Company lists · Data refreshed November 2026

Top 25 Underwater maintenance service providers based in the Netherlands

Name: Underwater maintenance service providers based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 140 companies tracked

RevenueBase identified 140 company matches for underwater maintenance service providers associated with the Netherlands as of November 2026 and tracks 2,394 professional contacts across them, including 656 with verified work emails. Rotterdam is the largest hub.

This list covers company matches for underwater maintenance service providers 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

140Companies

2,394Contacts tracked

656Verified emails

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The 25 largest underwater maintenance service providers based in the Netherlands

Ranked by team size

Top 25 of 140 company matches for underwater maintenance service providers 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	N-Sea Group	Exact match	Dordrecht, NetherlandsHQ recorded Nov 6, 2026	201-500	447 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
2	Multraship Towage & Salvage	Exact match	Terneuzen, NetherlandsHQ recorded Nov 6, 2026	201-500	220 contacts →
	Exact match “Multraship Towage & Salvage is a division of the Muller Maritime Group, jointly owned by the Dutch Muller Family and Hamburg based Fairplay Towage.The company's core activities…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	HEBO	Exact match	Pernis, NetherlandsHQ recorded Nov 6, 2026	51-200	135 contacts →
	Exact match “DIT IS HEBO MARITIEMSERVICE.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Bluestream, An OEG Company	Exact match	Den Helder, NetherlandsHQ recorded Nov 6, 2026	51-200	133 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
5	Dräger Marine & Offshore	Exact match	Hoogvliet, NetherlandsHQ recorded Nov 6, 2026	51-200	81 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
6	VAN Stee Offshore	Exact match	Harlingen, NetherlandsHQ recorded Nov 6, 2026	51-200	77 contacts →
	Exact match “Van Stee Offshore is a company specialised in supporting offshore, Oil & Gas, dredging- and Renewable energy projects worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Seamar	Exact match	Den Helder, NetherlandsHQ recorded Nov 6, 2026	11-50	68 contacts →
	Exact match “SeaMar is a family-owned maritime service provider, founded in and headquartered in Den Helder.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Mr. Marine	Exact match	Rotterdam, NetherlandsHQ recorded Nov 6, 2026	51-200	60 contacts →
	Exact match “At Mr.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	ROG Ship Repair & Rotterdam Offshore Group	Exact match	Rotterdam, NetherlandsHQ recorded Nov 6, 2026	11-50	42 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
10	PRO Liquid	Exact match	Rotterdam, NetherlandsHQ recorded Nov 6, 2026	51-200	34 contacts →
	Exact match “About Pro Liquid Pro Liquid is a one-stop maritime service provider specialising in liquid offloading services and equipment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	DUC Marine Group	Exact match	Urk, NetherlandsHQ recorded Nov 6, 2026	11-50	34 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
12	Reikon BV	Exact match	Spijkenisse, NetherlandsHQ recorded Nov 6, 2026	11-50	31 contacts →
	Exact match “For more than 50 years Reikon has been the specialist in the field of consulting, and supplying pumps, Ballast Water Management Systems, fresh water makers, waste treatment…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Royal Roos	Exact match	Rotterdam Havens, NetherlandsHQ recorded Nov 6, 2026	11-50	27 contacts →
	Exact match “At Royal Roos, we are committed to investing in the future of greener shipping.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	H2o Drones B.V	Exact match	Arnhem, NetherlandsHQ recorded Nov 6, 2026	11-50	22 contacts →
	Exact match “H2O Drones is de pionier en Nederlandse marktleider op het gebied van innovatieve onderwaterinspecties met onderwaterdrones.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Baars-Cipro	Exact match	Lijnden, NetherlandsHQ recorded Nov 6, 2026	11-50	18 contacts →
	Exact match “Onderzoek en advies op en onder de waterlijn” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Duik- & Bergingsbedrijf W. Smit	Exact match	Rotterdam, NetherlandsHQ recorded Nov 6, 2026	11-50	15 contacts →
	Exact match “Duik‑ en Bergingsbedrijf W.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Seascape Subsea BV	Exact match	Sleeuwijk, NetherlandsHQ recorded Nov 6, 2026	1-10	13 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
18	Marine Repair B.V	Exact match	Dordrecht, NetherlandsHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Hydrocare B.V	Exact match	Oisterwijk, NetherlandsHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “Hydrocare is the leading partner in hydraulic breakdown and maintenance services for the maritime industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Vespower BV	Exact match	Ridderkerk, NetherlandsHQ recorded Nov 6, 2026	51-200	11 contacts →
	Exact match “Vespower is a trusted specialist company offering comprehensive ship repair and marine engine services with an 20 years of overhaul and maintenance history, as well as a your…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	QCEAS	Exact match	Beusichem, NetherlandsHQ recorded Nov 6, 2026	11-50	11 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
22	DE Haas Rotterdam Shipyard	Exact match	Rotterdam, NetherlandsHQ recorded Nov 6, 2026	11-50	10 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Aquatech Diving	Exact match	Joure, NetherlandsHQ recorded Nov 6, 2026	11-50	9 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
24	Seatec Subsea Systems B.V	Exact match	Colijnsplaat, NetherlandsHQ recorded Nov 6, 2026	11-50	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	United Marine Services Group	Exact match	Pernis, NetherlandsHQ recorded Nov 6, 2026	51-200	8 contacts →
	Exact match “United Marine Service Group BV is a global service provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “underwater maintenance service providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 140 underwater maintenance service providers based in the Netherlands

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Underwater maintenance service providers based in the Netherlands at a glance

As of Nov 6, 2026

27.4%Verified-email coverage

17.1Average contacts per company

1-10Median size (employees)

9.3%Largest-city concentration · Rotterdam

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 140 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 “underwater maintenance service providers” 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 656 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 “underwater maintenance service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many underwater maintenance service providers are there based in the Netherlands?

RevenueBase identified 140 company matches for underwater maintenance service providers 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?

N-Sea Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most underwater maintenance service providers?

Rotterdam leads with 13 company records, followed by Urk (3) and Al (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 656 professional contacts with verified work emails tracked across these 140 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.