Company lists · Data refreshed October 2026

Top 25 Offshore oil and gas service providers based in the United States

RevenueBase identified 1,244 company matches for offshore oil and gas service providers associated with the United States as of October 2026 and tracks 93,524 professional contacts across them, including 20,409 with verified work emails. Houston is the largest hub.

This list covers company matches for offshore oil and gas service providers associated with the 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 19, 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 19, 2026 How this list was built
1,244Companies
93,524Contacts tracked
20,409Verified emails
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The 25 largest offshore oil and gas service providers based in the United States

Ranked by team size
Top 25 of 1,244 company matches for offshore oil and gas service providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 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 19, 20265,001-10,0006,721 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 · Oct 19, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Oct 19, 202610001+6,266 contacts →

Exact match

“Nabors Industries is a leading provider of advanced technology for the energy industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Oct 19, 20265,001-10,0005,939 contacts →

Exact match

“Noble is a leading offshore drilling contractor for the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
4Exact matchHouston, United StatesHQ recorded Oct 19, 20265,001-10,0003,884 contacts →

Exact match

“National Energy Services Reunited Corp.(NESR) was founded in 2017 as one of the largest national oilfield services providers in the MENA and Asia Pacific regions and was the first…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Oct 19, 20265,001-10,0003,497 contacts →

Exact match

“Tidewater Inc.(Tidewater) is the owner and operator of the world’s largest Offshore Support Vessel (OSV) fleet.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Oct 19, 20265,001-10,0003,263 contacts →

Exact match

“We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Oct 19, 20261,001-5,0002,076 contacts →

Exact match

“For oil & gas exploration and production companies worldwide, Superior Energy Services is an oilfield products and services company with global reach, financial stability and…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Oct 19, 20261,001-5,0001,771 contacts →

Exact match

“Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Oct 19, 20265,001-10,0001,652 contacts →

Exact match

“Oil States International, Inc.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
10Exact matchCovington, LA, United StatesHQ recorded Oct 19, 20261,001-5,0001,476 contacts →

Exact match

“Hornbeck Offshore Services, Inc.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Oct 19, 202610001+1,445 contacts →

Exact match

“Founded in 1919, Halliburton is one of the world’s largest providers of products and services to the energy industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Oct 19, 20261,001-5,0001,375 contacts →

Exact match

“Headquartered in Houston, Hercules Offshore, Inc.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
13Exact matchThe Woodlands, TX, United StatesHQ recorded Oct 19, 20261,001-5,0001,329 contacts →

Exact match

“Cudd offers a broad range of technical and specialized oilfield services to companies engaged in the exploration and production of oil and natural gas worldwide.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Oct 19, 20261,001-5,0001,145 contacts →

Exact match

“Stewart & Stevenson is a leading designer, manufacturer and provider of specialized equipment and aftermarket parts and service for the oil and gas and other industries that we…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Oct 19, 20261,001-5,000874 contacts →

Exact match

“KLX Energy Services provides more than 100 mission-critical oilfield services, tools, technologies and equipment to some of the industry’s leading operators.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
16Exact matchSan Antonio, TX, United StatesHQ recorded Oct 19, 20261,001-5,000814 contacts →

Exact match

“Pioneer Energy Services is now Patterson-UTI”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Oct 19, 2026201-500715 contacts →

Exact match

“MODEC is a general contractor specializing in engineering, procurement, construction and installation of floating production systems including Floating Production Storage and…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19Exact matchLafayette, LA, United StatesHQ recorded Oct 19, 2026501-1,000684 contacts →

Exact match

“Oceaneering International, Inc.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Oct 19, 2026501-1,000678 contacts →

Exact match

“Atwood Oceanics, Inc.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Oct 19, 2026501-1,000639 contacts →

Exact match

“Talos Energy responsibly develops offshore oil and gas resources essential to everyday life.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
23Exact matchNew Orleans, LA, United StatesHQ recorded Oct 19, 20261,001-5,000601 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Oct 19, 2026501-1,000588 contacts →

Exact match

“On April 15, 2021, Noble Corporation plc completed its acquisition of Pacific Drilling Company LLC.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
25Exact matchScott, LA, United StatesHQ recorded Oct 19, 20261,001-5,000580 contacts →

Exact match

“Improving efficiency and reducing costs, all while meeting safety requirements, is the challenge faced by every operator in the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase

Showing 25 of 1,244 offshore oil and gas service providers based in the United States

See the full list, filter by size, metro and specialty, and access 20,409 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offshore oil and gas service providers based in the United States at a glance

As of Oct 19, 2026
21.8%Verified-email coverage
75.2Average contacts per company
11-50Median size (employees)
26.4%Largest-city concentration · Houston
Oct 19, 2026Page data refreshed

Companies by employee count

1-10
363
11-50
402
51-200
281
201-500
97
501-1,000
41
1,001-5,000
42
5,001-10,000
11
10001+
6

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,244 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 the United States whose business descriptions match “offshore oil and gas service providers” 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 20,409 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 19, 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 “offshore oil and gas service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore oil and gas service providers are there based in the United States?

RevenueBase identified 1,244 company matches for offshore oil and gas service providers associated with the 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?

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

Which city has the most offshore oil and gas service providers?

Houston leads with 328 company records, followed by Midland (40) and Lafayette (36).

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 20,409 professional contacts with verified work emails tracked across these 1,244 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 19, 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.