Company lists · Data refreshed September 2026

Top 25 Underwater intervention companies based in the Netherlands

RevenueBase identified 120 underwater intervention companies headquartered in the Netherlands as of September 2026 and tracks 9,251 professional contacts across them, including 2,963 with verified work emails. Rotterdam is the largest hub.

This list covers underwater intervention 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
120Companies
9,251Contacts tracked
2,963Verified emails
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The 25 largest underwater intervention companies based in the Netherlands

Ranked by team size
Top 25 of 120 underwater intervention 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 underwater intervention 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
1Indirect evidence3063 Nh, NetherlandsHQ checked Sep 22, 20265,001-10,0004,364 contacts →

Indirect evidence

“Van Oord is a leading international marine contractor focusing on dredging, infrastructure and offshore energy projects.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceLeiden, NetherlandsHQ checked Sep 22, 20261,001-5,0002,643 contacts →

Indirect evidence

“Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceDordrecht, NetherlandsHQ checked Sep 22, 2026201-500364 contacts →

Indirect evidence

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

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

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidencePoeldijk, NetherlandsHQ checked Sep 22, 2026201-500114 contacts →

Indirect evidence

“Sinds 1962 is vandervalk+degroot uitgegroeid tot marktleider op het gebied van reiniging, inspectie en renovatie van diverse infrastructuurprojecten.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidencePernis, NetherlandsHQ checked Sep 22, 202651-200113 contacts →

Indirect evidence

“DIT IS HEBO MARITIEMSERVICE.”

Source: RevenueBase Database · checked Sep 22, 2026
7Partial evidenceRotterdam, NetherlandsHQ checked Sep 22, 202651-20094 contacts →

Partial evidence

“The Paradigm Group was established in the Netherlands in 2009 to develop a number of ‘new generation’ well intervention technologies.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceRotterdam, NetherlandsHQ checked Sep 22, 202651-20088 contacts →

Indirect evidence

“Nevesbu is an independent naval architect and platform systems integrator, based in the Netherlands.”

Source: RevenueBase Database · checked Sep 22, 2026
9Partial evidenceEmmen, NetherlandsHQ checked Sep 22, 202651-20084 contacts →

Partial evidence

“An established provider of Well Intervention services to the Energy Industry.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceHoogvliet, NetherlandsHQ checked Sep 22, 202651-20081 contacts →

Indirect evidence

“Dräger Marine & Offshore is one of the major players in the port of Rotterdam when it comes to high quality marine & offshore services in the field of firefighting, rescue and…”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceHarlingen, NetherlandsHQ checked Sep 22, 202651-20070 contacts →

Indirect evidence

“Van Stee Offshore is a company specialised in supporting offshore, Oil & Gas, dredging- and Renewable energy projects worldwide.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceDen Helder, NetherlandsHQ checked Sep 22, 202611-5063 contacts →

Indirect evidence

“SeaMar is a family-owned maritime service provider, founded in and headquartered in Den Helder.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceRotterdam, NetherlandsHQ checked Sep 22, 202651-20057 contacts →

Indirect evidence

“At Mr.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect 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
15Indirect evidenceNumansdorp, NetherlandsHQ checked Sep 22, 202651-20056 contacts →

Indirect evidence

“Seatools helps its clients in the dredging and offshore energy business achieve higher workability and higher operational efficiency, both key to lowering cost and environmental…”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceGenemuiden, NetherlandsHQ checked Sep 22, 202651-20053 contacts →

Indirect evidence

“Vanuit de vestigingen in Genemuiden, Rotterdam en Groningen werkt Tebezo al 45 jaar aan de rijke natte infrastructuur waar Nederland trots op is.”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceRotterdam, NetherlandsHQ checked Sep 22, 202611-5037 contacts →

Indirect evidence

“ROG, your partner for Dockside and Onsite services!”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceUrk, NetherlandsHQ checked Sep 22, 202611-5035 contacts →

Indirect evidence

“GLOBAL COMMERCIAL DIVING, ROV, SUBSEA MARINE AND OFFSHORE CONSTRUCTION SERVICES DUC Marine Group offers services to the Offshore Construction, Renewables, Oil and Gas Construction…”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceIjmuiden, NetherlandsHQ checked Sep 22, 202651-20028 contacts →

Indirect evidence

“We are Ardent, a leading marine and offshore services company, delivering effective and innovative solutions.”

Source: RevenueBase Database · checked Sep 22, 2026
20Partial evidenceTerneuzen, NetherlandsHQ checked Sep 22, 202651-20022 contacts →

Partial evidence

“Wӓrtsilӓ Underwater Services started its journey as an underwater service provider with a team of two divers in September 1993, specialising in repairing, overhauling and…”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceArnhem, NetherlandsHQ checked Sep 22, 202611-5021 contacts →

Indirect evidence

“H2O Drones is de pionier en Nederlandse marktleider op het gebied van innovatieve onderwaterinspecties met onderwaterdrones.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceThe Hague, NetherlandsHQ checked Sep 22, 202611-5019 contacts →

Indirect evidence

“Lobster Robotics is a high-tech company based in the Netherlands.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceZuid-beijerland, NetherlandsHQ checked Sep 22, 202611-5017 contacts →

Indirect evidence

“Marine Masters act as contractors and consultants for • Underwriters, Claims Handlers and Brokers • Shipowners and Managers • Offshore Energy industry We offer consultancy for…”

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidenceLijnden, NetherlandsHQ checked Sep 22, 202611-5016 contacts →

Indirect evidence

“Onderzoek en advies op en onder de waterlijn”

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceSchiedam, NetherlandsHQ checked Sep 22, 20261-1015 contacts →

Indirect evidence

“Inspection and digitization of waterborne infrastructure, especially in hard-to-reach, dark and GPS-challenged environments.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 120 underwater intervention companies based in the Netherlands

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Underwater intervention companies based in the Netherlands at a glance

As of Sep 22, 2026
32.0%Verified-email coverage
77.1Average contacts per company
11-50Median size (employees)
10.0%Largest-city concentration · Rotterdam
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
35
51-200
24
201-500
3
1,001-5,000
2
5,001-10,000
2

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 120 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 underwater intervention 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 “underwater intervention 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 underwater intervention 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 underwater intervention 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, 2,963 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 underwater intervention 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 underwater intervention companies are there based in the Netherlands?

RevenueBase identified 120 underwater intervention 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?

VAN Oord, headquartered in Rotterdam, tops this list with the largest team on record.

Which city has the most underwater intervention companies?

Rotterdam leads with 12 headquartered companies, followed by Amsterdam (5) and Al (3).

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 2,963 verified decision-maker contacts tracked across these 120 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.