Company lists · Data refreshed September 2026
Top 25 Petroleum testing equipment manufacturers based in the United States
RevenueBase identified 68 petroleum testing equipment manufacturers headquartered in the United States as of September 2026 and tracks 1,452 professional contacts across them, including 479 with verified work emails. Houston is the largest hub.
This list covers petroleum testing equipment manufacturers 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 30, 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.
The 25 largest petroleum testing equipment manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 232 contacts → | ||||
Strong evidence “Tanknology is the world's largest provider of tank testing and environmental compliance services for petroleum systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 136 contacts → | ||||
Indirect evidence “VK ENTERPRISES is a company based out of 3900 S Broadway, Edmond, OK, United States.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 79 contacts → | ||||
Indirect evidence “Cannon is a global leader in viscosity and physical property measurement, trusted since 1938 for precise, reliable instrumentation and exceptional service.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 72 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 68 contacts → | ||||
Strong evidence “CFR Engines Inc.(CFR®) is a leading, global manufacturer of fuel rating test instruments and equipment.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 64 contacts → | ||||
Strong evidence “Texas OilTech Laboratories, is committed to remaining a world-class petroleum testing laboratory for the analysis of fuels, lubricants, petrochemical, and environmental materials.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 44 contacts → | ||||
Indirect evidence “Established in 1855, Morrison Bros.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 41 contacts → | ||||
Indirect evidence “Since 1899, Parr Instrument Company has been designing, manufacturing, and selling high quality laboratory instruments and apparatus for conducting chemical reactions and tests…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 39 contacts → | ||||
Partial evidence “Ayalytical Instruments: Your Testing Refined Influential, innovative and progressive.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 36 contacts → | ||||
Partial evidence “Cochran Chemical Company is a strong independent corporation serving the petroleum industry since 1959.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 31 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 31 contacts → | ||||
Partial evidence “At PQM we provide oil/fuel testing, inspection and consulting services in the U.S.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 28 contacts → | ||||
Partial evidence “For nearly 100 years, Newberry Tanks has served the needs of the petroleum distribution industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 28 contacts → | ||||
Partial evidence “For over 30 years KAM CONTROLS has served the oil & petroleum industry with measurement solutions for oil water detection, water-cut measurement, custody transfer, tank…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 23 contacts → | ||||
Indirect evidence “NMK Resources is a distinguished independent inspection and laboratory service provider, trusted by major oil companies across the United States and globally.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 23 contacts → | ||||
Strong evidence “Manufacturer of laboratory testing equipment for the Pharmaceutical, Health & Nutritional, Food, Gas & Oil and Cosmetic industries” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 19 contacts → | ||||
Strong evidence “Thwing-Albert Instrument Company is one of the nation's leading manufacturers of advanced testing instrumentation.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 18 contacts → | ||||
Strong evidence “Leading Manufacturer of Tribology and Petroleum Test Equipment for over 80 years - Contract Petroleum Testing Lab - Friction and Wear and Abrasion Consulting Services -…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 17 contacts → | ||||
Partial evidence “Alpine Polytech is an ISO/IEC 17025:2017 Accredited Lab providing materials testing and consulting services to the upstream Oil & Gas market, as well as the downstream Chemical…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 13 contacts → | ||||
Partial evidence “Grace Instrument Company is a manufacturer of analytical instruments, such as viscometers, rheometers, and core flood testers that are primarily used by oil and gas companies and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Partial evidence “L-K Industries: Setting the standard in the manufacturing of high quality products for the TIC industry since 1930 LK Industries is a Houston based manufacturer of high-quality…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Strong evidence “Compass is your expert guide and single source for reliable fuels, lubricants and materials testing equipment in North America.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 8 contacts → | ||||
Strong evidence “Since 1992, Northwest Tank has proudly served oil companies large and small throughout the west with the highest quality petroleum systems testing and compliance solutions…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Indirect evidence “Zalco Laboratories was founded in 1979 by John Zaletel, Ph.D and Jim Etherton.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
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: petroleum testing equipment manufacturers. 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 petroleum testing equipment manufacturers.
- Partial evidence
- Its own public description names part of petroleum testing equipment manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name petroleum testing equipment manufacturers. 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 68 petroleum testing equipment manufacturers based in the United States
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Petroleum testing equipment manufacturers based in the United States at a glance
As of Sep 30, 2026Companies by employee count
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 68 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 petroleum testing equipment manufacturers, 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 “petroleum testing equipment manufacturers”. 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 petroleum testing equipment manufacturers), 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 petroleum testing equipment manufacturers, 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, 479 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 30, 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 petroleum testing equipment manufacturers, 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 petroleum testing equipment manufacturers are there based in the United States?
RevenueBase identified 68 petroleum testing equipment manufacturers 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?
Tanknology, headquartered in Austin, tops this list with the largest team on record.
Which city has the most petroleum testing equipment manufacturers?
Houston leads with 8 headquartered companies, followed by Pasadena (3) and Sugar Grove (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 479 verified decision-maker contacts tracked across these 68 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 30, 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.
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