Company lists · Data refreshed October 2026
Top 25 Downhole testing services worldwide
RevenueBase identified 845 company matches for downhole testing services worldwide as of October 2026 and tracks 21,118 professional contacts across them, including 4,361 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers company matches for downhole testing services 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 October 24, 2026. Country and city lists for downhole testing services 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.
The 25 largest downhole testing services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,697 contacts → | ||||
Exact match “Every year, drilling teams make decisions worth millions of dollars on incomplete information.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 2 | 506 contacts → | ||||
Exact match “Ranger is one of the largest providers of high specification mobile rig well services, cased hole wireline services, and ancillary services in the U.S.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 3 | 475 contacts → | ||||
Exact match “HLS Asia Limited (HLSA) is a joint venture company between Halliburton USA & Indian partners providing Wire-line Logging, Slickline, Perforation and related services to upstream…” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 4 | 445 contacts → | ||||
Exact match “Only Thru Tubing Solutions offers the specialized downhole equipment and services to deliver the results you need, right when you need them.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 5 | 429 contacts → | ||||
Exact match “Geoquip Marine is a geotechnical data acquisition company safely delivering offshore geotechnical site investigations and engineering services to clients worldwide.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 6 | 426 contacts → | ||||
Exact match “Summit ESP is a service of Halliburton that provides integrated Electric Submersible Pumping systems to enhance daily well production and total reservoir recovery.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 7 | 391 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 · Oct 24, 2026 · View company records in RevenueBase | |||||
| 8 | 345 contacts → | ||||
Exact match “ADA is a global energy services company specializing in advanced drilling solutions for oil, gas, and geothermal applications.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 9 | 313 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 · Oct 24, 2026 · View company records in RevenueBase | |||||
| 10 | 284 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 · Oct 24, 2026 · View company records in RevenueBase | |||||
| 11 | 283 contacts → | ||||
Exact match “NOV™ IntelliServ® provides the oil and gas industry with broadband networked drillstrings and along-string evaluation that enables downhole conditions to be measured, evaluated…” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 12 | 249 contacts → | ||||
Exact match “Setting the Standard in Well Completion, Perforating, Seismic and Well Abandonment Technologies.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 13 | 221 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 · Oct 24, 2026 · View company records in RevenueBase | |||||
| 14 | 212 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 · Oct 24, 2026 · View company records in RevenueBase | |||||
| 15 | 202 contacts → | ||||
Exact match “REMICSA DRILLING SA It is a company with 100% Peruvian capital created in 1996, leader in the market of diamond drilling in Peru and with presence abroad since 2003 (Zambia…” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 16 | 199 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 · Oct 24, 2026 · View company records in RevenueBase | |||||
| 17 | 194 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 · Oct 24, 2026 · View company records in RevenueBase | |||||
| 18 | 194 contacts → | ||||
Exact match “SeaLand Engineering & Well Services is established through multinational investment.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 19 | 188 contacts → | ||||
Exact match “GEODynamics creates and delivers downhole solutions that enable unsurpassed oil and gas well economics, performance, and lifespan.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 20 | 187 contacts → | ||||
Exact match “Metrol is committed to providing efficient, reliable and cost effective downhole wireless solutions for the oil industry using acoustic, electromagnetic and inductive telemetry.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 21 | 170 contacts → | ||||
Exact match “Seamless Integration Magnum Technology Center designs and manufactures complete equipment packages for Well Testing, Early Production Facilities, Underbalanced Drilling and…” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 22 | 159 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 · Oct 24, 2026 · View company records in RevenueBase | |||||
| 23 | 153 contacts → | ||||
Exact match “Now hiring in all 8 districts.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 24 | 137 contacts → | ||||
Exact match “Since 1989 WWT International (WWT) has been developing unique products to help operators reach farther in drilling, completion and intervention worldwide.” Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase | |||||
| 25 | 133 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 · Oct 24, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “downhole testing services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 845 downhole testing services worldwide
See the full list, filter by size, metro and specialty, and access 4,361 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Downhole testing services worldwide at a glance
As of Oct 24, 2026Companies by employee count
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 downhole testing services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “downhole testing services” 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 4,361 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 October 24, 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.
Downhole testing services by location
6 lists · largest firstEvery Downhole testing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Downhole testing services based in the United States291
- Downhole testing services based in Canada85
- Downhole testing services based in the United Kingdom49
Cities
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 “downhole testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many downhole testing services are there worldwide?
RevenueBase identified 845 company matches for downhole testing services worldwide as of October 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?
Geolog International tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most downhole testing services?
The United States leads with 291 companies, followed by Canada (85) and the United Kingdom (49). Every downhole testing services list by country and city is linked on this page.
Which city has the most downhole testing services?
