Company lists · Data refreshed September 2026

Top 25 Offshore wind consulting firms based in Belgium

RevenueBase identified 61 offshore wind consulting firms headquartered in Belgium as of September 2026 and tracks 10,512 professional contacts across them, including 2,796 with verified work emails. Brussels is the largest hub.

This list covers offshore wind 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 29, 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 29, 2026 86% judged on-target in blind review
61Companies
10,512Contacts tracked
2,796Verified emails
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The 25 largest offshore wind consulting firms based in Belgium

Ranked by team size
Top 25 of 61 offshore wind consulting firms based in Belgium, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to offshore wind 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceBeveren-kruibeke-zwijndrecht, BelgiumHQ checked Sep 29, 20265,001-10,0004,395 contacts →

Partial 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 29, 2026
2Indirect evidenceWatermael-boitsfort, BelgiumHQ checked Sep 29, 202651-20074 contacts →

Indirect evidence

“Deplasse est un bureau d’études et de conseils qui offre une vision globale et transversale sur la transition énergétique incluant expertise technique, approche patrimoniale et…”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceOostende, BelgiumHQ checked Sep 29, 202651-20066 contacts →

Indirect evidence

“Elicio NV is a renewable energy producer operating internationally.”

Source: RevenueBase Database · checked Sep 29, 2026
4Strong evidenceBrussels, BelgiumHQ checked Sep 29, 20261-1016 contacts →

Strong evidence

“24SEA leads the market in structural health monitoring solutions for offshore wind foundations.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceBelgiumHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“SECA BENELUX, après plus de 25 ans au sein du Groupe SECA, a décidé de poursuivre son développement en dehors du Groupe SECA, tout en maintenant un partenariat privilégié.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceKeerbergen, BelgiumHQ checked Sep 29, 202611-5015 contacts →

Indirect evidence

“STABILITEIT - TECHNIEKEN - VEILIGHEIDSCOÖRDINATIE - EPB Als ingenieursbureau voor bouw en milieu zijn wij praktijkgericht en prijsbewust.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceYvoir, BelgiumHQ checked Sep 29, 202611-5010 contacts →

Indirect evidence

“Watt Else is a consultancy company specialised in sustainable energy and energy transition.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceLeuven, BelgiumHQ checked Sep 29, 20261-108 contacts →

Partial evidence

“Enersynt is an agile engineering consulting firm dedicated to designing and realising your high voltage installations.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceKontich, BelgiumHQ checked Sep 29, 202611-508 contacts →

Indirect evidence

“Neotec is your partner in the construction and maintenance of technical projects across electricity, renewable energy, telecommunications, and engineering.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceDour, BelgiumHQ checked Sep 29, 20261-107 contacts →

Indirect evidence

“E-nova est un bureau d’ingénieurs experts dans la performance énergétique des bâtiments, les énergies renouvelables et l'utilisation rationnelle de l'énergie.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceEcaussinnes, BelgiumHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“Wascos has been offering high quality services of consulting engineering for 20 years.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceGhent, BelgiumHQ checked Sep 29, 202611-506 contacts →

Indirect evidence

“Studiebureau Tecclem is gespecialiseerd in EPB- & Ventilatieverslaggeving, Veiligheidscoördinatie, Stabiliteitsstudies, EPC en Blowerdoortesten.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceGenk, BelgiumHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“Bij OLIVA TECHNICS kan u terecht voor elke expertise opdracht: Van hoog technologisch en specifiek technisch gericht tot multidisciplinaire opdrachten.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceHoevenen, BelgiumHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“VLEEMO NV is een Vlaams windenergiebedrijf dat gespecialiseerd is in duurzame ontwikkelingen in havengebied.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceBrussels, BelgiumHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“GreenPlug is a Belgian company specialized in renewable energy with expertise at each stage of the project : feasibility study, project development, energy park construction and…”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceBree, BelgiumHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Bij GHW by Studibo ondersteunen we bouwheren, architecten en ontwikkelaars met energieadvies en technische studies voor bouw- en renovatieprojecten.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceSint-gillis-waas, BelgiumHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceGhent, BelgiumHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

“Welkom bij Become 9, uw partner voor duurzame investeringsprojecten op het gebied van energie.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceTemse, BelgiumHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

“Based in Temse near Antwerp we are active in renewable energy production and distribution.”

Source: RevenueBase Database · checked Sep 29, 2026
20Strong evidenceGhent, BelgiumHQ checked Sep 29, 20261-101 contacts →

Strong evidence

“Geo-Wise BV is an engineering consulting company established to offer innovative simulation-based solutions for complex engineering problems in the field of offshore & onshore…”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidence3830 Wellen, BelgiumHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Weygers montage is een dynamische onderneming die zich toespitst op het plaatsen van projecten die groene stroom opwekken of energiebesparend zijn.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceFrameries, BelgiumHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Dans l'univers dynamique de l'énergie renouvelable, Chez Smart Grid Friendly, notre passion et notre expertise font la différence.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceBredene, BelgiumHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“TOMIDI CONSULTING is a maritime company based out of Res.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceRotselaar, BelgiumHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“Advice in Energy,sustainability, auditing, sun panels, biomass, wind projects, BREEAM Hernieuwbare energie, een duurzaam energiebeleid en het reduceren van kosten zijn niet meer…”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceKnesselare, BelgiumHQ checked Sep 29, 2026n/a1 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 61 offshore wind consulting firms based in Belgium

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Offshore wind consulting firms based in Belgium at a glance

As of Sep 29, 2026
26.6%Verified-email coverage
172.3Average contacts per company
1-10Median size (employees)
13.1%Largest-city concentration · Brussels
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
39
11-50
12
51-200
5
1,001-5,000
2
5,001-10,000
2

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 61 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 offshore wind 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 “offshore wind 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 offshore wind 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 offshore wind 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, 2,796 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 29, 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 offshore wind 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 offshore wind consulting firms are there based in Belgium?

RevenueBase identified 61 offshore wind 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 offshore wind consulting firms?

Brussels leads with 8 headquartered companies, followed by Ghent (4) and Antwerp (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 2,796 verified decision-maker contacts tracked across these 61 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 29, 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.