Company lists · Data refreshed November 2026

Top 25 Specialty drilling contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 8,189 companies tracked

RevenueBase identified 8,189 company matches for specialty drilling contractors worldwide as of November 2026 and tracks 161,033 professional contacts across them, including 32,167 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for specialty 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 specialty 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

8,189Companies

161,033Contacts tracked

32,167Verified emails

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The 25 largest specialty drilling contractors worldwide

Ranked by team size

Top 25 of 8,189 company matches for specialty 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	China Harbour Engineering Co. LTD	Exact match	Beijing, ChinaHQ recorded Nov 6, 2026	5,001-10,000	4,212 contacts →
	Exact match “CHEC is focused on basic infrastructure construction, such as Marine Engineering, Dredging and Reclamation, Road and Bridge, Railways, Airports, Complete Plant, and other works.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Boart Longyear	Exact match	West Valley City, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,644 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
3	Murphy	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	3,366 contacts →
	Exact match “Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Precision Drilling	Exact match	Calgary, TX, CanadaHQ recorded Nov 6, 2026	5,001-10,000	2,730 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
5	SAN Antonio Internacional	Exact match	Comuna 1, ArgentinaHQ recorded Nov 6, 2026	1,001-5,000	2,324 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
6	Redpath Mining	Exact match	North Bay, ON, CanadaHQ recorded Nov 6, 2026	5,001-10,000	2,307 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
7	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
8	Byrnecut	Exact match	Perth Airport, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,137 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
9	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
10	Toniolo, Busnello SA	Exact match	Porto Alegre, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,370 contacts →
	Exact match “A Toniolo, Busnello S.A.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	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
12	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
13	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
14	Master Drilling Group LTD	Exact match	Fochville, South AfricaHQ recorded Nov 6, 2026	1,001-5,000	1,036 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
15	Weeks Marine, INC	Exact match	Cranford, NJ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	898 contacts →
	Exact match “Founded in 1919, Weeks Marine, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Hillcon	Exact match	Jakarta Timur, IndonesiaHQ recorded Nov 6, 2026	5,001-10,000	805 contacts →
	Exact match “Hillcon was founded in 1995.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Ghella	Exact match	Rome, ItalyHQ recorded Nov 6, 2026	5,001-10,000	761 contacts →
	Exact match “Founded in 1894, Ghella is a major Italian global force recognized for its excellence in the construction of large-scale public infrastructure and expertise in the use of Tunnel…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	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
19	Murray & Roberts Cementation	Exact match	Bedfordview, South AfricaHQ recorded Nov 6, 2026	n/a	726 contacts →
	Exact match “Follow Cementation Africa here: https://lnkd.in/dhjab8Ss” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	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
21	Construtora Vale Verde S A	Exact match	Itabira, BrazilHQ recorded Nov 6, 2026	1,001-5,000	678 contacts →
	Exact match “A Construtora Vale Verde é uma empresa inovadora que concentra a sua expertise na atuação em soluções para construção civil pesada com serviços de dragagem convencional e…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	PT Sinar Terang Mandiri, TBK	Exact match	Manado, IndonesiaHQ recorded Nov 6, 2026	1,001-5,000	605 contacts →
	Exact match “PT Sinar Terang Mandiri, Tbk is a company that specializes in heavy equipment contracting, mining and civil construction projects as well as stone crushing and pavement production.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Infrasource, A Quanta Services Company	Exact match	King Of Prussia, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	575 contacts →
	Exact match “As one of the nations largest underground specialty contractors, InfraSource has over employees strategically positioned across more than 20 operating centers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Constructora Gardilcic	Exact match	Santiago, ChileHQ recorded Nov 6, 2026	1,001-5,000	531 contacts →
	Exact match “Sitio web Gardilcic” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	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

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 “specialty 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 8,189 specialty drilling contractors worldwide

See the full list, filter by size, metro and specialty, and access 32,167 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Specialty drilling contractors worldwide at a glance

As of Nov 6, 2026

20.0%Verified-email coverage

19.7Average contacts per company

11-50Median size (employees)

0.7%Largest-city concentration · Houston

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,610

11-50

3,047

51-200

1,574

201-500

525

501-1,000

149

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 specialty drilling contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “specialty 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 32,167 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.

Specialty drilling contractors by location

36 lists · largest first

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

How many specialty drilling contractors are there worldwide?

RevenueBase identified 8,189 company matches for specialty 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?

China Harbour Engineering Co. LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most specialty drilling contractors?

The United States leads with 1,883 companies, followed by Canada (555) and Brazil (430). Every specialty drilling contractors list by country and city is linked on this page.

Which city has the most specialty drilling contractors?

Houston leads with 57 company records, followed by Sao Paulo (55) and Ankara (45).

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 32,167 professional contacts with verified work emails tracked across these 8,189 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.