nov 6, 202651-20085 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMorton, IL, United StatesHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“Millennia Professional Services, Ltd, is committed to providing high quality engineering and construction material testing services to both our public and private sector clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAvenel, NJ, United StatesHQ recorded Nov 6, 2026201-50064 contacts →

Exact match

“Atlantic Engineering Laboratories Inc.(AEL) is a full service inspection and materials testing firm providing on-site quality control and quality assurance services during all…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLewis Center, OH, United StatesHQ recorded Nov 6, 202611-5062 contacts →

Exact match

“Founded in 1939, Gilson Company, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCleveland, OH, United StatesHQ recorded Nov 6, 202651-20060 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 · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Alliance Geotechnical Group was established in to provide professional services in the areas of: · Geotechnical Engineering · Subsurface Exploration · Construction Materials…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBothell, WA, United StatesHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“Located in Bothell, Washington, HWA GeoSciences Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchDelray Beach, United StatesHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“Pacifica Engineering Services (PACIFICA) is a multi-disciplined engineering consulting firm specializing in private provider, geotechnical engineering, construction material…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchReno, NV, United StatesHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“For more than 40 years, CME has been northern Nevada’s trusted project partner from planning through construction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 343 aggregate testing laboratories based in the United States

See the full list, filter by size, metro and specialty, and access 3,121 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Aggregate testing laboratories based in the United States at a glance

As of Nov 6, 2026
39.8%Verified-email coverage
22.9Average contacts per company
11-50Median size (employees)
3.8%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
109
11-50
156
51-200
64
201-500
8
1,001-5,000
4
10001+
1

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 343 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 “aggregate testing laboratories” 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 3,121 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 November 6, 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 “aggregate testing laboratories”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many aggregate testing laboratories are there based in the United States?

RevenueBase identified 343 company matches for aggregate testing laboratories associated with the United States as of November 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?

Professional Service Industries, Inc. PSI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most aggregate testing laboratories?

Houston leads with 13 company records, followed by Dallas (7) and Austin (6).

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 3,121 professional contacts with verified work emails tracked across these 343 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 November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 343 aggregate testing laboratories based in the United States. Start with a free account, no credit card.

Download this list →

Related 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 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.