Company lists · Data refreshed September 2026
Top 25 Subsea wellhead systems based in the United States
RevenueBase identified 125 subsea wellhead systems headquartered in the United States as of September 2026 and tracks 18,016 professional contacts across them, including 4,609 with verified work emails. Houston is the largest hub.
This list covers subsea wellhead systems 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 22, 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.
The 25 largest subsea wellhead systems based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,466 contacts → | ||||
Indirect evidence “Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,215 contacts → | ||||
Indirect evidence “Oil States International, Inc.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 744 contacts → | ||||
Indirect evidence “Wellbore Integrity Solutions provides superior technologies and global service domain expertise, enabling our customers to enhance the full lifecycle of their wells by solving…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 703 contacts → | ||||
Partial evidence “Cactus designs, manufactures, sells and rents a range of highly-engineered wellheads and pressure control equipment.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 635 contacts → | ||||
Indirect evidence “Worldwide Oilfield Machine (WOM) is a multinational equipment manufacturer specializing in solutions for drilling, testing, production and intervention operations.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 432 contacts → | ||||
Partial evidence “Summit ESP is a service of Halliburton that provides integrated Electric Submersible Pumping systems to enhance daily well production and total reservoir recovery.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 259 contacts → | ||||
Partial evidence “Trendsetter is a global provider of specialized subsea solutions to the oil and gas industry's toughest challenges.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 168 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 166 contacts → | ||||
Partial 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 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 154 contacts → | ||||
Indirect evidence “Downing is an American oilfield solutions provider specializing in pressure-control technologies.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 115 contacts → | ||||
Indirect evidence “Owen Oil Tools, a division of Core Laboratories, is a global leader in downhole completion, perforating, and well abandonment solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 101 contacts → | ||||
Partial 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 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 74 contacts → | ||||
Partial evidence “OES has established itself as a leader in the subsea hydraulic controls sector of the the Oil & Gas industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 70 contacts → | ||||
Indirect evidence “Peak Completions is a leading oil and gas down hole technology provider that offers in-house engineering, manufacturing, and dedicated service to operators around the globe.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 65 contacts → | ||||
Indirect evidence “D&L Oil Tools designs, manufactures, and assembles downhole equipment for customers in both domestic and international markets.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 57 contacts → | ||||
Partial evidence “Koil Energy is a leading energy services company offering subsea equipment and support services to the world’s energy and offshore industries.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 55 contacts → | ||||
Indirect evidence “Downhole Technology Experts, Custom-Engineered Completion and Production Solutions PetroQuip Energy Services designs and manufactures completion and production technologies for…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 55 contacts → | ||||
Indirect evidence “Control Flow Inc.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 54 contacts → | ||||
Strong evidence “Atlas Pressure Control delivers wellhead and production systems, and field services designed to maximize uptime and reduce operational risk.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 45 contacts → | ||||
Indirect evidence “AXON Energy Services is a trusted global provider of pressure control equipment, spare and aftermarket parts, and expert repair and remanufacturing services for land, offshore and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 42 contacts → | ||||
Partial evidence “Centurion Subsea Services can provide customers with a fully-integrated service, designed to support the needs of the major oil operators and service companies in complex subsea…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 42 contacts → | ||||
Strong evidence “BBOS designs and manufactures quality Wellhead Systems and Gate Valves to API 6A, API Q1 and ISO 9001.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 38 contacts → | ||||
Indirect evidence “At Wellmatics, we provide highly-efficient, reliable, and cost-effective customized solutions to enhance completion operations at the wellsite and improve customers’ bottom line.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 38 contacts → | ||||
Partial evidence “C-Automation, Inc, based out of Houston, Texas, goes beyond the industry standards in making exceptional products for subsea and surface area projects.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 38 contacts → | ||||
Indirect evidence “ABCO designs and manufactures quality, cost effective, safe and efficient offshore energy solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
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: subsea wellhead systems. 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 subsea wellhead systems.
- Partial evidence
- Its own public description names part of subsea wellhead systems, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name subsea wellhead systems. 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 125 subsea wellhead systems based in the United States
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Subsea wellhead systems based in the United States at a glance
As of Sep 22, 2026Companies by employee count
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 125 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 subsea wellhead systems, 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 “subsea wellhead systems”. 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 subsea wellhead systems), 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 subsea wellhead systems, 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, 4,609 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 22, 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.
Subsea wellhead systems by metro
- Subsea wellhead systems in Houston48
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 subsea wellhead systems, 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 subsea wellhead systems are there based in the United States?
RevenueBase identified 125 subsea wellhead systems 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?
EXPRO, headquartered in Houston, tops this list with the largest team on record.
Which city has the most subsea wellhead systems?
Houston leads with 48 headquartered companies, followed by Katy (5) and Lafayette (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 4,609 verified decision-maker contacts tracked across these 125 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 22, 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.
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