Houston leads with 59 company records, followed by Calgary (39) and Midland (32).
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 4,361 professional contacts with verified work emails tracked across these 845 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 October 24, 2026.
Ready to reach these companies? Verified emails and direct dials for all 845 downhole testing services worldwide. 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.
More company lists
Company intelligence · public preview
Top 25 downhole testing services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 845 matching company records for downhole testing services worldwide, with 21,118 tracked contacts and 4,361 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 24, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 downhole testing services worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Geolog Internationalgeolog.comHQ: Dubai, United Arab EmiratesReported employees: 1,001-5,000 | Dubai, United Arab Emirates | 1,001-5,000 | Exact match | 1,697 contacts → |
“Every year, drilling teams make decisions worth millions of dollars on incomplete information.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Ranger Energy Services, LLCrangerenergy.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 506 contacts → |
“Ranger is one of the largest providers of high specification mobile rig well services, cased hole wireline services, and ancillary services in the U.S.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  HLS Asia Limitedhlsasia.comHQ: Noida, IndiaReported employees: 201-500 | Noida, India | 201-500 | Exact match | 475 contacts → |
“HLS Asia Limited (HLSA) is a joint venture company between Halliburton USA & Indian partners providing Wire-line Logging, Slickline, Perforation and related services to upstream…” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Thru Tubing Solutionsthrutubing.comHQ: Newcastle, OK, United StatesReported employees: 501-1,000 | Newcastle, OK, United States | 501-1,000 | Exact match | 445 contacts → |
“Only Thru Tubing Solutions offers the specialized downhole equipment and services to deliver the results you need, right when you need them.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Geoquip Marinegeoquip-marine.comHQ: 9001 St. Gallen, SwitzerlandReported employees: 201-500 | 9001 St. Gallen, Switzerland | 201-500 | Exact match | 429 contacts → |
“Geoquip Marine is a geotechnical data acquisition company safely delivering offshore geotechnical site investigations and engineering services to clients worldwide.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Summit ESPsummitesp.com HQ: Tulsa, OK, United StatesReported employees: 501-1,000 | Tulsa, OK, United States | 501-1,000 | Exact match | 426 contacts → |
“Summit ESP is a service of Halliburton that provides integrated Electric Submersible Pumping systems to enhance daily well production and total reservoir recovery.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Express Energy Serviceseeslp.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 391 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  AIR Drilling Associatesairdrilling.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 345 contacts → |
“ADA is a global energy services company specializing in advanced drilling solutions for oil, gas, and geothermal applications.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  AL Ahlia Oilfields Development Companyalahliagroup.comHQ: Abu Dhabi, United Arab EmiratesReported employees: 201-500 | Abu Dhabi, United Arab Emirates | 201-500 | Exact match | 313 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: United StatesReported employees: 1,001-5,000 | United States | 1,001-5,000 | Exact match | 284 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Intelliservnov.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 283 contacts → |
“NOV™ IntelliServ® provides the oil and gas industry with broadband networked drillstrings and along-string evaluation that enables downhole conditions to be measured, evaluated…” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Dynaenergeticsdynaenergetics.comHQ: Troisdorf, GermanyReported employees: 201-500 | Troisdorf, Germany | 201-500 | Exact match | 249 contacts → |
“Setting the Standard in Well Completion, Perforating, Seismic and Well Abandonment Technologies.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Special Oilfield Services Co. LLCspecialoilfield.comHQ: Muscat, OmanReported employees: 501-1,000 | Muscat, Oman | 501-1,000 | Exact match | 221 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Bond Energy Solutionsbondenergy.comHQ: Bogotá D.c., ColombiaReported employees: 501-1,000 | Bogotá D.c., Colombia | 501-1,000 | Exact match | 212 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Remicsa Drilling S.A. Redrilsa Oficialredrilsa.com.peHQ: Lima, PeruReported employees: 51-200 | Lima, Peru | 51-200 | Exact match | 202 contacts → |
“REMICSA DRILLING SA It is a company with 100% Peruvian capital created in 1996, leader in the market of diamond drilling in Peru and with presence abroad since 2003 (Zambia…” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Rakiduamnrakiduamn.com.arHQ: Campo Grande, ArgentinaReported employees: 201-500 | Campo Grande, Argentina | 201-500 | Exact match | 199 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Renegade Servicesrenegadewls.com HQ: Levelland, TX, United StatesReported employees: 501-1,000 | Levelland, TX, United States | 501-1,000 | Exact match | 194 contacts → |
“Renegade Services is the largest privately owned wireline service company servicing the oil and gas industry in the United States.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Sealand Engineering And Well Servicessealandws.comHQ: Tehran, IranReported employees: 201-500 | Tehran, Iran | 201-500 | Exact match | 194 contacts → |
“SeaLand Engineering & Well Services is established through multinational investment.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Geodynamics, INCperf.com HQ: Millsap, TX, United StatesReported employees: 201-500 | Millsap, TX, United States | 201-500 | Exact match | 188 contacts → |
