Company lists · Data refreshed September 2026

Top 25 Well testing service providers based in the United States

RevenueBase identified 160 company matches for well testing service providers associated with the United States as of September 2026 and tracks 3,911 professional contacts across them, including 737 with verified work emails. Houston is the largest hub.

This list covers company matches for well testing service providers 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 22, 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 22, 2026 How this list was built
160Companies
3,911Contacts tracked
737Verified emails
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The 25 largest well testing service providers based in the United States

Ranked by team size
Top 25 of 160 company matches for well testing service providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 Sep 22, 2026501-1,000379 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 · Sep 22, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Sep 22, 2026201-500285 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 · Sep 22, 2026 · View company records in RevenueBase
3Exact matchDallas, TX, United StatesHQ recorded Sep 22, 2026201-500268 contacts →

Exact match

“Reserves assessments and appraisals • Prospective resources assessments • Unconventional resources assessments • Contingent resources assessments • Reservoir simulation •…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchLevelland, TX, United StatesHQ recorded Sep 22, 2026501-1,000197 contacts →

Exact match

“Renegade Services is the largest privately owned wireline service company servicing the oil and gas industry in the United States.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Sep 22, 2026501-1,000191 contacts →

Exact match

“Getting it done right.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchThe Woodlands, TX, United StatesHQ recorded Sep 22, 2026201-500128 contacts →

Exact match

“Ideal Completion Services, Inc.(“Ideal”) is a privately owned Flowback and Production Testing Oilfield Service Company operating in Canada and the USA.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchWeatherford, OK, United StatesHQ recorded Sep 22, 202651-20098 contacts →

Exact match

“Impac Exploration Services, Inc.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Sep 22, 2026501-1,00087 contacts →

Exact match

“Upstream International provides drilling, completions/work-over, directional, MWD, safety, fluids and MPD professionals to the oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchDallas, TX, United StatesHQ recorded Sep 22, 202651-20082 contacts →

Exact match

“Production Solutions is majority owned and managed by the Mitchell Group in Dallas, Texas.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchCrowley, LA, United StatesHQ recorded Sep 22, 202651-20068 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 · Sep 22, 2026 · View company records in RevenueBase
11Exact matchElk City, NM, United StatesHQ recorded Sep 22, 202651-20065 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 · Sep 22, 2026 · View company records in RevenueBase
12Exact matchCovington, LA, United StatesHQ recorded Sep 22, 2026201-50058 contacts →

Exact match

“Priority Energy Services, LLC delivers top quality, professional oilfield services utilizing highly experienced personnel and state of the art equipment.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchGrand Junction, CO, United StatesHQ recorded Sep 22, 202651-20047 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Sep 22, 202651-20046 contacts →

Exact match

“Founded in Sylvan Lake, Alberta, Canada, Spartek Systems has over 100 employees worldwide.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchWilliston, ND, United StatesHQ recorded Sep 22, 202651-20045 contacts →

Exact match

“Lochend Energy Services Inc.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Sep 22, 202611-5039 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 · Sep 22, 2026 · View company records in RevenueBase
17Exact matchClifton, CO, United StatesHQ recorded Sep 22, 202651-20037 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchThe Woodlands, TX, United StatesHQ recorded Sep 22, 202611-5036 contacts →

Exact match

“Tejas Research & Engineering designs, manufactures, and tests ultra-reliable, deepwater and HPHT Subsurface Safety Valve Technologies that assure operators have the means to…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchOklahoma City, OK, United StatesHQ recorded Sep 22, 2026201-50035 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchWaskom, TX, United StatesHQ recorded Sep 22, 202651-20035 contacts →

Exact match

“The founding principle of Bass Energy Services is to provide you the best equipment and personnel in the industry at a competitive price.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchCanonsburg, PA, United StatesHQ recorded Sep 22, 202611-5034 contacts →

Exact match

“Since 2011, Heavy Iron has provided high quality equipment and services to the Marcellus and Utica basins.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchDuson, LA, United StatesHQ recorded Sep 22, 202651-20032 contacts →

Exact match

“Stric-Lan Companies is a diversified oil and gas services company that has provided services in Well Completions, Production and Pipeline Transmission Lines with pride, safety and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchShreveport, LA, United StatesHQ recorded Sep 22, 202651-20027 contacts →

Exact match

“Gulf South Energy Services is a full-service Wireline and flowback/well testing completions company providing services in Arkansas, Louisiana, and Texas.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchSan Antonio, TX, United StatesHQ recorded Sep 22, 202611-5024 contacts →

Exact match

“Alamo Oilfield Services, LLC was established in 2013 specializing in anchor tie-down on the completion side of the the oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchKaty, TX, United StatesHQ recorded Sep 22, 202651-20022 contacts →

Exact match

“Led by experienced managers, employees and investors, Tier 1 Completion Solutions Inc.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 160 well testing service providers based in the United States

See the full list, filter by size, metro and specialty, and access 737 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Well testing service providers based in the United States at a glance

As of Sep 22, 2026
18.8%Verified-email coverage
24.4Average contacts per company
11-50Median size (employees)
15.0%Largest-city concentration · Houston
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
62
11-50
50
51-200
32
201-500
7
501-1,000
5
1,001-5,000
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 160 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 testing service providers” 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 737 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 22, 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 “well testing service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many well testing service providers are there based in the United States?

RevenueBase identified 160 company matches for well testing service providers 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?

Express 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 testing service providers?

Houston leads with 24 company records, followed by Midland (13) and Oklahoma City (5).

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 737 professional contacts with verified work emails tracked across these 160 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 22, 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.