Company lists · Data refreshed October 2026

Top 25 Completion equipment manufacturers based in Houston, United States

RevenueBase identified 43 company matches for completion equipment manufacturers associated with Houston, United States as of October 2026 and tracks 5,686 professional contacts across them, including 1,186 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for completion equipment manufacturers associated with Houston, United States, 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 10, 2026.

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 10, 2026 How this list was built
43Companies
5,686Contacts tracked
1,186Verified emails
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The 25 largest completion equipment manufacturers based in Houston, United States

Ranked by team size
Top 25 of 43 company matches for completion equipment manufacturers based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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 10, 20265,001-10,0001,652 contacts →

Exact match

“Oil States International, Inc.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Oct 10, 20261,001-5,000802 contacts →

Exact match

“Cactus designs, manufactures, sells and rents a range of highly-engineered wellheads and pressure control equipment.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Oct 10, 20261,001-5,000742 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 · Oct 10, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Oct 10, 20261,001-5,000627 contacts →

Exact match

“Worldwide Oilfield Machine (WOM) is a multinational equipment manufacturer specializing in solutions for drilling, testing, production and intervention operations.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Oct 10, 2026201-500286 contacts →

Exact match

“Greene’s Energy Group offers a range of support services and products to the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Oct 10, 20261,001-5,000255 contacts →

Exact match

“Founded in 1947, Varel Energy Solutions is one of the world’s largest independent manufacturer and suppliers of downhole drilling and completions products to the energy sector.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Oct 10, 2026501-1,000220 contacts →

Exact match

“A leader in wellhead, pressure control, and production tree (Christmas Tree) equipment and service solutions, Vault PC also supports a top-tier completions division, supporting…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Oct 10, 2026201-500160 contacts →

Exact match

“The WellBoss Company, wholly owned by SBO AG, designs and manufactures the industry's most reliable well completion technology, delivering unrivaled, data-driven performance and…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202651-200158 contacts →

Exact match

“Deepsea Technologies, Inc.(DTI) Engineers and Manufactures a wide range of products and equipment used in subsea oil & gas field development projects.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202651-200137 contacts →

Exact match

“Since 1989 WWT International (WWT) has been developing unique products to help operators reach farther in drilling, completion and intervention worldwide.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202651-20056 contacts →

Exact match

“Control Flow Inc.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202651-20053 contacts →

Exact match

“Atlas Pressure Control delivers wellhead and production systems, and field services designed to maximize uptime and reduce operational risk.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202651-20039 contacts →

Exact match

“C-Automation, Inc, based out of Houston, Texas, goes beyond the industry standards in making exceptional products for subsea and surface area projects.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202611-5038 contacts →

Exact match

“At Wellmatics, we provide highly-efficient, reliable, and cost-effective customized solutions to enhance completion operations at the wellsite and improve customers’ bottom line.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202611-5033 contacts →

Exact match

“Safoco is an oil field equipment manufacturer that specializes in actuators and safety valves.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202611-5033 contacts →

Exact match

“Oilfield Service Professionals, Inc.(OSP) is a top tier technology provider for all Products & Services related to Well Construction, Completions, Downhole Intervention Systems…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202611-5024 contacts →

Exact match

“BOP Products LLC is your source for well-control equipment based out of Houston, Texas, United States.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202611-5022 contacts →

Exact match

“Frontier is an engineering-based, manufacturing team of industry veterans specializing in drilling, completion, and production technologies.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Oct 10, 2026501-1,00017 contacts →

Exact match

“INTEGRATED® Equipment, Inc, a OEM based In Houston, Texas, Designs, Manufactures and Distributes Equipment and Elastomers used in the drilling and production of oil and gas…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202651-20017 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202611-5012 contacts →

Exact match

“Detail Design, Inc.(DDI) specializes in the design and fabrication of oilfield equipment.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202611-5011 contacts →

Exact match

“Downhole Innovations LLC specializes in downhole tool engineering, design, testing, and manufacturing.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202611-507 contacts →

Exact match

“The Subsea Company is passionate about developing and improving solutions for reliability in any offshore environment.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Oct 10, 2026201-5006 contacts →

Exact match

“PangTong Wellhead USA Inc.(PTWUSA) is a leading provider of wellhead equipment and equipment services to the petroleum industry leaders worldwide, we specialize in design…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Oct 10, 202611-505 contacts →

Exact match

“Since 1983, we have been setting the global standard in innovative equipment for downhole tool service and testing.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase

Showing 25 of 43 completion equipment manufacturers based in Houston, United States

See the full list, filter by size, metro and specialty, and access 1,186 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Completion equipment manufacturers based in Houston, United States at a glance

As of Oct 10, 2026
20.9%Verified-email coverage
132.2Average contacts per company
11-50Median size (employees)
Oct 10, 2026Page data refreshed

Companies by employee count

1-10
5
11-50
17
51-200
11
201-500
3
501-1,000
2
1,001-5,000
4
5,001-10,000
1

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 43 companies.

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.
What qualifies
Company records associated with Houston, United States whose business descriptions match “completion equipment manufacturers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 1,186 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 10, 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.

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 “completion equipment manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many completion equipment manufacturers are there based in Houston, United States?

RevenueBase identified 43 company matches for completion equipment manufacturers associated with Houston, United States 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?

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

Which city in the United States has the most completion equipment manufacturers?

Houston leads the United States with 43 company records, followed by Oklahoma City (9) and Midland (5).

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 1,186 professional contacts with verified work emails tracked across these 43 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 10, 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.