Company lists · Data refreshed November 2026

Top 25 Offshore diving contractors based in the Netherlands

RevenueBase identified 63 company matches for offshore diving contractors associated with the Netherlands as of November 2026 and tracks 4,237 professional contacts across them, including 441 with verified work emails. Rotterdam is the largest hub.

This list covers company matches for offshore diving contractors associated with the Netherlands, 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 6, 2026.

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 6, 2026 How this list was built
63Companies
4,237Contacts tracked
441Verified emails
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The 25 largest offshore diving contractors based in the Netherlands

Ranked by team size
Top 25 of 63 company matches for offshore diving contractors based in the Netherlands, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchLeiden, NetherlandsHQ recorded Nov 6, 20261,001-5,0002,841 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchDordrecht, NetherlandsHQ recorded Nov 6, 2026201-500447 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSpicalaan 13 2132 Jg Hoofddorp the Netherlands, NetherlandsHQ recorded Nov 6, 202651-200179 contacts →

Exact match

“Petrodec is a responsible offshore contractor, ready to deliver safe, efficient and innovative decommissioning or re-use solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDen Helder, NetherlandsHQ recorded Nov 6, 202651-200133 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchHoogvliet, NetherlandsHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNumansdorp, NetherlandsHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchOosterhout, NetherlandsHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“SWIFT DRILLING: HIGH VALUE DRILLING, WORKOVER + P&A SOLUTIONS Within Swift Drilling we strive to have the best performance in safety and efficiency in good cooperation with the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchRotterdam, NetherlandsHQ recorded Nov 6, 202611-5042 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchUrk, NetherlandsHQ recorded Nov 6, 202611-5034 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWoerden, NetherlandsHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“SPT Offshore, a DEME Offshore subsidiary, is the leading offshore contractor for suction pile anchors and foundations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchJg, NetherlandsHQ recorded Nov 6, 2026501-1,00020 contacts →

Exact match

“LLyr Marine is Operating a Fleet of 24 Offshore Vessels: AHTS, DSV, Pipelay, Barges, Multicats, Lift boat.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202651-20017 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchRotterdam, NetherlandsHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Duik‑ en Bergingsbedrijf W.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSleeuwijk, NetherlandsHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“Seascape Subsea BV is a company specialized in the the development and production of innovative underwater equipment and commercial diving systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBeusichem, NetherlandsHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“At diving company Qceas, we go further where others stop.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchCapelle Aan Den Ijssel, NetherlandsHQ recorded Nov 6, 202611-5010 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchEnkhuizen, NetherlandsHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“BC-opleidingen is the Dutch centre for professional diving in Enkhuizen, one hour from Amsterdam Schiphol.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchJoure, NetherlandsHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Aquatech Diving is een toonaangevend duikbedrijf met 30 jaar ervaring in civiele onderwaterbouw.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchColijnsplaat, NetherlandsHQ recorded Nov 6, 202611-509 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHardinxveld-giessendam, NetherlandsHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Duik- en Bergingsbedrijf Europa is al meer dan 50 jaar een toonaangevend bedrijf in de duik- en bergingssector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchJoure, NetherlandsHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Founded in February 2022, Aquatech Offshore expands the proven expertise of Aquatech Diving (est.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGenemuiden, NetherlandsHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Duikbedrijf Schuite is een professioneel duikbedrijf met jarenlange ervaring in werkzaamheden onderwater.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchVianen, NetherlandsHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Duikbedrijf COW BV voert duikwerkzaamheden uit in de civiele onderwaterbouw in zowel hoofd als onderaanneming voor Rijkswaterstaat, havenbedrijven, lokale overheden, aannemers en…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchTerneuzen, NetherlandsHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Keeping ships where they belong: in the water.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchIjmuiden, NetherlandsHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Wals Diving & Marine Service provides a complete range of diving services including air and mixed gas diving techniques for construction and inspection, maintenance and repair…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 63 offshore diving contractors based in the Netherlands

See the full list, filter by size, metro and specialty, and access 441 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offshore diving contractors based in the Netherlands at a glance

As of Nov 6, 2026
10.4%Verified-email coverage
67.3Average contacts per company
11-50Median size (employees)
6.3%Largest-city concentration · Rotterdam
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
25
51-200
9
201-500
2
501-1,000
1
1,001-5,000
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 63 companies.

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.
What qualifies
Company records associated with the Netherlands whose business descriptions match “offshore diving contractors” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 441 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 6, 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.

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 “offshore diving contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore diving contractors are there based in the Netherlands?

RevenueBase identified 63 company matches for offshore diving contractors associated with the Netherlands 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?

Heerema Marine Contractors tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most offshore diving contractors?

Rotterdam leads with 4 company records, followed by Urk (3) and Amsterdam (2).

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 441 professional contacts with verified work emails tracked across these 63 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 6, 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.