Company lists · Data refreshed September 2026

Top 25 Underwater construction firms based in the Netherlands

Name: Underwater construction firms based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 128 companies tracked

RevenueBase identified 128 underwater construction firms headquartered in the Netherlands as of September 2026 and tracks 12,651 professional contacts across them, including 4,207 with verified work emails. Rotterdam is the largest hub.

This list covers underwater construction firms 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 19, 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 19, 2026 86% judged on-target in blind review

128Companies

12,651Contacts tracked

4,207Verified emails

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The 25 largest underwater construction firms based in the Netherlands

Ranked by team size

Top 25 of 128 underwater construction firms based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to underwater construction firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	VAN Oord	Indirect evidence	3063 Nh, NetherlandsHQ checked Sep 19, 2026	5,001-10,000	4,364 contacts →
	Indirect evidence “Van Oord is a leading international marine contractor focusing on dredging, infrastructure and offshore energy projects.” Source: RevenueBase Database · checked Sep 19, 2026
2	Boskalis	Indirect evidence	Papendrecht, NetherlandsHQ checked Sep 19, 2026	10001+	3,366 contacts →
	Indirect evidence “Boskalis is a leading global services provider operating in the dredging, maritime infrastructure and maritime services sectors.” Source: RevenueBase Database · checked Sep 19, 2026
3	Heerema Marine Contractors	Indirect evidence	Leiden, NetherlandsHQ checked Sep 19, 2026	1,001-5,000	2,643 contacts →
	Indirect evidence “Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Source: RevenueBase Database · checked Sep 19, 2026
4	N-Sea Group	Indirect evidence	Dordrecht, NetherlandsHQ checked Sep 19, 2026	201-500	364 contacts →
	Indirect evidence “N-Sea is an end-to-end subsea services provider.” Source: RevenueBase Database · checked Sep 19, 2026
5	DCN Diving	Indirect evidence	Bergen Op Zoom, NetherlandsHQ checked Sep 19, 2026	201-500	344 contacts →
	Indirect 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 19, 2026
6	Bluestream, An OEG Company	Indirect evidence	Den Helder, NetherlandsHQ checked Sep 19, 2026	51-200	160 contacts →
	Indirect evidence “Bluestream is now part of OEG's subsea service division.” Source: RevenueBase Database · checked Sep 19, 2026
7	Neptune Marine	Indirect evidence	Hardinxveld-giessendam, NetherlandsHQ checked Sep 19, 2026	51-200	123 contacts →
	Indirect evidence “Neptune has been offering versatile maritime solutions, for over 50 years.” Source: RevenueBase Database · checked Sep 19, 2026
8	Beens Groep	Indirect evidence	Genemuiden, NetherlandsHQ checked Sep 19, 2026	51-200	114 contacts →
	Indirect evidence “Beens Groep B.V.” Source: RevenueBase Database · checked Sep 19, 2026
9	Seacontractors	Indirect evidence	Flushing, NetherlandsHQ checked Sep 19, 2026	51-200	109 contacts →
	Indirect evidence “Seacontractors is the leading maritime service provider and anchor handling tug supplier (AHTS) worldwide, offering expert project support.” Source: RevenueBase Database · checked Sep 19, 2026
10	VAN Stee Offshore	Indirect evidence	Harlingen, NetherlandsHQ checked Sep 19, 2026	51-200	70 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 19, 2026
11	DE Boer & DE Groot Civiele Werken B.V	Indirect evidence	Harlingen, NetherlandsHQ checked Sep 19, 2026	51-200	65 contacts →
	Indirect evidence “Een familiebedrijf met jarenlange kennis en ervaring in de beton- en waterbouw, dat is De Boer & De Groot.” Source: RevenueBase Database · checked Sep 19, 2026
12	Multimetaal	Partial evidence	Den Helder, NetherlandsHQ checked Sep 19, 2026	51-200	57 contacts →
	Partial 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 19, 2026
13	Tebezo Waterbouw & Nautische Dienstverlening B.V	Indirect evidence	Genemuiden, NetherlandsHQ checked Sep 19, 2026	51-200	53 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 19, 2026
14	ROG Ship Repair & Rotterdam Offshore Group	Indirect evidence	Rotterdam, NetherlandsHQ checked Sep 19, 2026	11-50	37 contacts →
	Indirect evidence “ROG, your partner for Dockside and Onsite services!” Source: RevenueBase Database · checked Sep 19, 2026
