Company lists · Data refreshed September 2026

Top 25 Well testing companies worldwide

RevenueBase identified 493 company matches for well testing companies worldwide as of September 2026 and tracks 73,948 professional contacts across them, including 18,469 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for well testing companies worldwide, 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. Country and city lists for well testing companies follow the table.

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
493Companies
73,948Contacts tracked
18,469Verified emails
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The 25 largest well testing companies worldwide

Ranked by team size
Top 25 of 493 company matches for well testing companies worldwide, 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, 202610001+53,380 contacts →

Exact match

“We collaborate and engineer solutions to maximize asset value for our customers.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchDubai, United Arab EmiratesHQ recorded Sep 22, 20261,001-5,0002,249 contacts →

Exact match

“OiLSERV is a provider of an expanding range of oilfield services, including well logging, well testing, production enhancement, drilling services, surface production management…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchDubai, United Arab EmiratesHQ recorded Sep 22, 20261,001-5,0001,685 contacts →

Exact match

“Every year, drilling teams make decisions worth millions of dollars on incomplete information.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Sep 22, 20261,001-5,0001,500 contacts →

Exact match

“With over 70 offices in more than 50 countries located in major oil-producing provinces, Core Laboratories provides services to the world's major, national, and independent oil…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchThe Woodlands, TX, United StatesHQ recorded Sep 22, 20261,001-5,0001,285 contacts →

Exact match

“Cudd offers a broad range of technical and specialized oilfield services to companies engaged in the exploration and production of oil and natural gas worldwide.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchPort Of Spain, Trinidad and TobagoHQ recorded Sep 22, 20261,001-5,000696 contacts →

Exact match

“Tucker Energy Services is a service oriented and customer focused organization providing high quality products and services to our clients in the energy industry.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Sep 22, 2026501-1,000499 contacts →

Exact match

“CETCO Energy Services (CETCO) specializes in treating complex fluids for offshore oil and gas operators.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchMumbai, IndiaHQ recorded Sep 22, 2026501-1,000445 contacts →

Exact match

“OFI-was founded in 1992 as an OEM for Mud Logging units / Mud logging services provider.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact 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
10Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Sep 22, 2026201-500318 contacts →

Exact match

“The needs of the modern-day oil industry dictate that a professional and systematic approach is adopted when planning and carrying out well intervention operations.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchMumbai, IndiaHQ recorded Sep 22, 202651-200300 contacts →

Exact match

“ASIAN is a reservoir imaging company, offering a suite of geophysical services specializing in land and well seismic services.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchUnited StatesHQ recorded Sep 22, 20261,001-5,000278 contacts →

Exact match

“China National Logging Corporation (CNLC), a subsidiary of CNPC Services & Engineering Ltd, solely on behalf of CNPC providing well bore technical services in international…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchMuscat, OmanHQ recorded Sep 22, 2026501-1,000220 contacts →

Exact match

“Special Oilfield Services (SOS) was established on the 10th of March in 1986 as a Joint Venture between Mohsin Haider Darwish LLC (MHD), one of the largest and oldest business…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchCampo Grande, ArgentinaHQ recorded Sep 22, 2026201-500205 contacts →

Exact match

“RAKIDUAMN Is a company fouded by Aiassa Brothers Luis Aiassa an Electronical Engineer with mor than 20 years experenced in elctronic and telecomunication bussines Mariano Aiassa…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchBogotá D.c., ColombiaHQ recorded Sep 22, 2026501-1,000201 contacts →

Exact match

“Bond Energy Solutions is a regional leading oilfield services company, primarily focused on well testing and sub-surface (i.e, wireline and slickline) operations, both for…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact 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
18Exact 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
19Exact matchEdmonton, AB, CanadaHQ recorded Sep 22, 2026201-500190 contacts →

Exact match

“Techno Canada Inc.(TCI), a company incorporated in Alberta, provides a diverse range of high quality oil field services across the Oil & Gas upstream value chain to a global…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchTehran, IranHQ recorded Sep 22, 2026201-500186 contacts →

Exact match

“SeaLand Engineering & Well Services is established through multinational investment.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchGreat Yarmouth, United KingdomHQ recorded Sep 22, 202651-200179 contacts →

Exact match

“ScanTech Offshore is the leading provider of air compressors, steam generators, heat exchangers, rig cooling deluge equipment and qualified personnel for the global well testing…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact 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
23Exact matchVillahermosa, MexicoHQ recorded Sep 22, 2026201-500127 contacts →

Exact match

“Petricore is a UK-registered oilfield service company specializing in Wellsite Services, Laboratory Services, and Digital Rock Analysis for international oil and gas companies.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchHeadquarters, IndiaHQ recorded Sep 22, 202651-200122 contacts →

Exact match

“Well Testing, Slickline, Pumping & Manpower Solutions”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchIndiaHQ recorded Sep 22, 2026201-500105 contacts →

Exact match

“JayBee offers integrated / turnkey oilfield solutions starting from API, Drilling, Cementing, Mud Logging, Mud Engineering, Directional Drilling, Testing, workover as well as well…”

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

Showing 25 of 493 well testing companies worldwide

See the full list, filter by size, metro and specialty, and access 18,469 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Well testing companies worldwide at a glance

As of Sep 22, 2026
25.0%Verified-email coverage
150.0Average contacts per company
11-50Median size (employees)
5.9%Largest-city concentration · Houston
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
149
11-50
154
51-200
125
201-500
33
501-1,000
16
1,001-5,000
9
5,001-10,000
2
10001+
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for well testing companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “well testing companies” 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. 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 18,469 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.

Well testing companies by location

2 lists · largest first

Every Well testing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many well testing companies are there worldwide?

RevenueBase identified 493 company matches for well testing companies worldwide 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?

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

Which country has the most well testing companies?

The United States leads with 163 companies, followed by Canada (41). Every well testing companies list by country and city is linked on this page.

Which city has the most well testing companies?

Houston leads with 29 company records, followed by Calgary (19) and Midland (15).

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 18,469 professional contacts with verified work emails tracked across these 493 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.