Company lists · Data refreshed September 2026

Top 25 Platform topsides installation companies based in the United States

Name: Platform topsides installation companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 171 companies tracked

RevenueBase identified 171 platform topsides installation companies headquartered in the United States as of September 2026 and tracks 31,450 professional contacts across them, including 7,629 with verified work emails. Houston is the largest hub.

This list covers platform topsides installation companies headquartered in the United States, 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 29, 2026.

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 29, 2026 86% judged on-target in blind review

171Companies

31,450Contacts tracked

7,629Verified emails

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The 25 largest platform topsides installation companies based in the United States

Ranked by team size

Top 25 of 171 platform topsides installation companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to platform topsides installation 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	Mcdermott International, LTD	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	10001+	20,135 contacts →
	Indirect evidence “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Source: RevenueBase Database · checked Sep 29, 2026
2	Audubon Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,488 contacts →
	Indirect evidence “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Source: RevenueBase Database · checked Sep 29, 2026
3	Modec International INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	685 contacts →
	Partial evidence “MODEC is a general contractor specializing in engineering, procurement, construction and installation of floating production systems including Floating Production Storage and…” Source: RevenueBase Database · checked Sep 29, 2026
4	Dynamic Industries, INC	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 29, 2026	1,001-5,000	567 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
5	Matrix Service	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 29, 2026	1,001-5,000	492 contacts →
	Indirect evidence “Matrix Service is a subsidiary of Matrix Service Company (NASDAQ: MTRX).” Source: RevenueBase Database · checked Sep 29, 2026
6	Performance Energy Services, LLC	Indirect evidence	Houma, LA, United StatesHQ checked Sep 29, 2026	501-1,000	305 contacts →
	Indirect evidence “Performance Energy Services, a Danos company, was formed in to deliver safe, client-focused support to the onshore and offshore energy markets.” Source: RevenueBase Database · checked Sep 29, 2026
7	B&e Resources, LLC	Indirect evidence	Beaumont, TX, United StatesHQ checked Sep 29, 2026	501-1,000	286 contacts →
	Indirect evidence “B&E Resources is an oil field service company specializing in industrial construction and custom fabrication.” Source: RevenueBase Database · checked Sep 29, 2026
8	Offshore Inland Marine & Oilfield Services, INC	Indirect evidence	Pensacola, FL, United StatesHQ checked Sep 29, 2026	51-200	266 contacts →
	Indirect evidence “Offshore Inland Marine & Oilfield Services, Inc.(OIMO) corporate headquarters in Pensacola,FL provides a full range of Drilling Rig services and construction support activities…” Source: RevenueBase Database · checked Sep 29, 2026
9	Gulfspan Industrial LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	251 contacts →
	Indirect evidence “Gulfspan Industrial, LLC is a mechanical construction and industrial services company that specializes in performing turnarounds, capital projects, and maintenance.” Source: RevenueBase Database · checked Sep 29, 2026
10	Irwin Industries	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 29, 2026	501-1,000	226 contacts →
	Indirect evidence “Irwin Industries is one of the nation's leading industrial construction and maintenance service providers, serving the onshore and offshore oil & gas, petrochemical, refining…” Source: RevenueBase Database · checked Sep 29, 2026
11	Gulf Island	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	501-1,000	193 contacts →
	Indirect evidence “Gulf Island is a leading fabricator of complex steel structures and modules and provider of specialty services, including project management, hookup, commissioning, repair…” Source: RevenueBase Database · checked Sep 29, 2026
12	Zentech Incorporated	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	181 contacts →
	Indirect evidence “Zentech, Inc, an engineering consulting and software development company, headquartered in Houston, TX, is comprised of experienced professionals specializing in providing…” Source: RevenueBase Database · checked Sep 29, 2026
13	Deepsea Technologies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	166 contacts →
	Indirect evidence “Deepsea Technologies, Inc.(DTI) Engineers and Manufactures a wide range of products and equipment used in subsea oil & gas field development projects.” Source: RevenueBase Database · checked Sep 29, 2026
14	Loadmaster Industries	Indirect evidence	Broussard, LA, United StatesHQ checked Sep 29, 2026	51-200	146 contacts →
	Indirect evidence “Loadmaster Industries is a diversified manufacturing, engineering, design, and field services company with 30 years of experience in the global energy and industrial markets.” Source: RevenueBase Database · checked Sep 29, 2026
15	Taurus Industrial Group, LLC	Indirect evidence	Deer Park, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	142 contacts →
