Company lists · Data refreshed October 2026

Top 25 Offshore infrastructure contractors based in the United States

RevenueBase identified 847 company matches for offshore infrastructure contractors associated with the United States as of October 2026 and tracks 85,025 professional contacts across them, including 17,864 with verified work emails. Houston is the largest hub.

This list covers company matches for offshore infrastructure contractors 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
847Companies
85,025Contacts tracked
17,864Verified emails
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The 25 largest offshore infrastructure contractors based in the United States

Ranked by team size
Top 25 of 847 company matches for offshore infrastructure contractors 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, 202610001+21,087 contacts →

Exact match

“McDermott is a premier provider of engineering and construction solutions to the energy industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact matchHouston, TX, United StatesHQ recorded Oct 19, 20261,001-5,0001,652 contacts →

Exact match

“Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7Exact 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
8Exact 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
9Exact matchCranford, NJ, United StatesHQ recorded Oct 19, 20261,001-5,000863 contacts →

Exact match

“Founded in 1919, Weeks Marine, Inc.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
10Exact matchTulsa, OK, United StatesHQ recorded Oct 19, 20261,001-5,000809 contacts →

Exact match

“Matrix Service Company (Nasdaq: MTRX) is a leading specialty engineering and construction company whose commitment to safety, quality, and integrity has earned its subsidiaries a…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Oct 19, 2026n/a795 contacts →

Exact match

“Energo Engineering is a KBR Company that provides the full package of structural integrity management (SIM) and advanced structural engineering services for offshore floating and…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Oct 19, 202610001+724 contacts →

Exact match

“Primoris is a specialty energy infrastructure contractor serving the oil and gas and power industries with offerings that primarily include construction, maintenance and…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact matchGalliano, LA, United StatesHQ recorded Oct 19, 20261,001-5,000640 contacts →

Exact match

“Established in 1948 in Grand Isle, LA, GIS began as a modest company serving the commercial fishing industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
16Exact matchSeattle, WA, United StatesHQ recorded Oct 19, 2026501-1,000611 contacts →

Exact match

“Manson is one of the nation’s leading heavy civil marine construction and dredging companies.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17Exact 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
18Exact matchTulsa, OK, United StatesHQ recorded Oct 19, 20261,001-5,000518 contacts →

Exact match

“Matrix Service is a subsidiary of Matrix Service Company (NASDAQ: MTRX).”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19Exact matchVancouver, WA, United StatesHQ recorded Oct 19, 20261,001-5,000393 contacts →

Exact match

“Greenberry Industrial is an award-winning, full-service industrial contractor and fabricator serving high-tech, oil & gas, petrochemical, pulp & paper, power & energy, renewable…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20Exact matchEunice, LA, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
21Exact matchStamford, CT, United StatesHQ recorded Oct 19, 20261,001-5,000330 contacts →

Exact match

“Rocktree is a leading infrastructure and logistics service provider with over 1,500 employees in 13 offices worldwide.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
22Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 19, 20261,001-5,000322 contacts →

Exact match

“The GIS Industrial Engineering & Construction team offers clients a single point of contact to utilize our 19 strategically located facilities, employees, and 21 service lines.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
23Exact matchHouma, LA, United StatesHQ recorded Oct 19, 2026501-1,000307 contacts →

Exact match

“Performance Energy Services, a Danos company, was formed in to deliver safe, client-focused support to the onshore and offshore energy markets.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
24Exact matchBeaumont, TX, United StatesHQ recorded Oct 19, 2026501-1,000301 contacts →

Exact match

“B&E Resources is an oil field service company specializing in industrial construction and custom fabrication.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
25Exact matchCoraopolis, PA, United StatesHQ recorded Oct 19, 2026501-1,000290 contacts →

Exact match

“American Bridge is a legendary construction company whose projects include a significant proportion of the world’s large bridges, marine installations, and other complex…”

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

Showing 25 of 847 offshore infrastructure contractors based in the United States

See the full list, filter by size, metro and specialty, and access 17,864 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offshore infrastructure contractors based in the United States at a glance

As of Oct 19, 2026
21.0%Verified-email coverage
100.4Average contacts per company
11-50Median size (employees)
21.6%Largest-city concentration · Houston
Oct 19, 2026Page data refreshed

Companies by employee count

1-10
214
11-50
254
51-200
212
201-500
83
501-1,000
33
1,001-5,000
36
5,001-10,000
6
10001+
7

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 847 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 infrastructure 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. 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 17,864 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.

Offshore infrastructure contractors by metro

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 infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore infrastructure contractors are there based in the United States?

RevenueBase identified 847 company matches for offshore infrastructure contractors 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?

Mcdermott International, LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most offshore infrastructure contractors?

Houston leads with 183 company records, followed by Houma (17) and Broussard (15).

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 17,864 professional contacts with verified work emails tracked across these 847 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.