Company lists · Data refreshed November 2026

Top 25 Petroleum testing laboratories based in the United States

RevenueBase identified 176 company matches for petroleum testing laboratories associated with the United States as of November 2026 and tracks 6,953 professional contacts across them, including 2,696 with verified work emails. Houston is the largest hub.

This list covers company matches for petroleum 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
176Companies
6,953Contacts tracked
2,696Verified emails
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The 25 largest petroleum testing laboratories based in the United States

Ranked by team size
Top 25 of 176 company matches for petroleum 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 matchCranbury, NJ, United StatesHQ recorded Nov 6, 20265,001-10,0003,737 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchWestborough, NY, United StatesHQ recorded Nov 6, 2026501-1,000243 contacts →

Exact match

“Since 1987, Alpha Analytical, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAustin, TX, United StatesHQ recorded Nov 6, 2026201-500241 contacts →

Exact match

“Tanknology is the world's largest provider of tank testing and environmental compliance services for petroleum systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchOmaha, NE, United StatesHQ recorded Nov 6, 202651-200200 contacts →

Exact match

“Driving smart decisions has been our passion since 1975, and we continue to do this by recruiting talented individuals in the fields of Chemistry, Biochemistry, Biology…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchEdmond, IL, United StatesHQ recorded Nov 6, 2026n/a139 contacts →

Exact match

“VK ENTERPRISES is a company based out of 3900 S Broadway, Edmond, OK, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSaint Rose, TX, United StatesHQ recorded Nov 6, 2026201-500133 contacts →

Exact match

“Since 1978, Coastal Gulf & International, Inc.(CGI) has been a trusted leader in independent inspection, testing, and technical services for the energy, petrochemical, and marine…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact 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
8Exact matchArlington, TX, United StatesHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“At RICCA CHEMICAL COMPANY, we make your job simple.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPlymouth Meeting, PA, United StatesHQ recorded Nov 6, 20261,001-5,00082 contacts →

Exact match

“Crompco (now OWL Services) is the nation's industry leader in compliance testing solutions for underground storage tanks (USTs) and lines, vapor recovery systems and training.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchCollinsville, IL, United StatesHQ recorded Nov 6, 2026201-50079 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“Texas OilTech Laboratories, is committed to remaining a world-class petroleum testing laboratory for the analysis of fuels, lubricants, petrochemical, and environmental materials.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLatrobe, PA, United StatesHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“PES is an independent testing laboratory, specializing in mechanical, metallurgical, chemical and nondestructive testing and analysis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchKnoxville, TN, United StatesHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Galbraith Laboratories, Inc, a Bureau Veritas Company, is a contract analytical testing laboratory with over 64 years of experience in the global marketplace.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPittsburg, CA, United StatesHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“Located in the San Francisco Bay Area (Pittsburg), McCampbell Analytical tests drinking water, effluent, soils, solids, hazardous waste, air, industrial materials and food for a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLivonia, MI, United StatesHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“For over 30 years, industry has been relying on RTI Laboratories as an analytical resource.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“GeoMark Research is the preeminent geochemical laboratory, providing petroleum fluid analyses to the petroleum industry and offering a full range of oil, gas, and source rock…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchChicago, TX, United StatesHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Ayalytical Instruments: Your Testing Refined Influential, innovative and progressive.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchPasadena, TX, United StatesHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“At PQM we provide oil/fuel testing, inspection and consulting services in the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSeminole, OK, United StatesHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Cochran Chemical Company is a strong independent corporation serving the petroleum industry since 1959.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Oilfield Labs of America is an analytical laboratory network with a business goal and mission of providing the highest quality analytical testing in the fastest time possible to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchKinder, LA, United StatesHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Oil Clinic Inc is a health, wellness and fitness company based out of 1125 3rd Ave, Kinder, Louisiana, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLivonia, MI, United StatesHQ recorded Nov 6, 202611-5035 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMoscow, ID, United StatesHQ recorded Nov 6, 202651-20033 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchPearland, TX, United StatesHQ recorded Nov 6, 202611-5032 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Aviation Laboratories (AvLab) provides state of the art laboratory testing services and products to the aviation industry.”

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

Showing 25 of 176 petroleum testing laboratories based in the United States

See the full list, filter by size, metro and specialty, and access 2,696 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Petroleum testing laboratories based in the United States at a glance

As of Nov 6, 2026
38.8%Verified-email coverage
39.5Average contacts per company
11-50Median size (employees)
9.1%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
69
11-50
72
51-200
27
201-500
4
501-1,000
2
1,001-5,000
1
5,001-10,000
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 176 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 “petroleum 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 2,696 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 “petroleum testing laboratories”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 176 company matches for petroleum 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?

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

Which city has the most petroleum testing laboratories?

Houston leads with 16 company records, followed by Midland (7) and Grand Rapids (3).

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 2,696 professional contacts with verified work emails tracked across these 176 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.

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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.