Company lists · Data refreshed November 2026

Top 25 Subsea wellhead equipment and accessory suppliers worldwide

RevenueBase identified 833 company matches for subsea wellhead equipment and accessory suppliers worldwide as of November 2026 and tracks 25,510 professional contacts across them, including 6,493 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for subsea wellhead equipment and accessory suppliers worldwide, 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 November 2, 2026. Country and city lists for subsea wellhead equipment and accessory suppliers follow the table.

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 Nov 2, 2026 How this list was built
833Companies
25,510Contacts tracked
6,493Verified emails
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The 25 largest subsea wellhead equipment and accessory suppliers worldwide

Ranked by team size
Top 25 of 833 company matches for subsea wellhead equipment and accessory suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 2, 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 Nov 2, 20265,001-10,0001,652 contacts →

Exact match

“Oil States International, Inc.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Nov 2, 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 · Nov 2, 2026 · View company records in RevenueBase
3Exact matchHumble, TX, United StatesHQ recorded Nov 2, 20261,001-5,000843 contacts →

Exact match

“Innovex International, Inc (NYSE: INVX) is a Houston-based company established in 2024 following the merger of Dril-Quip, Inc and Innovex Downhole Solutions.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 2, 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 · Nov 2, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Nov 2, 20261,001-5,000776 contacts →

Exact match

“Wellbore Integrity Solutions provides superior technologies and global service domain expertise, enabling our customers to enhance the full lifecycle of their wells by solving…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
6Exact matchUsa, United KingdomHQ recorded Nov 2, 2026501-1,000700 contacts →

Exact match

“Delta Corporation specializes in the design and manufacture of API-compliant wellhead equipment and pressure control systems for both onshore and offshore oil and gas operations.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
7Exact matchEdmonton, AB, CanadaHQ recorded Nov 2, 20261,001-5,000656 contacts →

Exact match

“Founded in Edmonton, Alberta in 1962, Stream-Flo Industries Ltd.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Nov 2, 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 · Nov 2, 2026 · View company records in RevenueBase
9Exact matchKristiansand, NorwayHQ recorded Nov 2, 20261,001-5,000570 contacts →

Exact match

“October 2021.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
10Exact matchElefsina, GreeceHQ recorded Nov 2, 2026501-1,000523 contacts →

Exact match

“ASSO group is a technology driven company specialized to provide services and sub-sea equipment for underwater works in the marine and offshore field.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
11Exact matchNewcastle, OK, United StatesHQ recorded Nov 2, 2026501-1,000445 contacts →

Exact match

“Only Thru Tubing Solutions offers the specialized downhole equipment and services to deliver the results you need, right when you need them.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
12Exact matchTulsa, OK, United StatesHQ recorded Nov 2, 2026501-1,000426 contacts →

Exact match

“Summit ESP is a service of Halliburton that provides integrated Electric Submersible Pumping systems to enhance daily well production and total reservoir recovery.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
13Exact matchWallsend, United KingdomHQ recorded Nov 2, 202651-200327 contacts →

Exact match

“SMD is an advanced global designer and manufacturer of subsea remotely operated and autonomous power and control solutions.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
14Exact matchEsbjerg V, FranceHQ recorded Nov 2, 2026201-500307 contacts →

Exact match

“The MacArtney Group supplies products and engineering solutions to the worldwide Underwater Technology Market.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
15Exact matchDehradun, IndiaHQ recorded Nov 2, 2026201-500303 contacts →

Exact match

“Sara Sae Private Limited manufactures a diverse range of oilfield equipments thru its state of art manufacturing facilities located in Dehradun, India.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Nov 2, 2026201-500288 contacts →

Exact match

“Strength.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Nov 2, 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 · Nov 2, 2026 · View company records in RevenueBase
18Exact matchShah Alam, MalaysiaHQ recorded Nov 2, 2026501-1,000286 contacts →

Exact match

“Solar Alert Sdn Bhd is a global provider of wellhead equipment and Christmas trees, trusted by the Oil & Gas industry since 1995.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Nov 2, 2026201-500271 contacts →

Exact match

“Trendsetter is a global provider of specialized subsea solutions to the oil and gas industry's toughest challenges.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
20Exact matchTroisdorf, GermanyHQ recorded Nov 2, 2026201-500249 contacts →

Exact match

“Setting the Standard in Well Completion, Perforating, Seismic and Well Abandonment Technologies.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
21Exact matchUnited StatesHQ recorded Nov 2, 202610001+248 contacts →

Exact match

“FMC Technologies, Inc.(FMC Technologies) is a global provider of technology solutions for the energy industry.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
22Exact matchOslo, NorwayHQ recorded Nov 2, 2026201-500246 contacts →

Exact match

“AKOFS Offshore is a global provider of vessel based subsea well construction and intervention services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Nov 2, 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 · Nov 2, 2026 · View company records in RevenueBase
24Exact matchSingaporeHQ recorded Nov 2, 2026501-1,000188 contacts →

Exact match

“OMS Oilfield Services is leading oilfield services and manufacturing company.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
25Exact matchAlwar, IndiaHQ recorded Nov 2, 2026201-500188 contacts →

Exact match

“We would like to introduce WELLCARE OIL TOOLS PRIVATE LIMITED, an established manufacturer and supplier of a comprehensive range of Quality Downhole Drilling and Completion…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase

Showing 25 of 833 subsea wellhead equipment and accessory suppliers worldwide

See the full list, filter by size, metro and specialty, and access 6,493 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Subsea wellhead equipment and accessory suppliers worldwide at a glance

As of Nov 2, 2026
25.5%Verified-email coverage
30.6Average contacts per company
11-50Median size (employees)
8.8%Largest-city concentration · Houston
Nov 2, 2026Page data refreshed

Companies by employee count

1-10
251
11-50
306
51-200
177
201-500
62
501-1,000
16
1,001-5,000
15
5,001-10,000
2
10001+
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for subsea wellhead equipment and accessory suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “subsea wellhead equipment and accessory suppliers” 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. 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 6,493 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 November 2, 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.

Subsea wellhead equipment and accessory suppliers by location

8 lists · largest first

Every Subsea wellhead equipment and accessory suppliers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “subsea wellhead equipment and accessory suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many subsea wellhead equipment and accessory suppliers are there worldwide?

RevenueBase identified 833 company matches for subsea wellhead equipment and accessory suppliers worldwide as of November 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 country has the most subsea wellhead equipment and accessory suppliers?

The United States leads with 218 companies, followed by the United Kingdom (78) and the United Arab Emirates (46). Every subsea wellhead equipment and accessory suppliers list by country and city is linked on this page.

Which city has the most subsea wellhead equipment and accessory suppliers?

Houston leads with 73 company records, followed by Dubai (26) and Singapore (24).

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 6,493 professional contacts with verified work emails tracked across these 833 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 November 2, 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.