Company lists · Data refreshed September 2026

Top 25 Subsea flow assurance companies based in the Netherlands

RevenueBase identified 48 subsea flow assurance companies headquartered in the Netherlands as of September 2026 and tracks 1,642 professional contacts across them, including 572 with verified work emails. Rotterdam is the largest hub.

This list covers subsea flow assurance companies headquartered in the Netherlands, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review
48Companies
1,642Contacts tracked
572Verified emails
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The 25 largest subsea flow assurance companies based in the Netherlands

Ranked by team size
Top 25 of 48 subsea flow assurance companies based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to subsea flow assurance 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDordrecht, NetherlandsHQ checked Sep 22, 2026201-500364 contacts →

Partial evidence

“N-Sea is an end-to-end subsea services provider.”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceBergen Op Zoom, NetherlandsHQ checked Sep 22, 2026201-500344 contacts →

Partial evidence

“Beginning life in 1957 as the Vriens Diving Company, DCN has steadily grown in its niche market to become a significant global provider of engineered subsea solutions to the…”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceSchiedam, NetherlandsHQ checked Sep 22, 2026201-500272 contacts →

Indirect evidence

“GustoMSC, part of NOV, provides offshore designs, reliable equipment and engineering solutions.”

Source: RevenueBase Database · checked Sep 22, 2026
4Partial evidenceDen Helder, NetherlandsHQ checked Sep 22, 202651-200160 contacts →

Partial evidence

“Bluestream is now part of OEG's subsea service division.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceUtrecht, NetherlandsHQ checked Sep 22, 2026n/a79 contacts →

Indirect evidence

“Stork, sinds april 2024 onderdeel van Bilfinger, levert diensten op het terrein van constructie, onderhoud, modificaties en borging van de integriteit van assets, voor klanten in…”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceRotterdam, NetherlandsHQ checked Sep 22, 202651-20078 contacts →

Indirect evidence

“KCI Offshore Engineering has been providing design, engineering, and consultancy services to the offshore industry for over 40 years.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceDen Helder, NetherlandsHQ checked Sep 22, 202651-20057 contacts →

Indirect evidence

“History Multimetaal was established in 1973 to provide construction design, prefabrication, in-house testing and certification, offshore support services to the oil and gas…”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceWoerden, NetherlandsHQ checked Sep 22, 202611-5037 contacts →

Indirect evidence

“Versatec Energy, a Bureau Veritas company, is a global technical consultancy that serves the Oil & Gas, Energy, and Marine Industries.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceSchiedam, NetherlandsHQ checked Sep 22, 202611-5036 contacts →

Indirect evidence

“Enersea is a true offshore engineering specialist, offering consultancy, structural design services and production systems design.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceRotterdam, NetherlandsHQ checked Sep 22, 202611-5030 contacts →

Indirect evidence

“Offshore Independents is a leading offshore engineering and consultancy firm.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceRijswijk Zh, NetherlandsHQ checked Sep 22, 202611-5029 contacts →

Indirect evidence

“Since 1989, DRG has been active as a leading Engineering Consulting firm providing technical services across all aspects of pipeline analysis and design.”

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceZoeterwoude, NetherlandsHQ checked Sep 22, 202611-5025 contacts →

Partial evidence

“Your Subsea, Upstream and Topsides compact valve actuation partner to provide essential design support to minimize space, weight and cost at new and existing facilities.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceRotterdam, NetherlandsHQ checked Sep 22, 202611-5016 contacts →

Indirect evidence

“Mocean is a fully independent marine engineering consultancy company.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 22, 202651-20015 contacts →

Indirect evidence

“At MCS we are an unique organisation dedicated to supporting our clients and ready to answer any questions you may have.”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceCapelle Aan Den Ijssel, NetherlandsHQ checked Sep 22, 202611-5012 contacts →

Partial evidence

“TRESIOS is an international project management and construction company specialized in subsea construction and marine services.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceDelft, NetherlandsHQ checked Sep 22, 20261-108 contacts →

Indirect evidence

“IRM Systems is a Pipeline Integrity Consultancy, Management & Services company providing global specialist support throughout the entire lifetime of pipeline systems, onshore &…”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceEc, NetherlandsHQ checked Sep 22, 202651-2007 contacts →

Indirect evidence

“Airborne Oil & Gas is the world’s first and leading manufacturer of fully bonded, Thermoplastic Composite Pipe.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceThe Hague, NetherlandsHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“LENKE is a multidisciplinary engineering and industrial supply company with broad expertise across piping, mechanical, structural, electrical, instrumentation, and process…”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceKlundert, NetherlandsHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“Extensive Expertise and Unparalleled Efficiency.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceThe Hague, NetherlandsHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“r+k Consulting Engineers specializes in structural design and integrity analysis for on shore, near shore and offshore transport pipelines.”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceRotterdam, NetherlandsHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

“H2Offshore Engineering is an engineering company serving the offshore energy industry.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceRotterdam, NetherlandsHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

“WolfWindWorks is an engineering consultancy firm.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceZoetermeer, NetherlandsHQ checked Sep 22, 202611-502 contacts →

Indirect evidence

“EMIS provides proficient engineering capability to the oil and gas industry, offering innovative solutions and technical excellence to its customers in all facets of project…”

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidenceSchiedam, NetherlandsHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

“Contax Technical Support started in 1998 as a welding company and provision technical support in the oil, gas, offshore and maritime industry and has be specialized in providing…”

Source: RevenueBase Database · checked Sep 22, 2026
25Partial evidenceDen Helder, NetherlandsHQ checked Sep 22, 202611-501 contacts →

Partial evidence

“An international One-Stop-Shop subsea service provider to the Offshore Energy sector, specialising in onshore diving.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 48 subsea flow assurance companies based in the Netherlands

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Subsea flow assurance companies based in the Netherlands at a glance

As of Sep 22, 2026
34.8%Verified-email coverage
34.2Average contacts per company
1-10Median size (employees)
8.3%Largest-city concentration · Rotterdam
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
11
51-200
5
201-500
4
10001+
1

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 48 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 flow assurance 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 Netherlands whose own description of what they do matches “subsea flow assurance 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 subsea flow assurance 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 subsea flow assurance companies, and records with no verified work email. Companies headquartered outside Netherlands 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, 572 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.

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 flow assurance 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 subsea flow assurance companies are there based in the Netherlands?

RevenueBase identified 48 subsea flow assurance companies headquartered in the Netherlands 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?

N-Sea Group, headquartered in Jx, tops this list with the largest team on record.

Which city has the most subsea flow assurance companies?

Rotterdam leads with 4 headquartered companies, followed by Amsterdam (2) and Jd (2).

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 572 verified decision-maker contacts tracked across these 48 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.