Company lists · Data refreshed November 2026

Top 25 Industrial drilling contractors worldwide

RevenueBase identified 5,511 company matches for industrial drilling contractors worldwide as of November 2026 and tracks 158,819 professional contacts across them, including 25,379 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for industrial drilling contractors 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 November 6, 2026. Country and city lists for industrial drilling contractors 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 Nov 6, 2026 How this list was built
5,511Companies
158,819Contacts tracked
25,379Verified emails
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The 25 largest industrial drilling contractors worldwide

Ranked by team size
Top 25 of 5,511 company matches for industrial drilling contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchWest Valley City, United StatesHQ recorded Nov 6, 20265,001-10,0003,644 contacts →

Exact match

“Established in 1890, Boart Longyear is the world’s leading innovative provider of drilling services, manufacturer of productivity-driven drilling equipment and performance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHouston, United StatesHQ recorded Nov 6, 20265,001-10,0003,352 contacts →

Exact match

“We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBaton Rouge, NC, United StatesHQ recorded Nov 6, 20261,001-5,0003,119 contacts →

Exact match

“We began as a merit shop general industrial contractor back in 1979.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 20261,001-5,0002,887 contacts →

Exact match

“Shelf Drilling is a wholly owned subsidiary of ADES Holding Company, a leading international oil and gas drilling services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCalgary, TX, CanadaHQ recorded Nov 6, 20265,001-10,0002,730 contacts →

Exact match

“Precision is a leading provider of safe and High Performance, High-Value services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202610001+2,552 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSandnes, NorwayHQ recorded Nov 6, 20265,001-10,0002,455 contacts →

Exact match

“Archer is a company providing drilling and well services to the global energy industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 20261,001-5,0002,359 contacts →

Exact match

“Ensign Energy Services Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchComuna 1, ArgentinaHQ recorded Nov 6, 20261,001-5,0002,324 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNorth Bay, ON, CanadaHQ recorded Nov 6, 20265,001-10,0002,307 contacts →

Exact match

“Established in 1962, The Redpath Group is an experienced, full-service solutions provider to the global underground mining industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCairo, EgyptHQ recorded Nov 6, 20265,001-10,0002,168 contacts →

Exact match

“EDC is one of the leading drilling contractors in Egypt and the MENA region; established in 1976 in partnership with Maersk Drilling, EDC is now 100% owned by Egyptian General…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPerth Airport, United StatesHQ recorded Nov 6, 20265,001-10,0002,137 contacts →

Exact match

“Byrnecut is an internationally renowned specialist underground mining contractor, offering a unique range of services and in-depth experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMauritius, AustriaHQ recorded Nov 6, 20261,001-5,0001,681 contacts →

Exact match

“Capital Limited is a leading service provider for the exploration and mining industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMoncton, NB, CanadaHQ recorded Nov 6, 20261,001-5,0001,607 contacts →

Exact match

“Major Drilling Group International Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchOuargla, AlgeriaHQ recorded Nov 6, 20265,001-10,0001,497 contacts →

Exact match

“National Drilling Company”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSouth Jakarta, IndonesiaHQ recorded Nov 6, 20261,001-5,0001,344 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMuscat, OmanHQ recorded Nov 6, 20261,001-5,0001,315 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchThe Woodlands, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,245 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchApplecross, NV, AustraliaHQ recorded Nov 6, 20261,001-5,0001,236 contacts →

Exact match

“Mader Group is a leading global provider of specialist technical services across the mining, energy and industrial sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBrazilHQ recorded Nov 6, 20261,001-5,0001,217 contacts →

Exact match

“A Queiroz Galvão Óleo e Gás (QGOG) é a maior companhia privada de prestação de serviços de perfuração e produção do Brasil.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 20261,001-5,0001,185 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 · Nov 6, 2026 · View company records in RevenueBase
22Exact matchFochville, South AfricaHQ recorded Nov 6, 20261,001-5,0001,036 contacts →

Exact match

“Master Drilling, established in 1986, is a global technology solutions driven company; focused on delivering a fully mechanised range of services to the mining sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchJakarta, IndonesiaHQ recorded Nov 6, 20261,001-5,0001,032 contacts →

Exact match

“PT Patra Drilling Contractor (PDC) is a subsidiary of PT Pertamina Drilling Services Indonesia (PDSI), which operates under the Sub-holding Upstream of PT Pertamina (Persero).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchVaughan, ON, CanadaHQ recorded Nov 6, 20261,001-5,000992 contacts →

Exact match

“With a client-centric approach, DMC Mining Services is renowned for being a proven partner capable of delivering safe and innovative solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAlagoinhas, BrazilHQ recorded Nov 6, 2026501-1,000763 contacts →

Exact match

“Referência de compromisso e seriedade, a Braserv é uma empresa nacional que atua desde 2009 no mercado.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 5,511 industrial drilling contractors worldwide

See the full list, filter by size, metro and specialty, and access 25,379 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial drilling contractors worldwide at a glance

As of Nov 6, 2026
16.0%Verified-email coverage
28.8Average contacts per company
11-50Median size (employees)
1.7%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,866
11-50
1,987
51-200
923
201-500
390
501-1,000
142
1,001-5,000
94
5,001-10,000
15
10001+
6

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 industrial drilling contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “industrial drilling contractors” 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 25,379 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 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.

Industrial drilling contractors by location

32 lists · largest first

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

Countries

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 “industrial drilling contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial drilling contractors are there worldwide?

RevenueBase identified 5,511 company matches for industrial drilling contractors worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

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

Which country has the most industrial drilling contractors?

The United States leads with 1,140 companies, followed by Canada (373) and Australia (330). Every industrial drilling contractors list by country and city is linked on this page.

Which city has the most industrial drilling contractors?

Houston leads with 93 company records, followed by Calgary (47) and Ankara (41).

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 25,379 professional contacts with verified work emails tracked across these 5,511 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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.