Company lists · Data refreshed September 2026

Top 25 Infrastructure conglomerates based in Belgium

RevenueBase identified 204 infrastructure conglomerates headquartered in Belgium as of September 2026 and tracks 17,560 professional contacts across them, including 3,617 with verified work emails. Bruxelles is the largest hub.

This list covers infrastructure conglomerates 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 20, 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 20, 2026 86% judged on-target in blind review
204Companies
17,560Contacts tracked
3,617Verified emails
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The 25 largest infrastructure conglomerates based in Belgium

Ranked by team size
Top 25 of 204 infrastructure conglomerates based in Belgium, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure conglomerates: 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
1Indirect evidenceSint-lambrechts-woluwe, BelgiumHQ checked Sep 20, 202610001+3,115 contacts →

Indirect evidence

“A multidisciplinary group with over 115 years’ experience.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceKontich, BelgiumHQ checked Sep 20, 20261,001-5,000999 contacts →

Partial evidence

“We’re building and managing tomorrow’s vital infrastructure Circet Benelux bouwt en beheert de vitale netwerken van morgen: vaste en mobiele telecomnetwerken, slimme…”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceGhent, BelgiumHQ checked Sep 20, 20261,001-5,000921 contacts →

Partial evidence

“As a multi-specialist construction group, Denys wants to contribute to a higher quality of life, through the design and construction of a better infrastructure.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidencePelt, BelgiumHQ checked Sep 20, 20261,001-5,000661 contacts →

Indirect evidence

“Since its foundation in 1960, APK (Algemene Participatie Kerkhofs) has grown enormously to become a multidisciplinary group.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceHarelbeke, BelgiumHQ checked Sep 20, 20261,001-5,000429 contacts →

Indirect evidence

“Stadsbader Group is dagelijks actief op zo’n 250 werven in België en omliggende landen.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceNivelles, BelgiumHQ checked Sep 20, 2026201-500340 contacts →

Indirect evidence

“From the first spark of inspiration to the final moment of production, Group-IPS supports the projects that change lives.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceKruibeke, BelgiumHQ checked Sep 20, 2026501-1,000294 contacts →

Indirect evidence

“Artes Group werkt aan uitdagende bouwopdrachten en unieke werven.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceDrongen, BelgiumHQ checked Sep 20, 20261,001-5,000279 contacts →

Indirect evidence

“WILLEMEN INFRA beheerst alle aspecten van de wegenbouw.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceNeder-over-heembeek, BelgiumHQ checked Sep 20, 2026201-500269 contacts →

Indirect evidence

“STADSBADER CONTRACTORS is a leading and high-performing multidisciplinary civil engineering contractor.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceBruxelles, BelgiumHQ checked Sep 20, 20261,001-5,000232 contacts →

Indirect evidence

“Werken aan wegen en autosnelwegen, tramsporen, containerterminals, luchthavens, parkings, sportcomplexen: Colas Belgium draagt bij tot het succes van boeiende projecten voor de…”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceWortegem-petegem, BelgiumHQ checked Sep 20, 20261,001-5,000222 contacts →

Indirect evidence

“Onderneming van het Jaar® 2023”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceWondelgem, BelgiumHQ checked Sep 20, 2026201-500205 contacts →

Indirect evidence

“Square Group overkoepelt een reeks bedrijven die ontstaan zijn uit de groei van Aclagro.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceMechelen, BelgiumHQ checked Sep 20, 20261,001-5,000172 contacts →

Indirect evidence

“Bij Willemen Groep bouwen we iedere dag opnieuw aan een betere wereld.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceBeerse, BelgiumHQ checked Sep 20, 2026501-1,000159 contacts →

Partial evidence

“Met bijna 50 jaar ervaring in de bouwwereld, heeft DCA een solide reputatie opgebouwd als gewaardeerde partner voor bouw-en infrastructuurwerken.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceGeel, BelgiumHQ checked Sep 20, 2026201-500152 contacts →

Indirect evidence

“De geschiedenis van Vanhout begint reeds in 1928.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceHuizingen, BelgiumHQ checked Sep 20, 2026201-500141 contacts →

Indirect evidence

“ARGEA, nouvelle dénomination de SODRAEP, est une filiale de la SADE (Groupe NGE), implantée en Belgique depuis 1973.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceHasselt, BelgiumHQ checked Sep 20, 2026201-50061 contacts →

Indirect evidence

“Kumpen, a stable value in construction was founded by 2 brothers.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceSchaerbeek, BelgiumHQ checked Sep 20, 202651-20055 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceLiège, BelgiumHQ checked Sep 20, 202651-20055 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceBrussels, BelgiumHQ checked Sep 20, 20261,001-5,00046 contacts →

Indirect evidence

“Cenergy Holdings, founded in 2016, is a springboard to an exciting future.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceKontich, BelgiumHQ checked Sep 20, 202651-20039 contacts →

Indirect evidence

“Franki Construct is specialist in de burgerlijke bouwkunde, de bouw van stations met bijhorende spoorinfrastructuur, parkeergebouwen en de (zware) industriebouw.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceBornem, BelgiumHQ checked Sep 20, 202651-20038 contacts →

Indirect evidence

“Sinds 1975 is Lareco Bornem actief op het gebied van wegenbouw, waterbouw, milieutechniek, grondwerken en betonwerken.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceZwijndrecht, BelgiumHQ checked Sep 20, 202651-20033 contacts →

Indirect evidence

“Al 130 jaar meedenken, realiseren en ontzorgen wij op de grens van land en water!”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceAntwerpen, BelgiumHQ checked Sep 20, 202651-20033 contacts →

Indirect evidence

“Roefs Group is een krachtenbundeling van De Ruyte Milieu, Roefs, Ondernemingen Jansen en Jansen Grondopzuiging.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceZwevegem, BelgiumHQ checked Sep 20, 202651-20031 contacts →

Partial evidence

“Persyn is een betrouwbaar, gezond en innovatief bouwbedrijf, gespecialiseerd in industriële en infrastructuurwerken, met waardering voor personeel en aandacht voor klantgerichte…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 204 infrastructure conglomerates based in Belgium

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Infrastructure conglomerates based in Belgium at a glance

As of Sep 20, 2026
20.6%Verified-email coverage
86.1Average contacts per company
11-50Median size (employees)
3.4%Largest-city concentration · Bruxelles
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
65
11-50
53
51-200
35
201-500
22
501-1,000
8
1,001-5,000
13
5,001-10,000
1
10001+
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 204 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 infrastructure conglomerates, 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 “infrastructure conglomerates”. 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 infrastructure conglomerates), 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 infrastructure conglomerates, 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, 3,617 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 20, 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 infrastructure conglomerates, 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 infrastructure conglomerates are there based in Belgium?

RevenueBase identified 204 infrastructure conglomerates 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?

BESIX, headquartered in Sint-Lambrechts-Woluwe Brussel, tops this list with the largest team on record.

Which city has the most infrastructure conglomerates?

Bruxelles leads with 7 headquartered companies, followed by Antwerpen (6) and Gent (5).

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 3,617 verified decision-maker contacts tracked across these 204 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 20, 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.