Company lists · Data refreshed September 2026

Top 25 Drilling rig supply companies worldwide

Name: Drilling rig supply companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 5,572 companies tracked

RevenueBase identified 5,572 drilling rig supply companies worldwide as of September 2026 and tracks 161,433 professional contacts across them, including 26,748 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers drilling rig supply companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for drilling rig supply companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

5,572Companies

161,433Contacts tracked

26,748Verified emails

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The 25 largest drilling rig supply companies worldwide

Ranked by team size

Top 25 of 5,572 drilling rig supply companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to drilling rig supply companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Nabors Industries	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	10001+	5,865 contacts →
	Indirect evidence “Nabors Industries is a leading provider of advanced technology for the energy industry.” Source: RevenueBase Database · checked Sep 19, 2026
2	Boart Longyear	Partial evidence	West Valley City, UT, United StatesHQ checked Sep 19, 2026	5,001-10,000	3,285 contacts →
	Partial evidence “Established in 1890, Boart Longyear is the world’s leading innovative provider of drilling services, manufacturer of productivity-driven drilling equipment and performance…” Source: RevenueBase Database · checked Sep 19, 2026
3	ADES	Partial evidence	Al Khobar, Saudi ArabiaHQ checked Sep 19, 2026	5,001-10,000	3,251 contacts →
	Partial evidence “ADES is a world-leading international provider of oil and gas drilling services.” Source: RevenueBase Database · checked Sep 19, 2026
4	Precision Drilling	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	5,001-10,000	2,471 contacts →
	Indirect evidence “Precision is a leading provider of safe and High Performance, High-Value services to the oil and gas industry.” Source: RevenueBase Database · checked Sep 19, 2026
5	Archer	Partial evidence	Sandnes, NorwayHQ checked Sep 19, 2026	5,001-10,000	2,373 contacts →
	Partial evidence “Archer is a company providing drilling and well services to the global energy industry.” Source: RevenueBase Database · checked Sep 19, 2026
6	Patterson-Uti	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	10001+	2,317 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
7	OIL States International	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	5,001-10,000	2,215 contacts →
	Indirect evidence “Oil States International, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
8	Ensign Energy Services	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	1,001-5,000	2,176 contacts →
	Indirect evidence “Ensign Energy Services Inc.” Source: RevenueBase Database · checked Sep 19, 2026
9	Egyptian Drilling Company EDC	Partial evidence	Cairo, EgyptHQ checked Sep 19, 2026	5,001-10,000	2,122 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
10	SAN Antonio Internacional	Indirect evidence	Comuna 1, ArgentinaHQ checked Sep 19, 2026	1,001-5,000	2,064 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
11	Arabian Drilling	Partial evidence	Al-khobar, Saudi ArabiaHQ checked Sep 19, 2026	5,001-10,000	2,042 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
12	Superior Energy Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,938 contacts →
	Indirect evidence “For oil & gas exploration and production companies worldwide, Superior Energy Services is an oilfield products and services company with global reach, financial stability and…” Source: RevenueBase Database · checked Sep 19, 2026
13	Weir OIL And GAS	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 19, 2026	n/a	1,651 contacts →
	Indirect evidence “Caterpillar Inc.(NYSE:CAT) has completed its acquisition of the Oil & Gas Division (“Weir Oil & Gas”) of the Weir Group PLC, a Scotland-based global engineering business.” Source: RevenueBase Database · checked Sep 19, 2026
14	Gulf Drilling International	Indirect evidence	Doha, QatarHQ checked Sep 19, 2026	1,001-5,000	1,398 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
15	Abraj Energy Services	Indirect evidence	Muscat, OmanHQ checked Sep 19, 2026	1,001-5,000	1,244 contacts →
	Indirect evidence “Abraj Energy Services ("Abraj"), was founded in May 2006 and has taken major strides.” Source: RevenueBase Database · checked Sep 19, 2026
16	PT Pertamina Drilling Services Indonesia	Partial evidence	South Jakarta, IndonesiaHQ checked Sep 19, 2026	1,001-5,000	1,200 contacts →
	Partial evidence “PT Pertamina Drilling Services Indonesia (Pertamina Drilling) was established on June 13th, 2008.” Source: RevenueBase Database · checked Sep 19, 2026
17	Rowan Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,182 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
18	Stewart & Stevenson	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,135 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
19	HMH	Partial evidence	Amsterdam, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,097 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
20	Carso Perforación	Indirect evidence	United StatesHQ checked Sep 19, 2026	1,001-5,000	994 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
21	Pertamina Patra Drilling Contractor	Partial evidence	Jakarta, IndonesiaHQ checked Sep 19, 2026	1,001-5,000	954 contacts →
	Partial evidence “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).” Source: RevenueBase Database · checked Sep 19, 2026
22	Phoenix Technology Services	Partial evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	501-1,000	821 contacts →
	Partial evidence “Phoenix Technology Services delivers progressive directional drilling solutions to unconventional drilling markets around the world.” Source: RevenueBase Database · checked Sep 19, 2026
23	DLS Archer	Indirect evidence	Neuquén, ArgentinaHQ checked Sep 19, 2026	1,001-5,000	803 contacts →
	Indirect evidence “Presentes en el mercado Argentino hace más de 45 años.” Source: RevenueBase Database · checked Sep 19, 2026
24	Sinotharwa Drilling Company	Partial evidence	Cairo, EgyptHQ checked Sep 19, 2026	1,001-5,000	781 contacts →
	Partial evidence “SinoTharwa is a high level cooperative project that took place between China and Egypt forming SinoTharwa Drilling Company as a petroleum services company.” Source: RevenueBase Database · checked Sep 19, 2026
25	MB Petroleum Services LLC	Partial evidence	Muscat, OmanHQ checked Sep 19, 2026	1,001-5,000	748 contacts →
	Partial evidence “MB Petroleum Services is a multinational corporation providing cost-effective quality drilling, integrated well services and integrated production services worldwide with the…” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: drilling rig supply companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names drilling rig supply companies.
Partial evidence: Its own public description names part of drilling rig supply companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name drilling rig supply companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 5,572 drilling rig supply companies worldwide

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Drilling rig supply companies worldwide at a glance

As of Sep 19, 2026

16.6%Verified-email coverage

29.0Average contacts per company

11-50Median size (employees)

4.9%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,786

11-50

1,939

51-200

1,105

201-500

422

501-1,000

156

1,001-5,000

112

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among drilling rig supply companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for drilling rig supply companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “drilling rig supply companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names drilling rig supply companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among drilling rig supply companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 26,748 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Drilling rig supply companies by location

30 lists · largest first

Every Drilling rig supply 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names drilling rig supply companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many drilling rig supply companies are there worldwide?

RevenueBase identified 5,572 drilling rig supply companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Nabors Industries, headquartered in Houston, tops this list with the largest team on record.

Which country has the most drilling rig supply companies?

The United States leads with 1,516 companies, followed by Canada (416) and India (252). Every drilling rig supply companies list by country and city is linked on this page.

Which city has the most drilling rig supply companies?

Houston leads with 275 headquartered companies, followed by Calgary (117) and Dubai (84).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 26,748 verified decision-maker contacts tracked across these 5,572 companies.

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 Smart Search, 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.