Company lists · Data refreshed November 2026

Top 25 Well test unit suppliers based in the United States

RevenueBase identified 280 company matches for well test unit suppliers associated with the United States as of November 2026 and tracks 10,481 professional contacts across them, including 2,021 with verified work emails. Houston is the largest hub.

This list covers company matches for well test unit suppliers 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 3, 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 3, 2026 How this list was built
280Companies
10,481Contacts tracked
2,021Verified emails
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The 25 largest well test unit suppliers based in the United States

Ranked by team size
Top 25 of 280 company matches for well test unit suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 3, 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 matchHouston, TX, United StatesHQ recorded Nov 3, 20261,001-5,0002,119 contacts →

Exact match

“For oil & gas exploration and production companies worldwide, Superior Energy Services is an oilfield products and services company with global reach, financial stability and…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Nov 3, 20261,001-5,0001,223 contacts →

Exact match

“Stewart & Stevenson is a leading designer, manufacturer and provider of specialized equipment and aftermarket parts and service for the oil and gas and other industries that we…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Nov 3, 2026501-1,000384 contacts →

Exact match

“Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
4Exact matchHouston, ND, United StatesHQ recorded Nov 3, 20261,001-5,000351 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Nov 3, 2026201-500295 contacts →

Exact match

“Greene’s Energy Group offers a range of support services and products to the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Nov 3, 2026501-1,000234 contacts →

Exact match

“A leader in wellhead, pressure control, and production tree (Christmas Tree) equipment and service solutions, Vault PC also supports a top-tier completions division, supporting…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Nov 3, 2026501-1,000206 contacts →

Exact match

“Getting it done right.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
8Exact matchLevelland, TX, United StatesHQ recorded Nov 3, 2026501-1,000202 contacts →

Exact match

“Founded in 1980, Butch's has been leading the pack as the premier service provider for the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Nov 3, 202651-200159 contacts →

Exact match

“PRT Offshore, an Expro company, provides high-quality oilfield rental equipment and services for the global offshore industry.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Nov 3, 20261,001-5,000154 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
11Exact matchLongview, TX, United StatesHQ recorded Nov 3, 2026201-500125 contacts →

Exact match

“Thomas Oilfield Services is committed to providing the best services and equipment in the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
12Exact matchHouma, LA, United StatesHQ recorded Nov 3, 2026201-500121 contacts →

Exact match

“From our beginnings in 1978 as a small but unique oilfield rental tool company, Gulfstream has continually expanded and evolved to meet the needs of the ever-changing oil and gas…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
13Exact matchCorpus Christi, TX, United StatesHQ recorded Nov 3, 202651-200121 contacts →

Exact match

“Iron Horse Tools designs, tests, rents, and services pressure control equipment that enhances conventional and unconventional drilling performance.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
14Exact matchFort Worth, TX, United StatesHQ recorded Nov 3, 2026201-500107 contacts →

Exact match

“From day one our mission has always been to provide our customers with the best combination of products, service, and value available.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
15Exact matchThe Woodlands, TX, United StatesHQ recorded Nov 3, 202651-200101 contacts →

Exact match

“Black Diamond Oilfield Rentals is a privately held company that offers a comprehensive range of products for rent and services tailored to meet the specific needs of our clients.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
16Exact matchFarmington, NM, United StatesHQ recorded Nov 3, 2026201-50087 contacts →

Exact match

“Since 1970, PESCO has been supplying new, repaired and used production equipment and field services to the on-shore oil and natural gas industries.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
17Exact matchMinot, ND, United StatesHQ recorded Nov 3, 202651-20086 contacts →

Exact match

“NewKota is an oil and gas service company that offers an array of frac, completion, and drilling support equipment and staff.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
18Exact matchCleburne, OK, United StatesHQ recorded Nov 3, 2026201-50080 contacts →

Exact match

“Grady Rental Services began as an oil and gas equipment service company servicing Texas.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
19Exact matchCrowley, LA, United StatesHQ recorded Nov 3, 202651-20077 contacts →

Exact match

“Jaguar Energy Services was founded in 2011, bringing with them decades of executive experience and technical expertise that touched every corner of the oil and gas industry…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Nov 3, 202651-20073 contacts →

Exact match

“Hi we’re Nexxis, We’re about so much more than just hiring and selling top quality technical equipment.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
21Exact matchSignall Hill, CA, United StatesHQ recorded Nov 3, 202611-5071 contacts →

Exact match

“John M.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
22Exact matchElk City, NM, United StatesHQ recorded Nov 3, 202651-20068 contacts →

Exact match

“Prime Well Solutions is a Flowback and Well Testing company offering support through the entire life-cycle of operators wellsites.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
23Exact matchOdessa, OK, United StatesHQ recorded Nov 3, 2026201-50065 contacts →

Exact match

“Unleash Your Rig’s Potential with Blaze Sales & Service : USA’s New and Used Oilfield Equipment Powerhouse!”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
24Exact matchOklahoma City, OK, United StatesHQ recorded Nov 3, 202651-20063 contacts →

Exact match

“We help oil & gas / energy companies maximize uptime, cut costs, and get the most value from their equipment.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
25Exact matchMillsap, TX, United StatesHQ recorded Nov 3, 2026201-50061 contacts →

Exact match

“Well Service is a leading force in the Well Service industry.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase

Showing 25 of 280 well test unit suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 2,021 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Well test unit suppliers based in the United States at a glance

As of Nov 3, 2026
19.3%Verified-email coverage
37.4Average contacts per company
11-50Median size (employees)
15.0%Largest-city concentration · Houston
Nov 3, 2026Page data refreshed

Companies by employee count

1-10
70
11-50
104
51-200
74
201-500
20
501-1,000
5
1,001-5,000
6

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 280 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 “well test unit suppliers” 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 2,021 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 3, 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.

Well test unit suppliers by metro

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 “well test unit suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many well test unit suppliers are there based in the United States?

RevenueBase identified 280 company matches for well test unit suppliers 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?

Superior Energy Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most well test unit suppliers?

Houston leads with 42 company records, followed by Midland (21) and Odessa (14).

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 2,021 professional contacts with verified work emails tracked across these 280 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 3, 2026.

Ready to reach these companies? Verified emails and direct dials for all 280 well test unit suppliers based in the United States. Start with a free account, no credit card.

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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.