Company lists · Data refreshed September 2026

Top 25 Downhole tool installation companies worldwide

RevenueBase identified 2,371 company matches for downhole tool installation companies worldwide as of September 2026 and tracks 146,275 professional contacts across them, including 37,266 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for downhole tool installation 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 19, 2026. Country and city lists for downhole tool installation 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 19, 2026 How this list was built
2,371Companies
146,275Contacts tracked
37,266Verified emails
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The 25 largest downhole tool installation companies worldwide

Ranked by team size
Top 25 of 2,371 company matches for downhole tool installation companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 19, 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 19, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20265,001-10,0006,466 contacts →

Exact match

“Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Sep 19, 202610001+2,317 contacts →

Exact match

“Patterson-UTI is a leading provider of drilling and completion services to oil and natural gas exploration and production companies in the United States and other select…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchDubai, United Arab EmiratesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20265,001-10,0002,215 contacts →

Exact match

“Oil States International, Inc.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchComuna 1, ArgentinaHQ recorded Sep 19, 20261,001-5,0002,064 contacts →

Exact match

“Somos la mayor prestadora de servicios de perforación de la Argentina y somos líderes en la prestación de servicios asociados al mantenimiento y optimización de los pozos de…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,0001,938 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 · Sep 19, 2026 · View company records in RevenueBase
8Exact matchDubai, United Arab EmiratesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
9Exact matchDubai, United Arab EmiratesHQ recorded Sep 19, 20265,001-10,0001,407 contacts →

Exact match

“Anton Oilfield Services Group (hereinafter as “Anton”) is the world's leading integrated oilfield technology service company that provides clients with a full range of products…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchKaty, TX, United StatesHQ recorded Sep 19, 20261,001-5,0001,244 contacts →

Exact match

“Newpark Fluids Systems is the world’s leading pure-play oil & gas and geothermal fluid solutions provider.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchMuscat, OmanHQ recorded Sep 19, 20261,001-5,0001,244 contacts →

Exact match

“Abraj Energy Services ("Abraj"), was founded in May 2006 and has taken major strides.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchSouth Jakarta, IndonesiaHQ recorded Sep 19, 20261,001-5,0001,200 contacts →

Exact match

“PT Pertamina Drilling Services Indonesia (Pertamina Drilling) was established on June 13th, 2008.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,0001,135 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 · Sep 19, 2026 · View company records in RevenueBase
14Exact matchThe Woodlands, TX, United StatesHQ recorded Sep 19, 20261,001-5,0001,134 contacts →

Exact match

“THE ULTIMATE PARTNER IN WELLBORE PLACEMENT Scientific Drilling International is an independent service provider offering a complete high accuracy wellbore placement and drilling…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchAmsterdam, United StatesHQ recorded Sep 19, 20261,001-5,0001,097 contacts →

Exact match

“HMH is a premier drilling solutions provider - delivering a broad portfolio of products and services that are designed to be the safest and most efficient in the industry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchLondon W2 2es, United KingdomHQ recorded Sep 19, 20261,001-5,000933 contacts →

Exact match

“Excellence Logging is an established energy services provider focused on optimizing well performance.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,000857 contacts →

Exact match

“KLX Energy Services provides more than 100 mission-critical oilfield services, tools, technologies and equipment to some of the industry’s leading operators.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchHumble, TX, United StatesHQ recorded Sep 19, 20261,001-5,000844 contacts →

Exact match

“Innovex International, Inc (NYSE: INVX) is a Houston-based company established in 2024 following the merger of Dril-Quip, Inc and Innovex Downhole Solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchMuscat, OmanHQ recorded Sep 19, 20261,001-5,000748 contacts →

Exact match

“MB Petroleum Services is a multinational corporation providing cost-effective quality drilling, integrated well services and integrated production services worldwide with the…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,000744 contacts →

Exact match

“Wellbore Integrity Solutions provides superior technologies and global service domain expertise, enabling our customers to enhance the full lifecycle of their wells by solving…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,000712 contacts →

Exact match

“With a culture built on high performance and flawless execution, Nine Energy Service is a unique kind of oilfield services company, offering industry-shaping completion solutions…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchEast Ahmadi, KuwaitHQ recorded Sep 19, 20261,001-5,000697 contacts →

Exact match

“KUWAIT DRILLING CO.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchPort Of Spain, Trinidad and TobagoHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
24Exact matchUsa, United KingdomHQ recorded Sep 19, 2026501-1,000665 contacts →

Exact match

“Delta Corporation specializes in the design and manufacture of API-compliant wellhead equipment and pressure control systems for both onshore and offshore oil and gas operations.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchAlice, TX, United StatesHQ recorded Sep 19, 20261,001-5,000651 contacts →

Exact match

“FESCO is a diversified energy services company providing quality equipment and experienced personnel since 1949.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 2,371 downhole tool installation companies worldwide

See the full list, filter by size, metro and specialty, and access 37,266 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Downhole tool installation companies worldwide at a glance

As of Sep 19, 2026
25.5%Verified-email coverage
61.7Average contacts per company
11-50Median size (employees)
7.0%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
651
11-50
865
51-200
514
201-500
190
501-1,000
63
1,001-5,000
66
5,001-10,000
12
10001+
3

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 tool installation companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “downhole tool installation 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 37,266 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 19, 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 tool installation companies by location

10 lists · largest first

Every Downhole tool installation 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 “downhole tool installation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many downhole tool installation companies are there worldwide?

RevenueBase identified 2,371 company matches for downhole tool installation 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 downhole tool installation companies?

The United States leads with 770 companies, followed by Canada (194) and the United Kingdom (109). Every downhole tool installation companies list by country and city is linked on this page.

Which city has the most downhole tool installation companies?

Houston leads with 167 company records, followed by Calgary (86) and Midland (52).

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 37,266 professional contacts with verified work emails tracked across these 2,371 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 19, 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.