Company lists · Data refreshed September 2026

Top 25 Well construction companies worldwide

Name: Well construction companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 3,542 companies tracked

RevenueBase identified 3,542 well construction companies worldwide as of September 2026 and tracks 53,258 professional contacts across them, including 13,424 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers well construction 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 well construction 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

3,542Companies

53,258Contacts tracked

13,424Verified emails

0Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest well construction companies worldwide

Ranked by team size

Top 25 of 3,542 well construction companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to well construction 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	EXPRO	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	5,001-10,000	6,466 contacts →
	Indirect evidence “Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Source: RevenueBase Database · checked Sep 19, 2026
2	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
3	Michels Corporation	Partial evidence	Brownsville, WI, United StatesHQ checked Sep 19, 2026	10001+	2,339 contacts →
	Partial evidence “Established in 1959 in Brownsville, WI, Michels is an international leader in energy and infrastructure construction.” Source: RevenueBase Database · checked Sep 19, 2026
4	Patterson-Uti	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	10001+	2,317 contacts →
	Indirect 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
5	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
6	Construtora Ápia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	1,001-5,000	1,529 contacts →
	Indirect evidence “A Construtora Ápia está classificada entre as principais empresas de construção pesada do país.” Source: RevenueBase Database · checked Sep 19, 2026
7	HMH	Indirect evidence	Amsterdam, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,097 contacts →
	Indirect 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
8	Nine Energy Service	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	712 contacts →
	Indirect evidence “With a culture built on high performance and flawless execution, Nine Energy Service is a unique kind of oilfield services company, offering industry-shaping completion solutions…” Source: RevenueBase Database · checked Sep 19, 2026
9	Interwell	Partial evidence	Røyneberg, United KingdomHQ checked Sep 19, 2026	501-1,000	637 contacts →
	Partial evidence “At Interwell our mission is clear; we are committed to solving the toughest well challenges with unmatched expertise and dedication.” Source: RevenueBase Database · checked Sep 19, 2026
10	Walo Bertschinger	Partial evidence	Dietikon, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	572 contacts →
	Partial evidence “Construction is our passion, satisfied clients our goal – hence our focus on quality, precision and expertise.” Source: RevenueBase Database · checked Sep 19, 2026
11	Construtora Vale Verde S A	Indirect evidence	Itabira, BrazilHQ checked Sep 19, 2026	1,001-5,000	555 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
12	Foraco International SA	Indirect evidence	Marseille, FranceHQ checked Sep 19, 2026	1,001-5,000	458 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
13	Cactus Drilling CO	Indirect evidence	Oklahoma City, OK, United StatesHQ checked Sep 19, 2026	1,001-5,000	440 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
14	M.Roscoe Construction Engineer	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	1,001-5,000	435 contacts →
	Partial evidence “Founded in 1957, M.ROSCOE has consolidated itself in the civil construction market by operating in the foundation of the national industry.” Source: RevenueBase Database · checked Sep 19, 2026
15	Express Energy Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	501-1,000	379 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
16	Manelli Impresa SPA	Indirect evidence	Monopoli, ItalyHQ checked Sep 19, 2026	501-1,000	364 contacts →
	Indirect evidence “Manelli Impresa S.p.A.” Source: RevenueBase Database · checked Sep 19, 2026
17	LUCAS	Indirect evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	201-500	355 contacts →
	Indirect evidence “Welcome to Lucas!” Source: RevenueBase Database · checked Sep 19, 2026
18	Forage FTE Drilling	Indirect evidence	Sherbrooke, QC, CanadaHQ checked Sep 19, 2026	201-500	304 contacts →
	Indirect evidence “FTE Drilling (Forages Technic-Eau Inc.) is one of the most specialized companies in the drilling industry.” Source: RevenueBase Database · checked Sep 19, 2026
19	Thompson Construction Group	Partial evidence	Spruce Grove, AB, CanadaHQ checked Sep 19, 2026	1,001-5,000	298 contacts →
	Partial evidence “Thompson Construction Group is a leading Alberta-based construction firm specializing in heavy civil earthworks, underground utilities, vertical construction, and industrial…” Source: RevenueBase Database · checked Sep 19, 2026
20	Leam Drilling Services	Indirect evidence	New Iberia, LA, United StatesHQ checked Sep 19, 2026	501-1,000	291 contacts →
	Indirect evidence “LEAM Drilling Systems, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
21	Ripa & Associates	Partial evidence	Tampa, FL, United StatesHQ checked Sep 19, 2026	501-1,000	283 contacts →
	Partial evidence “RIPA & Associates is a highly experienced and successful privately-owned construction company that provides civil and utility construction services.” Source: RevenueBase Database · checked Sep 19, 2026
22	J.F. Shea Co., INC	Indirect evidence	Walnut, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	262 contacts →
	Indirect evidence “One of the oldest and largest privately held operations in the country, the J.F.” Source: RevenueBase Database · checked Sep 19, 2026
23	DCM Group INC	Partial evidence	Sherwood Park, AB, CanadaHQ checked Sep 19, 2026	501-1,000	258 contacts →
	Partial evidence “For over 70 years, DCM Group has been a vital supporter and construction partner of some of Canada’s most defining industries – oil & gas, petrochemicals, mining, power…” Source: RevenueBase Database · checked Sep 19, 2026
24	Knights Brown	Partial evidence	Ringwood, AustraliaHQ checked Sep 19, 2026	201-500	241 contacts →
	Partial evidence “We deliver civil engineering and construction projects with certainty, clarity and genuine collaboration across southern England, Wales and the UK's energy network.” Source: RevenueBase Database · checked Sep 19, 2026
25	Entrepose Group	Partial evidence	Colombes, FranceHQ checked Sep 19, 2026	1,001-5,000	240 contacts →
	Partial evidence “SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…” 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: well construction 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 well construction companies.
Partial evidence: Its own public description names part of well construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name well construction 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 3,542 well construction companies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 13,424 reachable decision-makers.

Free signup · no credit card

View the full list →

Well construction companies worldwide at a glance

As of Sep 19, 2026

25.2%Verified-email coverage

15.0Average contacts per company

11-50Median size (employees)

1.9%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,714

11-50

1,219

51-200

403

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 well construction 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: 14 countries, largest first: the United States, the United Kingdom, France, Germany, Brazil, Italy, Canada, Australia, Belgium, the Netherlands and 4 more. Country and city lists for well construction companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “well construction 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 well construction 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 well construction 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, 13,424 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.

Well construction companies by location

14 lists · largest first

Every Well construction companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 well construction 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 well construction companies are there worldwide?

RevenueBase identified 3,542 well construction 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?

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

Which country has the most well construction companies?

The United States leads with 1,507 companies, followed by the United Kingdom (553) and France (301). Every well construction companies list by country and city is linked on this page.

Which city has the most well construction companies?

London leads with 68 headquartered companies, followed by Houston (45) and Calgary (29).

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 13,424 verified decision-maker contacts tracked across these 3,542 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.

Ready to reach these companies? Verified emails and direct dials for all 3,542 well construction companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

Browse: Companies home · Lists by location · New lists

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.