Company lists · Data refreshed September 2026

Top 25 Marine environmental consulting firms based in Belgium

Name: Marine environmental consulting firms based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 96 companies tracked

RevenueBase identified 96 marine environmental consulting firms headquartered in Belgium as of September 2026 and tracks 6,024 professional contacts across them, including 3,376 with verified work emails. Antwerp is the largest hub.

This list covers marine environmental consulting firms headquartered in Belgium, 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 28, 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 28, 2026 86% judged on-target in blind review

96Companies

6,024Contacts tracked

3,376Verified emails

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The 25 largest marine environmental consulting firms based in Belgium

Ranked by team size

Top 25 of 96 marine environmental consulting firms based in Belgium, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to marine environmental consulting 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	Deme Group	Strong evidence	Beveren-kruibeke-zwijndrecht, BelgiumHQ checked Sep 28, 2026	5,001-10,000	4,395 contacts →
	Strong evidence “DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, dredging and marine infrastructure, and environmental remediation.” Source: RevenueBase Database · checked Sep 28, 2026
2	Geoxyz	Partial evidence	Zwevegem, BelgiumHQ checked Sep 28, 2026	501-1,000	374 contacts →
	Partial evidence “GEOxyz is an international maritime data company specialized in hydrographic, geophysical, geotechnical and topographical surveys, site investigations, renewable energy support…” Source: RevenueBase Database · checked Sep 28, 2026
3	G-Tec	Partial evidence	Milmort, BelgiumHQ checked Sep 28, 2026	51-200	146 contacts →
	Partial evidence “G-TEC provides marine and land based geophysical surveys.” Source: RevenueBase Database · checked Sep 28, 2026
4	IMDC	Partial evidence	Antwerp, BelgiumHQ checked Sep 28, 2026	51-200	130 contacts →
	Partial evidence “IMDC (International Marine and Dredging Consultants) offers highly skilled expertise to tackle a wide range of water-related issues.” Source: RevenueBase Database · checked Sep 28, 2026
5	Trevi NV	Partial evidence	Gentbrugge, BelgiumHQ checked Sep 28, 2026	51-200	101 contacts →
	Partial evidence “Trevi Environmental Solutions is a Belgian environmental technology company.” Source: RevenueBase Database · checked Sep 28, 2026
6	Sertius Environmental And Safety Services	Partial evidence	Wijgmaal, BelgiumHQ checked Sep 28, 2026	51-200	82 contacts →
	Partial evidence “Sertius and its multidisciplinary team offer their services in the fields of environment and security- Legal advices and administrative support: Practical advices regarding…” Source: RevenueBase Database · checked Sep 28, 2026
7	Tauw Belgium	Partial evidence	Leuven (wijgmaal), BelgiumHQ checked Sep 28, 2026	51-200	80 contacts →
	Partial evidence “We shape a vital living environment.” Source: RevenueBase Database · checked Sep 28, 2026
8	Disa International	Indirect evidence	Beerse, BelgiumHQ checked Sep 28, 2026	51-200	80 contacts →
	Indirect evidence “We are DISA International.” Source: RevenueBase Database · checked Sep 28, 2026
9	Deme Environmental Contractors Decnv	Partial evidence	Zwijndrecht, BelgiumHQ checked Sep 28, 2026	201-500	38 contacts →
	Partial evidence “DEME Environmental Contractors (DEC) is an international environmental contractors with more than twenty years experience.” Source: RevenueBase Database · checked Sep 28, 2026
10	RDC Environment	Partial evidence	Brussels, BelgiumHQ checked Sep 28, 2026	11-50	31 contacts →
	Partial evidence “Our mission is to support decision-making towards a sustainable world." – Bernard De Caevel, Founder of RDC Environment For more than 30 years, RDC Environment has been helping…” Source: RevenueBase Database · checked Sep 28, 2026
11	K&c Marine Contractors	Indirect evidence	Beveren, BelgiumHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “K&C Diving was founded in 2009 as a diving company located in the port of Antwerp.” Source: RevenueBase Database · checked Sep 28, 2026
12	Milvus Consulting NV	Strong evidence	Gent, BelgiumHQ checked Sep 28, 2026	11-50	17 contacts →
	Strong evidence “Since the successful merge of OLFASCAN and ECOSCAN, MILVUS consulting has grown into a multidisciplinary firm offering independent, science-driven environmental advice.” Source: RevenueBase Database · checked Sep 28, 2026
13	Vanbreda Marine	Partial evidence	Antwerpen, BelgiumHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “We are Vanbreda's Marine department, a team of risk consultants and marine insurance brokers.” Source: RevenueBase Database · checked Sep 28, 2026
14	Advista	Indirect evidence	Louvain-la-neuve, BelgiumHQ checked Sep 28, 2026	1-10	13 contacts →
	Indirect evidence “ADVISTA est un bureau d’études et de conseils en environnement et développement durable.” Source: RevenueBase Database · checked Sep 28, 2026
15	AG Environnement	Partial evidence	Naninne, BelgiumHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “AG Environnement (for Assistance et gestion environnementale) wants to be a reliable partner to its clients dealing with environmental issues in the frame of their activities.” Source: RevenueBase Database · checked Sep 28, 2026
