Company lists · Data refreshed October 2026

Top 25 Drilling rig construction companies worldwide

RevenueBase identified 3,626 company matches for drilling rig construction companies worldwide as of October 2026 and tracks 171,216 professional contacts across them, including 27,036 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for drilling rig construction 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 October 11, 2026. Country and city lists for drilling rig construction 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 Oct 11, 2026 How this list was built
3,626Companies
171,216Contacts tracked
27,036Verified emails
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The 25 largest drilling rig construction companies worldwide

Ranked by team size
Top 25 of 3,626 company matches for drilling rig construction companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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 Oct 11, 202610001+6,266 contacts →

Exact match

“Nabors Industries is a leading provider of advanced technology for the energy industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20265,001-10,0005,939 contacts →

Exact match

“Noble is a leading offshore drilling contractor for the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3Exact matchWest Valley City, UT, United StatesHQ recorded Oct 11, 20265,001-10,0003,518 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 · Oct 11, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20265,001-10,0003,263 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 · Oct 11, 2026 · View company records in RevenueBase
5Exact matchDubai, United Arab EmiratesHQ recorded Oct 11, 20261,001-5,0002,770 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 · Oct 11, 2026 · View company records in RevenueBase
6Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 20265,001-10,0002,622 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 · Oct 11, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Oct 11, 202610001+2,444 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 · Oct 11, 2026 · View company records in RevenueBase
8Exact matchSandnes, NorwayHQ recorded Oct 11, 20265,001-10,0002,399 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 20261,001-5,0002,277 contacts →

Exact match

“Ensign Energy Services Inc.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10Exact matchComuna 1, ArgentinaHQ recorded Oct 11, 20261,001-5,0002,247 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 · Oct 11, 2026 · View company records in RevenueBase
11Exact matchCairo, EgyptHQ recorded Oct 11, 20265,001-10,0002,102 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 · Oct 11, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20261,001-5,0002,076 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 · Oct 11, 2026 · View company records in RevenueBase
13Exact matchAl-khobar, Saudi ArabiaHQ recorded Oct 11, 20265,001-10,0002,072 contacts →

Exact match

“We are the region’s trusted onshore and offshore oil & gas drilling company with an extensive track record of operational excellence and advanced capabilities that have enabled…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Oct 11, 20261,001-5,0001,805 contacts →

Exact match

“Borr Drilling Limited is an offshore shallow-water drilling contractor providing worldwide offshore drilling services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20265,001-10,0001,652 contacts →

Exact match

“Oil States International, Inc.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchUnited StatesHQ recorded Oct 11, 20261,001-5,0001,501 contacts →

Exact match

“Somos uma empresa focada em oferecer soluções em Perfuração Offshore, com expertise e excelência em afretamento e operação de sondas para águas ultraprofundas.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17Exact matchOuargla, AlgeriaHQ recorded Oct 11, 20265,001-10,0001,464 contacts →

Exact match

“National Drilling Company”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18Exact matchDoha, QatarHQ recorded Oct 11, 20261,001-5,0001,445 contacts →

Exact match

“Gulf Drilling International Limited (GDI) was established in May 2004 as a joint venture between Qatar Petroleum (QP) and Japan Drilling Company (JDC), making it the first Qatari…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchSouth Jakarta, IndonesiaHQ recorded Oct 11, 20261,001-5,0001,300 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20Exact matchDammam, Saudi ArabiaHQ recorded Oct 11, 20261,001-5,0001,280 contacts →

Exact match

“ARO is a world-class offshore drilling contractor that owns, operates, and manages a fleet of high-specification and premium jack-up rigs in Saudi Arabia.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21Exact matchMuscat, OmanHQ recorded Oct 11, 20261,001-5,0001,274 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchAmsterdam, NetherlandsHQ recorded Oct 11, 20261,001-5,0001,165 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 · Oct 11, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20261,001-5,0001,145 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 · Oct 11, 2026 · View company records in RevenueBase
24Exact matchHamilton, BermudaHQ recorded Oct 11, 2026501-1,0001,041 contacts →

Exact match

“Vantage is an international offshore drilling contractor, formed in 2007, which markets, operates and manages modern, high specification drilling rigs.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25Exact matchUnited StatesHQ recorded Oct 11, 20261,001-5,0001,017 contacts →

Exact match

“Empresa líder en el Sector Petrolero, con presencia a Nivel Nacional, principales clientes PEMEX Y CFE, con servicios como perforación de pozos terrestres, Marinos, Geotérmicos…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 25 of 3,626 drilling rig construction companies worldwide

See the full list, filter by size, metro and specialty, and access 27,036 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Drilling rig construction companies worldwide at a glance

As of Oct 11, 2026
15.8%Verified-email coverage
47.2Average contacts per company
11-50Median size (employees)
4.6%Largest-city concentration · Houston
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
967
11-50
1,270
51-200
770
201-500
329
501-1,000
133
1,001-5,000
107
5,001-10,000
22
10001+
10

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 drilling rig construction companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “drilling rig construction 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 27,036 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 11, 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.

Drilling rig construction companies by location

25 lists · largest first

Every Drilling rig construction companies 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 “drilling rig construction companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many drilling rig construction companies are there worldwide?

RevenueBase identified 3,626 company matches for drilling rig construction companies 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?

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

Which country has the most drilling rig construction companies?

The United States leads with 859 companies, followed by Canada (276) and the United Kingdom (167). Every drilling rig construction companies list by country and city is linked on this page.

Which city has the most drilling rig construction companies?

Houston leads with 166 company records, followed by Calgary (64) and Dubai (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 27,036 professional contacts with verified work emails tracked across these 3,626 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 11, 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.