“GEODynamics creates and delivers downhole solutions that enable unsurpassed oil and gas well economics, performance, and lifespan.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Metrolmetrol.co.ukHQ: Dyce, United StatesReported employees: 201-500 | Dyce, United States | 201-500 | Exact match | 187 contacts → |
“Metrol is committed to providing efficient, reliable and cost effective downhole wireless solutions for the oil industry using acoustic, electromagnetic and inductive telemetry.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Magnum Technology Center FZEmtc-intl.comHQ: Dubai, United Arab EmiratesReported employees: 51-200 | Dubai, United Arab Emirates | 51-200 | Exact match | 170 contacts → |
“Seamless Integration Magnum Technology Center designs and manufactures complete equipment packages for Well Testing, Early Production Facilities, Underbalanced Drilling and…” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Scantech Offshore Part Of James Fisher Energyjames-fisher.comHQ: Great Yarmouth, United KingdomReported employees: 51-200 | Great Yarmouth, United Kingdom | 51-200 | Exact match | 159 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  American Cementing, LLCamericancementing.comHQ: Tulsa, OK, United StatesReported employees: 501-1,000 | Tulsa, OK, United States | 501-1,000 | Exact match | 153 contacts → |
“Now hiring in all 8 districts.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  WWT Internationalwwtco.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 137 contacts → |
“Since 1989 WWT International (WWT) has been developing unique products to help operators reach farther in drilling, completion and intervention worldwide.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Petricorepetricore.comHQ: Villahermosa, TX, MexicoReported employees: 201-500 | Villahermosa, TX, Mexico | 201-500 | Exact match | 133 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 845 company matches
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Downhole testing services: dataset insights
October 24, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
842 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 845 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 24, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Downhole testing services by location
6 lists · largest firstEvery Downhole testing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Downhole testing services based in the United States291
- Downhole testing services based in Canada85
- Downhole testing services based in the United Kingdom49
Cities
Questions about this company list
What does Exact match mean for downhole testing services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many downhole testing services did RevenueBase find worldwide?
The saved snapshot records 845 matching company records, 21,118 tracked contacts and 4,361 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 24, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 downhole testing services worldwide. Snapshot: October 24, 2026. https://revenuebase.ai/companies/browse/downhole-testing-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 downhole testing services worldwide
RevenueBase records 845 matching company records for downhole testing services worldwide, with 21,118 tracked contacts and 4,361 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 24, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 downhole testing services worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Geolog Internationalgeolog.com HQ: Dubai, United Arab EmiratesReported employees: 1,001-5,000 | Dubai, United Arab Emirates | 1,001-5,000 | Exact match | 1,697 contacts → |
“Every year, drilling teams make decisions worth millions of dollars on incomplete information.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ranger Energy Services, LLCrangerenergy.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 506 contacts → |
“Ranger is one of the largest providers of high specification mobile rig well services, cased hole wireline services, and ancillary services in the U.S.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HLS Asia Limitedhlsasia.com HQ: Noida, IndiaReported employees: 201-500 | Noida, India | 201-500 | Exact match | 475 contacts → |
“HLS Asia Limited (HLSA) is a joint venture company between Halliburton USA & Indian partners providing Wire-line Logging, Slickline, Perforation and related services to upstream…” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Thru Tubing Solutionsthrutubing.com HQ: Newcastle, OK, United StatesReported employees: 501-1,000 | Newcastle, OK, United States | 501-1,000 | Exact match | 445 contacts → |
“Only Thru Tubing Solutions offers the specialized downhole equipment and services to deliver the results you need, right when you need them.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Geoquip Marinegeoquip-marine.com HQ: 9001 St. Gallen, SwitzerlandReported employees: 201-500 | 9001 St. Gallen, Switzerland | 201-500 | Exact match | 429 contacts → |
“Geoquip Marine is a geotechnical data acquisition company safely delivering offshore geotechnical site investigations and engineering services to clients worldwide.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Summit ESPsummitesp.com HQ: Tulsa, OK, United StatesReported employees: 501-1,000 | Tulsa, OK, United States | 501-1,000 | Exact match | 426 contacts → |
“Summit ESP is a service of Halliburton that provides integrated Electric Submersible Pumping systems to enhance daily well production and total reservoir recovery.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Express Energy Serviceseeslp.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 391 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | AIR Drilling Associatesairdrilling.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 345 contacts → |
