Company lists · Data refreshed November 2026

Top 25 Well completion engineering services worldwide

RevenueBase identified 2,144 company matches for well completion engineering services worldwide as of November 2026 and tracks 129,351 professional contacts across them, including 32,699 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for well completion engineering services 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 3, 2026. Country and city lists for well completion engineering services 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 3, 2026 How this list was built
2,144Companies
129,351Contacts tracked
32,699Verified emails
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The 25 largest well completion engineering services worldwide

Ranked by team size
Top 25 of 2,144 company matches for well completion engineering services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 3, 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, United StatesHQ recorded Nov 3, 202610001+58,281 contacts →

Exact match

“We collaborate and engineer solutions to maximize asset value for our customers.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
2Exact matchHouston, United StatesHQ recorded Nov 3, 20265,001-10,0006,924 contacts →

Exact match

“Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Nov 3, 20261,001-5,0002,991 contacts →

Exact match

“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 3, 202610001+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 3, 2026 · View company records in RevenueBase
5Exact matchMuscat, OmanHQ recorded Nov 3, 20261,001-5,0001,315 contacts →

Exact match

“Abraj Energy Services ("Abraj"), was founded in May 2006 and has taken major strides.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
6Exact matchHumble, TX, United StatesHQ recorded Nov 3, 20261,001-5,000912 contacts →

Exact match

“Innovex International, Inc (NYSE: INVX) is a Houston-based company established in 2024 following the merger of Dril-Quip, Inc and Innovex Downhole Solutions.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
7Exact matchAl-khobar, Saudi ArabiaHQ recorded Nov 3, 2026501-1,000882 contacts →

Exact match

“KBR-AMCDE has been successfully delivering engineering solutions in the Kingdom since 2011.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
8Exact matchLondon W2 2es, United KingdomHQ recorded Nov 3, 20261,001-5,000866 contacts →

Exact match

“Excellence Logging is an established energy services provider focused on optimizing well performance.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
9Exact matchOslo, NorwayHQ recorded Nov 3, 2026501-1,000837 contacts →

Exact match

“AGR – an Aqualis company – is a multidisciplinary consultancy, specialising in drilling & wells, subsurface, marine and subsea solutions, resourcing, technical safety and software…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
10Exact matchHouston, AL, United StatesHQ recorded Nov 3, 20261,001-5,000798 contacts →

Exact match

“Wellbore Integrity Solutions provides superior technologies and global service domain expertise, enabling our customers to enhance the full lifecycle of their wells by solving…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
11Exact matchFort Worth, TX, United StatesHQ recorded Nov 3, 20261,001-5,000776 contacts →

Exact match

“FTS International is one of the largest well completion companies in North America.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Nov 3, 20261,001-5,000773 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
13Exact matchEast Ahmadi, KuwaitHQ recorded Nov 3, 20261,001-5,000759 contacts →

Exact match

“KUWAIT DRILLING CO.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
14Exact matchPort Of Spain, Trinidad and TobagoHQ recorded Nov 3, 20261,001-5,000750 contacts →

Exact match

“Tucker Energy Services is a service oriented and customer focused organization providing high quality products and services to our clients in the energy industry.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
15Exact matchRøyneberg, NorwayHQ recorded Nov 3, 2026501-1,000659 contacts →

Exact match

“At Interwell our mission is clear; we are committed to solving the toughest well challenges with unmatched expertise and dedication.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
16Exact matchIndonesiaHQ recorded Nov 3, 2026501-1,000654 contacts →

Exact match

“PT Solusi Energy Nusantara (SENA) is affiliation of PGN Group, a reputable company which has a core business in natural gas distribution and transmission.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
17Exact matchKhobar, Saudi ArabiaHQ recorded Nov 3, 2026501-1,000600 contacts →

Exact match

“SLFE offers Engineering Services specialized in the Oil & Gas and Infrastructure industries.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
18Exact matchCoimbatore, IndiaHQ recorded Nov 3, 2026501-1,000562 contacts →

Exact match

“Kavin Engineering And Services Private Limited are leaders in Engineering & Services.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
19Exact matchEast Ahmadi, KuwaitHQ recorded Nov 3, 2026501-1,000528 contacts →

Exact match

“With thirty-five years of excellence in providing pioneering, world-class solutions and services, Safwan Petroleum Technologies Company (Spetco International Petroleum Company) is…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
20Exact matchVado Ligure, ItalyHQ recorded Nov 3, 2026201-500526 contacts →

Exact match

“Expertise was founded in 1984 in Genoa offering technical assistance services, then developing into an Engineering and Technical Services Company mainly operating in the energy…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
21Exact matchLauro De Freitas, BrazilHQ recorded Nov 3, 2026201-500485 contacts →

Exact match

“Uma empresa de engenharia de médio porte, que atua em vários segmentos tais como, projetos, gerenciamento, planejamento e assistência a montagens industriais, desde o projeto…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
22Exact matchBangalore, IndiaHQ recorded Nov 3, 2026201-500476 contacts →

Exact match

“Founded in 1991 as John Brown Engineering, later renamed to Kvaerner Process, the company is one of the pioneers in the engineering sector.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
23Exact matchSugar Land, TX, United StatesHQ recorded Nov 3, 2026501-1,000454 contacts →

Exact match

“GR Energy Services is a completion solutions company committed to lowering oil and gas company operational risk and total cost of operations.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
24Exact matchBangalore, IndiaHQ recorded Nov 3, 2026201-500446 contacts →

Exact match

“SIDVIN, a customer focused Engineering Service provider for Oil & Gas, Petrochemical & Process Industry has been delivering exacting solutions through its innovative, unleashing…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
25Exact matchLevallois-perret, FranceHQ recorded Nov 3, 2026501-1,000408 contacts →

Exact match

“NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase

Showing 25 of 2,144 well completion engineering services worldwide

See the full list, filter by size, metro and specialty, and access 32,699 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Well completion engineering services worldwide at a glance

As of Nov 3, 2026
25.3%Verified-email coverage
60.3Average contacts per company
11-50Median size (employees)
5.7%Largest-city concentration · Houston
Nov 3, 2026Page data refreshed

Companies by employee count

1-10
813
11-50
734
51-200
381
201-500
110
501-1,000
46
1,001-5,000
40
5,001-10,000
3
10001+
5

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 well completion engineering services are linked below.
What qualifies
Company records worldwide whose business descriptions match “well completion engineering services” 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 32,699 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 3, 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.

Well completion engineering services by location

17 lists · largest first

Every Well completion engineering services 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 “well completion engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many well completion engineering services are there worldwide?

RevenueBase identified 2,144 company matches for well completion engineering services 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?

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

Which country has the most well completion engineering services?

The United States leads with 477 companies, followed by the United Kingdom (157) and Canada (143). Every well completion engineering services list by country and city is linked on this page.

Which city has the most well completion engineering services?

Houston leads with 122 company records, followed by Calgary (102) and Tehran (44).

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 32,699 professional contacts with verified work emails tracked across these 2,144 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 3, 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.