Company lists · Data refreshed November 2026

Top 25 Structural drilling contractors worldwide

Name: Structural drilling contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 7,587 companies tracked

RevenueBase identified 7,587 company matches for structural drilling contractors worldwide as of November 2026 and tracks 153,039 professional contacts across them, including 29,111 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for structural 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 structural 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

7,587Companies

153,039Contacts tracked

29,111Verified emails

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The 25 largest structural drilling contractors worldwide

Ranked by team size

Top 25 of 7,587 company matches for structural 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Keller	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	4,408 contacts →
	Exact match “Every day, people around the world live, work and play on ground prepared by Keller, the world's largest geotechnical specialist contractor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Shelf Drilling	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 6, 2026	1,001-5,000	2,887 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
3	Patterson-Uti	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	10001+	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
4	Ensign Energy Services	Exact match	Calgary, AB, CanadaHQ recorded Nov 6, 2026	1,001-5,000	2,359 contacts →
	Exact match “Ensign Energy Services Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Baker Construction	Exact match	Monroe, OH, United StatesHQ recorded Nov 6, 2026	10001+	2,244 contacts →
	Exact match “The nation's largest concrete contractor, Baker Construction specializes in all types of concrete construction and related solutions, including civil construction, deep…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Egyptian Drilling Company EDC	Exact match	Cairo, EgyptHQ recorded Nov 6, 2026	5,001-10,000	2,168 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
7	Major Drilling	Exact match	Moncton, NB, CanadaHQ recorded Nov 6, 2026	1,001-5,000	1,607 contacts →
	Exact match “Major Drilling Group International Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	PT Pertamina Drilling Services Indonesia	Exact match	South Jakarta, IndonesiaHQ recorded Nov 6, 2026	1,001-5,000	1,344 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
9	Soletanche Bachy	Exact match	Rueil-malmaison, FranceHQ recorded Nov 6, 2026	5,001-10,000	1,306 contacts →
	Exact match “Soletanche Bachy is a world benchmark in foundations and soil technologies, and is involved in over projects every year.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Scientific Drilling	Exact match	The Woodlands, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,245 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
11	HMH	Exact match	Amsterdam, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	1,185 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
12	Phoenix Technology Services	Exact match	Calgary, WY, CanadaHQ recorded Nov 6, 2026	501-1,000	860 contacts →
	Exact match “Phoenix Technology Services delivers progressive directional drilling solutions to unconventional drilling markets around the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Dywidag	Exact match	Unterschleißheim, GermanyHQ recorded Nov 6, 2026	1,001-5,000	837 contacts →
	Exact match “Here at DYWIDAG, our mission is to make structures safer, stronger, and smarter.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Kuwait Drilling Co. K.S.C.C	Exact match	East Ahmadi, KuwaitHQ recorded Nov 6, 2026	1,001-5,000	759 contacts →
	Exact match “KUWAIT DRILLING CO.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Atwood Oceanics	Exact match	Houston, United StatesHQ recorded Nov 6, 2026	501-1,000	700 contacts →
	Exact match “Atwood Oceanics, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Geotec	Exact match	Ate, BelgiumHQ recorded Nov 6, 2026	1,001-5,000	690 contacts →
	Exact match “Geotec S.A, empresa de perforación perteneciente a Boyles Bros, fue fundado en 1963 posicionándose como una empresa líder en la industria minera peruana.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Trevi S.P.A	Exact match	Cesena, ItalyHQ recorded Nov 6, 2026	201-500	685 contacts →
	Exact match “Trevi, a company specialized in special foundations and soil consolidation, is part of the Trevi Group, a world leader in subsoil engineering and in the design and production of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	M&j Evans Construction Limited	Exact match	Aldridge, United KingdomHQ recorded Nov 6, 2026	201-500	596 contacts →
	Exact match “M&J Evans Construction Ltd, one of the largest groundworks and civil engineering business has been based in the West Midlands since 2003.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Velesto Energy Berhad	Exact match	Kuala Lumpur, MalaysiaHQ recorded Nov 6, 2026	501-1,000	577 contacts →
	Exact match “Velesto Energy Berhad is a Malaysia-based multinational provider of services for the upstream oil and gas sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	OIL And GAS Exploration Company Krakow LTD	Exact match	Krakow, PolandHQ recorded Nov 6, 2026	1,001-5,000	526 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Viking Services	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 6, 2026	501-1,000	520 contacts →
	Exact match “Viking Services is a fully integrated service company that provides services to the oil and gas and geothermal industries with the goal of becoming the most trusted and reliable…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Exalo Drilling S.A	Exact match	Piła, PolandHQ recorded Nov 6, 2026	1,001-5,000	516 contacts →
	Exact match “EXALO Driliing SA is a European leader among the onshore drilling companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Cactus Drilling CO	Exact match	Oklahoma City, OK, United StatesHQ recorded Nov 6, 2026	1,001-5,000	498 contacts →
	Exact match “As the largest privately-held domestic land drilling contractor in the United States, Cactus provides competent, motivated personnel utilizing premium equipment to meet and exceed…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Petreven	Exact match	Podenzano, ItalyHQ recorded Nov 6, 2026	501-1,000	492 contacts →
	Exact match “PETREVEN is a low impact Drilling Contractor (established in 1998 in Venezuela).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Foraco International SA	Exact match	Marseille, FranceHQ recorded Nov 6, 2026	1,001-5,000	491 contacts →
	Exact match “Foraco International SA (TSX: FAR) is a leading global mineral drilling services company that provides a comprehensive and reliable service offering in mining and water projects.” Recorded in the RevenueBase company graph · Nov 6, 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 “structural drilling contractors”. 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 7,587 structural drilling contractors worldwide

See the full list, filter by size, metro and specialty, and access 29,111 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Structural drilling contractors worldwide at a glance

As of Nov 6, 2026

19.0%Verified-email coverage

20.2Average contacts per company

11-50Median size (employees)

0.9%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,400

11-50

2,809

51-200

1,470

201-500

467

501-1,000

144

1,001-5,000

5,001-10,000

10001+

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 structural drilling contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “structural 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 29,111 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.

Structural drilling contractors by location

36 lists · largest first

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

How many structural drilling contractors are there worldwide?

RevenueBase identified 7,587 company matches for structural 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?

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

Which country has the most structural drilling contractors?

The United States leads with 1,285 companies, followed by the United Kingdom (692) and Brazil (401). Every structural drilling contractors list by country and city is linked on this page.

Which city has the most structural drilling contractors?

London leads with 69 company records, followed by Houston (66) and Dubai (56).

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 29,111 professional contacts with verified work emails tracked across these 7,587 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.