“ADA is a global energy services company specializing in advanced drilling solutions for oil, gas, and geothermal applications.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | AL Ahlia Oilfields Development Companyalahliagroup.com HQ: Abu Dhabi, United Arab EmiratesReported employees: 201-500 | Abu Dhabi, United Arab Emirates | 201-500 | Exact match | 313 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: United StatesReported employees: 1,001-5,000 | United States | 1,001-5,000 | Exact match | 284 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Intelliservnov.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 283 contacts → |
“NOV™ IntelliServ® provides the oil and gas industry with broadband networked drillstrings and along-string evaluation that enables downhole conditions to be measured, evaluated…” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Dynaenergeticsdynaenergetics.com HQ: Troisdorf, GermanyReported employees: 201-500 | Troisdorf, Germany | 201-500 | Exact match | 249 contacts → |
“Setting the Standard in Well Completion, Perforating, Seismic and Well Abandonment Technologies.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Special Oilfield Services Co. LLCspecialoilfield.com HQ: Muscat, OmanReported employees: 501-1,000 | Muscat, Oman | 501-1,000 | Exact match | 221 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Bond Energy Solutionsbondenergy.com HQ: Bogotá D.c., ColombiaReported employees: 501-1,000 | Bogotá D.c., Colombia | 501-1,000 | Exact match | 212 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Remicsa Drilling S.A. Redrilsa Oficialredrilsa.com.pe HQ: Lima, PeruReported employees: 51-200 | Lima, Peru | 51-200 | Exact match | 202 contacts → |
“REMICSA DRILLING SA It is a company with 100% Peruvian capital created in 1996, leader in the market of diamond drilling in Peru and with presence abroad since 2003 (Zambia…” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Rakiduamnrakiduamn.com.ar HQ: Campo Grande, ArgentinaReported employees: 201-500 | Campo Grande, Argentina | 201-500 | Exact match | 199 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Renegade Servicesrenegadewls.com HQ: Levelland, TX, United StatesReported employees: 501-1,000 | Levelland, TX, United States | 501-1,000 | Exact match | 194 contacts → |
“Renegade Services is the largest privately owned wireline service company servicing the oil and gas industry in the United States.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Sealand Engineering And Well Servicessealandws.com HQ: Tehran, IranReported employees: 201-500 | Tehran, Iran | 201-500 | Exact match | 194 contacts → |
“SeaLand Engineering & Well Services is established through multinational investment.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Geodynamics, INCperf.com HQ: Millsap, TX, United StatesReported employees: 201-500 | Millsap, TX, United States | 201-500 | Exact match | 188 contacts → |
“GEODynamics creates and delivers downhole solutions that enable unsurpassed oil and gas well economics, performance, and lifespan.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Metrolmetrol.co.uk HQ: Dyce, United StatesReported employees: 201-500 | Dyce, United States | 201-500 | Exact match | 187 contacts → |
“Metrol is committed to providing efficient, reliable and cost effective downhole wireless solutions for the oil industry using acoustic, electromagnetic and inductive telemetry.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Magnum Technology Center FZEmtc-intl.com HQ: Dubai, United Arab EmiratesReported employees: 51-200 | Dubai, United Arab Emirates | 51-200 | Exact match | 170 contacts → |
“Seamless Integration Magnum Technology Center designs and manufactures complete equipment packages for Well Testing, Early Production Facilities, Underbalanced Drilling and…” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Scantech Offshore Part Of James Fisher Energyjames-fisher.com HQ: Great Yarmouth, United KingdomReported employees: 51-200 | Great Yarmouth, United Kingdom | 51-200 | Exact match | 159 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | American Cementing, LLCamericancementing.com HQ: Tulsa, OK, United StatesReported employees: 501-1,000 | Tulsa, OK, United States | 501-1,000 | Exact match | 153 contacts → |
“Now hiring in all 8 districts.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | WWT Internationalwwtco.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 137 contacts → |
“Since 1989 WWT International (WWT) has been developing unique products to help operators reach farther in drilling, completion and intervention worldwide.” Recorded description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Petricorepetricore.com HQ: Villahermosa, TX, MexicoReported employees: 201-500 | Villahermosa, TX, Mexico | 201-500 | Exact match | 133 contacts → |
“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 description excerpt · October 24, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 845 company matches
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Downhole testing services: dataset insights
October 24, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
842 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 845 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 24, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Downhole testing services by location
6 lists · largest firstEvery Downhole testing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Downhole testing services based in the United States291
- Downhole testing services based in Canada85
- Downhole testing services based in the United Kingdom49
Cities
Questions about this company list
What does Exact match mean for downhole testing services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many downhole testing services did RevenueBase find worldwide?
The saved snapshot records 845 matching company records, 21,118 tracked contacts and 4,361 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 24, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 downhole testing services worldwide. Snapshot: October 24, 2026. https://revenuebase.ai/companies/browse/downhole-testing-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