	Indirect evidence “Based in Houston, Taurus Industrial Group (Taurus) is a leading, integrated and industry diversified technical services company offering end-to-end services across multiple…” Source: RevenueBase Database · checked Sep 29, 2026
16	PLC Construction, INC	Indirect evidence	Liberty, TX, United StatesHQ checked Sep 29, 2026	201-500	140 contacts →
	Indirect evidence “PLC offers turnkey construction and engineering solutions for the upstream and midstream oil and gas market.” Source: RevenueBase Database · checked Sep 29, 2026
17	Petrolog Group	Indirect evidence	Houston, United StatesHQ checked Sep 29, 2026	501-1,000	131 contacts →
	Indirect evidence “Petrolog brings energy to the world as an integrated provider of solutions for the entire oil and gas lifecycle.” Source: RevenueBase Database · checked Sep 29, 2026
18	Perc Engineering	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	124 contacts →
	Indirect evidence “PERC Engineering is a full-service engineering & project management firm in the oil & gas energy sector.” Source: RevenueBase Database · checked Sep 29, 2026
19	Bisso Marine	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	118 contacts →
	Indirect evidence “BISSO MARINE is a subsea & offshore midstream infrastructure contractor that has been providing unsurpassed service and quality to the marine and energy industries since 1890.” Source: RevenueBase Database · checked Sep 29, 2026
20	Bluefin Field Services	Indirect evidence	Lafayette, LA, United StatesHQ checked Sep 29, 2026	51-200	111 contacts →
	Indirect evidence “BlueFin, a 100% employee-owned, GATE Energy company, is the field services arm of GATE Energy.” Source: RevenueBase Database · checked Sep 29, 2026
21	Dsds Deep SEA Development Services, INC - Dsds	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	101 contacts →
	Indirect evidence “Deep Sea Development Services Inc.(DSDS) is a Houston-based service company focused on subsea and deepwater development projects The company was formed in 1996 to meet the need…” Source: RevenueBase Database · checked Sep 29, 2026
22	Gastech Engineering LLC	Indirect evidence	Sapulpa, OK, United StatesHQ checked Sep 29, 2026	51-200	90 contacts →
	Indirect evidence “GasTech has been dedicated to helping energy clients around the globe achieve their goals for more than 30 years; one client at a time, one project at a time, one goal at a time.” Source: RevenueBase Database · checked Sep 29, 2026
23	Fluid Crane & Construction	Indirect evidence	New Iberia, LA, United StatesHQ checked Sep 29, 2026	51-200	73 contacts →
	Indirect evidence “Fluid Crane & Construction is a construction company based out of 5711 Hwy 90 W, New Iberia, Louisiana, United States.” Source: RevenueBase Database · checked Sep 29, 2026
24	Jamestown Metal Marine Sales, INC	Indirect evidence	Boca Raton, FL, United StatesHQ checked Sep 29, 2026	201-500	47 contacts →
	Indirect evidence “Our company founder, the late Edward W.” Source: RevenueBase Database · checked Sep 29, 2026
25	NEW Industries, INC	Indirect evidence	Morgan City, LA, United StatesHQ checked Sep 29, 2026	51-200	44 contacts →
	Indirect evidence “New Industries, was established in 1986 to provide quality, safe and on time steel fabrication services to the offshore oil and gas and marine industries.” Source: RevenueBase Database · checked Sep 29, 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: platform topsides installation 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 platform topsides installation companies.
Partial evidence: Its own public description names part of platform topsides installation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name platform topsides installation 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 171 platform topsides installation companies based in the United States

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Platform topsides installation companies based in the United States at a glance

As of Sep 29, 2026

24.3%Verified-email coverage

183.9Average contacts per company

11-50Median size (employees)

33.9%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 171 companies.

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 platform topsides installation 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “platform topsides installation 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 platform topsides installation 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 platform topsides installation companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 7,629 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 29, 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.

Platform topsides installation companies by metro

Platform topsides installation companies in Houston58

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 platform topsides installation 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 platform topsides installation companies are there based in the United States?

RevenueBase identified 171 platform topsides installation companies headquartered in the United States 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?

Mcdermott International, LTD, headquartered in Houston, tops this list with the largest team on record.

Which city has the most platform topsides installation companies?

Houston leads with 58 headquartered companies, followed by Katy (6) and New Iberia (4).

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 7,629 verified decision-maker contacts tracked across these 171 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 29, 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 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.