15	DE Vries Werkendam	Indirect evidence	Werkendam Brabant, NetherlandsHQ checked Sep 19, 2026	51-200	35 contacts →
	Indirect evidence “De Vries Werkendam is toonaangevend in de beton -en waterbouw en valt onder De Vries bedrijvengroep, al meer dan 60 jaar gedreven door vakmanschap.” Source: RevenueBase Database · checked Sep 19, 2026
16	DUC Marine Group	Partial evidence	Urk, NetherlandsHQ checked Sep 19, 2026	11-50	35 contacts →
	Partial 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 19, 2026
17	Wӓrtsilӓ Underwater Services	Partial evidence	Terneuzen, NetherlandsHQ checked Sep 19, 2026	51-200	22 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 19, 2026
18	Breko Shipbuilding & Repair PSI Piping	Indirect evidence	Papendrecht, NetherlandsHQ checked Sep 19, 2026	51-200	20 contacts →
	Indirect evidence “BREKO (1974) en PSI (1998) zijn actief op de markt van de scheepvaart, offshore en industrie.” Source: RevenueBase Database · checked Sep 19, 2026
19	CFE Nederland	Indirect evidence	Dordrecht, NetherlandsHQ checked Sep 19, 2026	51-200	19 contacts →
	Indirect evidence “Samen bouwen aan de toekomst’, zo luidt het devies van CFE Nederland.” Source: RevenueBase Database · checked Sep 19, 2026
20	Marinemasters	Indirect evidence	Zuid-beijerland, NetherlandsHQ checked Sep 19, 2026	11-50	17 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 19, 2026
21	Vuicon Engineering	Indirect evidence	Capelle Aan Den Ijssel, NetherlandsHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “Vuicon Engineering is a dynamic and ambitious engineering company active in the marine and offshore industry.” Source: RevenueBase Database · checked Sep 19, 2026
22	Maritime Construction Services BV	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 19, 2026	51-200	15 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 19, 2026
23	Marine Repair B.V	Indirect evidence	Dordrecht, NetherlandsHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
24	C-Ventus Offshore Windfarm Services BV	Indirect evidence	Ijmuiden, NetherlandsHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Recognizing the demand for a dedicated service provider with specialist knowledge in offshore windfarm installation, Balance of Plant (BoP) maintenance and decommissioning…” Source: RevenueBase Database · checked Sep 19, 2026
25	Duik- & Bergingsbedrijf W. Smit	Indirect evidence	Rotterdam, NetherlandsHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Duik‑ en Bergingsbedrijf W.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: underwater construction firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names underwater construction firms.
Partial evidence: Its own public description names part of underwater construction firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name underwater construction firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 128 underwater construction firms based in the Netherlands

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Underwater construction firms based in the Netherlands at a glance

As of Sep 19, 2026

33.3%Verified-email coverage

98.8Average contacts per company

11-50Median size (employees)

9.4%Largest-city concentration · Rotterdam

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

5,001-10,000

10001+

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 128 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 construction firms, 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 construction firms”. 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 construction firms), 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 construction firms, 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, 4,207 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 19, 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 construction firms, 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 construction firms are there based in the Netherlands?

RevenueBase identified 128 underwater construction firms 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 construction firms?

Rotterdam leads with 12 headquartered companies, followed by Amsterdam (4) 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 4,207 verified decision-maker contacts tracked across these 128 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 19, 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.