Company lists · Data refreshed October 2026

Top 25 Horizontal drilling contractors worldwide

RevenueBase identified 2,743 company matches for horizontal drilling contractors worldwide as of October 2026 and tracks 62,368 professional contacts across them, including 12,849 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for horizontal 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 October 14, 2026. Country and city lists for horizontal 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 Oct 14, 2026 How this list was built
2,743Companies
62,368Contacts tracked
12,849Verified emails
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The 25 largest horizontal drilling contractors worldwide

Ranked by team size
Top 25 of 2,743 company matches for horizontal drilling contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 14, 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 14, 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 14, 2026 · View company records in RevenueBase
2Exact matchCalgary, AB, CanadaHQ recorded Oct 14, 20261,001-5,0002,277 contacts →

Exact match

“Ensign Energy Services Inc.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
3Exact matchComuna 1, ArgentinaHQ recorded Oct 14, 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 14, 2026 · View company records in RevenueBase
4Exact matchMoncton, NB, CanadaHQ recorded Oct 14, 20261,001-5,0001,518 contacts →

Exact match

“Major Drilling Group International Inc.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
5Exact matchPhoenix, AZ, United StatesHQ recorded Oct 14, 20265,001-10,0001,376 contacts →

Exact match

“NPL is a nationally recognized leader in energy infrastructure construction, with 50 years of experience.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
6Exact matchSouth Jakarta, IndonesiaHQ recorded Oct 14, 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 14, 2026 · View company records in RevenueBase
7Exact matchThe Woodlands, TX, United StatesHQ recorded Oct 14, 20261,001-5,0001,213 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 · Oct 14, 2026 · View company records in RevenueBase
8Exact matchAmsterdam, NetherlandsHQ recorded Oct 14, 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 14, 2026 · View company records in RevenueBase
9Exact matchUnited StatesHQ recorded Oct 14, 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 14, 2026 · View company records in RevenueBase
10Exact matchCalgary, AB, CanadaHQ recorded Oct 14, 2026501-1,000836 contacts →

Exact match

“Phoenix Technology Services delivers progressive directional drilling solutions to unconventional drilling markets around the world.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
11Exact matchUnited StatesHQ recorded Oct 14, 2026n/a568 contacts →

Exact match

“The flagship company of the group, Corrtech international Pvt Ltd (CIPL), was established in 1982 and has been engaged in the business of Pipeline Construction, Cathodic…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
12Exact matchKing Of Prussia, PA, United StatesHQ recorded Oct 14, 20261,001-5,000560 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 · Oct 14, 2026 · View company records in RevenueBase
13Exact matchAte, BelgiumHQ recorded Oct 14, 20261,001-5,000545 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 · Oct 14, 2026 · View company records in RevenueBase
14Exact matchWestmont, IL, United StatesHQ recorded Oct 14, 2026501-1,000491 contacts →

Exact match

“ENTACT is the partner of choice in solving our customer's most complex environmental remediation and geotechnical infrastructure challenges.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
15Exact matchPodenzano, ItalyHQ recorded Oct 14, 2026501-1,000464 contacts →

Exact match

“PETREVEN is a low impact Drilling Contractor (established in 1998 in Venezuela).”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
16Exact matchOklahoma City, OK, United StatesHQ recorded Oct 14, 20261,001-5,000458 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 · Oct 14, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Oct 14, 2026501-1,000391 contacts →

Exact match

“Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
18Exact matchConyers, GA, United StatesHQ recorded Oct 14, 20261,001-5,000378 contacts →

Exact match

“Since 1996 Southeast Connections, LLC is a contractor specializing in energy infrastructure serving the gas industry.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
19Exact matchEunice, LA, United StatesHQ recorded Oct 14, 20261,001-5,000376 contacts →

Exact match

“Our Mission: To be the premier provider for energy related construction services through a commitment to excellence in safety, production, and quality, with the resolve to…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
20Exact matchBrisbane, AustraliaHQ recorded Oct 14, 2026201-500372 contacts →

Exact match

“Welcome to Lucas!”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
21Exact matchVancouver, BC, CanadaHQ recorded Oct 14, 2026201-500358 contacts →

Exact match

“ENERGOLD DRILLING is a leading global drilling solutions company that services the mining, infrastructure, and geothermal sectors in the Americas, Africa, and Europe.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
22Exact matchGorinchem, NetherlandsHQ recorded Oct 14, 20261,001-5,000352 contacts →

Exact match

“Van Vulpen legt ondergrondse infrastructuur aan voor energie, water en data.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
23Exact matchWindsor, CO, United StatesHQ recorded Oct 14, 202651-200324 contacts →

Exact match

“Total Directional Services, LLC is a privately owned, managed and operated service company headquartered in Windsor, CO.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
24Exact matchTulsa, OK, United StatesHQ recorded Oct 14, 20261,001-5,000318 contacts →

Exact match

“The core philosophies and belief systems, which our company strives to deliver are all designed to keep our country on track to someday be energy independent.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
25Exact matchSherbrooke, QC, CanadaHQ recorded Oct 14, 2026201-500312 contacts →

Exact match

“FTE Drilling (Forages Technic-Eau Inc.) is one of the most specialized companies in the drilling industry.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase

Showing 25 of 2,743 horizontal drilling contractors worldwide

See the full list, filter by size, metro and specialty, and access 12,849 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Horizontal drilling contractors worldwide at a glance

As of Oct 14, 2026
20.6%Verified-email coverage
22.7Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · Houston
Oct 14, 2026Page data refreshed

Companies by employee count

1-10
895
11-50
1,020
51-200
542
201-500
170
501-1,000
54
1,001-5,000
43
5,001-10,000
3
10001+
2

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 horizontal drilling contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “horizontal 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 12,849 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 14, 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.

Horizontal drilling contractors by location

15 lists · largest first

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

How many horizontal drilling contractors are there worldwide?

RevenueBase identified 2,743 company matches for horizontal drilling contractors 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?

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

Which country has the most horizontal drilling contractors?

The United States leads with 1,028 companies, followed by Canada (254) and Germany (128). Every horizontal drilling contractors list by country and city is linked on this page.

Which city has the most horizontal drilling contractors?

Houston leads with 53 company records, followed by Calgary (45) and Midland (26).

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 12,849 professional contacts with verified work emails tracked across these 2,743 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 14, 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.