16	Bluetack	Partial evidence	Beerse, BelgiumHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “BlueTack is a marine solutions provider, a salvage company that together with its key alliance partners provides Incident Management & Pollution Remediation services.” Source: RevenueBase Database · checked Sep 28, 2026
17	Subsea Industries	Indirect evidence	Antwerp, BelgiumHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “Protecting ships’ hulls, rudders and running gear from corrosion, erosion and cavitation damage, and keeping the hull smooth and free of fouling are major concerns in the shipping…” Source: RevenueBase Database · checked Sep 28, 2026
18	Submar	Indirect evidence	Oostende, BelgiumHQ checked Sep 28, 2026	1-10	11 contacts →
	Indirect evidence “SUBMAR BVBA is specialized in carrying out professional diving work, high-tech cutting and underwater hull cleaning.” Source: RevenueBase Database · checked Sep 28, 2026
19	Gcm-A	Indirect evidence	Lier, BelgiumHQ checked Sep 28, 2026	1-10	9 contacts →
	Indirect evidence “BODEMONDERZOEKEN * Oriënterend bodemonderzoek * Beschrijvend bodemonderzoek * Saneringsprojecten * Begeleiding bij saneringen * Grondverzet * Historisch onderzoek * Verkennend…” Source: RevenueBase Database · checked Sep 28, 2026
20	Imcs Antwerp	Partial evidence	Antwerp, BelgiumHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “The IMCS Group of Companies, with 20 offices worldwide, aims to provide the international shipping and maritime industry with high quality surveys and services on a 24/7 basis.” Source: RevenueBase Database · checked Sep 28, 2026
21	Wascos Sprl	Partial evidence	Ecaussinnes, BelgiumHQ checked Sep 28, 2026	1-10	7 contacts →
	Partial evidence “Wascos has been offering high quality services of consulting engineering for 20 years.” Source: RevenueBase Database · checked Sep 28, 2026
22	Ecoscan	Indirect evidence	Ghent, BelgiumHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “ECOSCAN is een onafhankelijk advies- en studiebureau dat gespecialiseerd is in het opstellen en opvolgen van diverse milieu- en natuurrapporten voor projecten die mogelijk invloed…” Source: RevenueBase Database · checked Sep 28, 2026
23	SBS Environnement Sprl	Indirect evidence	Chaudfontaine, BelgiumHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Votre partenaire dans la gestion de votre environnement SBS Environnement : plus qu'un bureau d'études, LE partenaire dans la gestion de votre environnement.” Source: RevenueBase Database · checked Sep 28, 2026
24	Profish Technology	Indirect evidence	Naninne, BelgiumHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Aquatic life is continuously exposed to man-made threats, potentially exposing some species to the threat of extinction.” Source: RevenueBase Database · checked Sep 28, 2026
25	Bureau DW Bvba	Indirect evidence	Geel, BelgiumHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Bureau DW bvba is een onafhankelijk ingenieursbureau, gespecialiseerd in milieu- en omgevingsstudies, dat in 2016 werd opgericht door de bio-ingenieurs Jef Dierckx en Rob Wuyts.” Source: RevenueBase Database · checked Sep 28, 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: marine environmental consulting 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 marine environmental consulting firms.
Partial evidence: Its own public description names part of marine environmental consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine environmental consulting 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 96 marine environmental consulting firms based in Belgium

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Marine environmental consulting firms based in Belgium at a glance

As of Sep 28, 2026

56.0%Verified-email coverage

62.8Average contacts per company

1-10Median size (employees)

10.4%Largest-city concentration · Antwerp

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 96 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 marine environmental consulting 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 Belgium whose own description of what they do matches “marine environmental consulting 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 marine environmental consulting 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 marine environmental consulting firms, and records with no verified work email. Companies headquartered outside Belgium 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, 3,376 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 28, 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 marine environmental consulting 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 marine environmental consulting firms are there based in Belgium?

RevenueBase identified 96 marine environmental consulting firms headquartered in Belgium 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?

Deme Group, headquartered in Beveren-Kruibeke-Zwijndrecht, tops this list with the largest team on record.

Which city has the most marine environmental consulting firms?

Antwerp leads with 10 headquartered companies, followed by Antwerpen (6) and Brussels (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 3,376 verified decision-maker contacts tracked across these 96 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 28, 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.