Company lists · Data refreshed September 2026

Top 22 Infrastructure consulting firms based in Belgium

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

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 405 companies tracked

RevenueBase identified 405 infrastructure consulting firms headquartered in Belgium as of September 2026 and tracks 11,710 professional contacts across them, including 2,038 with verified work emails and 268 with mobile numbers. Brussels is the largest hub.

This list covers infrastructure 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

405Companies

11,710Contacts tracked

2,038Verified emails

268Mobile numbers

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The 22 largest infrastructure consulting firms based in Belgium

Ranked by team size

Top 22 of 405 infrastructure consulting firms based in Belgium, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names infrastructure consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Alten BelgiumIndirect evidence	Saint Gilles, BelgiumHQ checked Sep 3, 2026	501-1,000	645
	“ALTEN is a group of 57 professionals present all over the world and counts more than 88% of its employees being engineers.” Source: company website · checked Sep 3, 2026
2	SBEIndirect evidence	Sint-niklaas, BelgiumHQ checked Sep 3, 2026	201-500	268
	“SBE brings together more than 35 years of expertise with youthful creativity to create innovative civil engineering and electromechanical solutions for Belgium, the Netherlands…” Source: company website · checked Sep 3, 2026
3	IgretecIndirect evidence	Charleroi, BelgiumHQ checked Sep 3, 2026	201-500	268
	“Igretec accompagne les pouvoirs publics, les entreprises et les citoyens avec une expertise pluridisciplinaire de 30 métiers, en Wallonie et à Bruxelles.” Source: company website · checked Sep 3, 2026
4	Colas BelgiumIndirect evidence	Bruxelles, BelgiumHQ checked Sep 3, 2026	1,001-5,000	231
	“Werken aan wegen en autosnelwegen, tramsporen, containerterminals, luchthavens, parkings, sportcomplexen: Colas Belgium draagt bij tot het succes van boeiende projecten voor de…” Source: company website · checked Sep 3, 2026
5	Antea Group BelgiumStrong evidence	Antwerpen, BelgiumHQ checked Sep 3, 2026	201-500	220
	“Antea Group is an international consulting and engineering firm, specializing in full-service solutions in the fields of environment, infrastructure, public space, and water.” Source: company website · checked Sep 3, 2026
6	Herbosch-KierePartial evidence	Kallo, BelgiumHQ checked Sep 3, 2026	201-500	166
	“For more than a century, Herbosch-Kiere has been building sustainable infrastructure in, on and around water.” Source: company website · checked Sep 3, 2026
7	AESAIndirect evidence	Brussels, BelgiumHQ checked Sep 3, 2026	51-200	127
	“AESA is a leading European management consultancy, providing technical assistance and project management services in Low and Middle income countries as well as in Transition…” Source: company website · checked Sep 3, 2026
8	CatalayIndirect evidence	BelgiumHQ checked Sep 3, 2026	51-200	94
	“Catalay is on a mission to build a highly skilled and loyal community of engineering consultants so we can partner up with our clients to accelerate their engineering transitions.” Source: company website · checked Sep 3, 2026
9	BsolutionsIndirect evidence	Gembloux, BelgiumHQ checked Sep 3, 2026	51-200	88
	“BSolutions is a multidisciplinary engineering and industrial architecture firm.” Source: company website · checked Sep 3, 2026
10	BM Engineering GroupPartial evidence	Kortrijk, BelgiumHQ checked Sep 3, 2026	51-200	85
	“BM Engineering is een studiebureau op mensenmaat dat gebouwen en infrastructuur ontwerpt voor klanten in de private en de publieke sector.” Source: company website · checked Sep 3, 2026
11	Methis ConsultingIndirect evidence	Antwerpen, BelgiumHQ checked Sep 3, 2026	51-200	75
	“Who are we?” Source: company website · checked Sep 3, 2026
12	Bureau D Etudes LemaireIndirect evidence	Grace-Hollogne, BelgiumHQ checked Sep 3, 2026	51-200	74
	“Le bureau d’études Lemaire a été fondé par Frédéric Lemaire, ingénieur civil en construction.” Source: company website · checked Sep 3, 2026
13	M-GineersIndirect evidence	Leuven, BelgiumHQ checked Sep 3, 2026	51-200	66
	“M-gineers (formerly known as Macobo-Stabo) Smart engineering op het ritme van een maatschappij in beweging.” Source: company website · checked Sep 3, 2026
14	Abetec Architecten & Ingenieurs NVIndirect evidence	Zele, BelgiumHQ checked Sep 3, 2026	51-200	54
	“ABETEC architects & engineers is a multidisciplinary architecture and engineering firm that holds a leading position in the field of professional services in the building industry.” Source: company website · checked Sep 3, 2026
15	Arcade GroepIndirect evidence	Kontich, BelgiumHQ checked Sep 3, 2026	51-200	52
	“Arcade is een multidisciplinair bouwkundig studiebureau, al meer dan 30 jaar actief in diverse sectoren.” Source: company website · checked Sep 3, 2026
16	ELDIndirect evidence	Antwerpen, BelgiumHQ checked Sep 3, 2026	51-200	41
	“We are a European, independent multi-disciplinary firm of architects, engineers, consultants, technical specialists, project managers & cost consultants.” Source: company website · checked Sep 3, 2026
17	Arch & TecoIndirect evidence	9000, BelgiumHQ checked Sep 3, 2026	51-200	39
	“ARCH & TECO is an integrated full-service architecture and engineering group, founded in 1976, with offices in Ghent, Brussels, Jabbeke and Tielt.” Source: company website · checked Sep 3, 2026
18	D A NVPartial evidence	Halle, BelgiumHQ checked Sep 3, 2026	11-50	39
	“D+A Consult is als studie- en ingenieursbureau, een “one stop solution provider” voor projecten op vlak van Ruimtelijke Planning, Bouw en Infrastructuur.” Source: company website · checked Sep 3, 2026
19	TrajectIndirect evidence	Ghent, BelgiumHQ checked Sep 3, 2026	11-50	38
	“Together we pave the way towards a more sustainable mobility Traject Mobility Management is a consultancy in traffic and mobility with offices in Brussels and Ghent.” Source: company website · checked Sep 3, 2026
20	Sher Ingénieurs-ConseilsIndirect evidence	Vedrin, BelgiumHQ checked Sep 3, 2026	11-50	38
	“SHER Ingénieurs-Conseils, a Belgian engineering consultancy office and member of the Artelia Group, provides its services worldwide for projects related to water, human and animal…” Source: company website · checked Sep 3, 2026
21	DE Klerck Engineering SdkeIndirect evidence	Brugge, BelgiumHQ checked Sep 3, 2026	51-200	36
	“De Klerck Engineering (DKE) is een familiaal en multidisciplinair ingenieursbureau, opgericht in 1973.” Source: company website · checked Sep 3, 2026
22	Geonius BelgiëIndirect evidence	Herentals, BelgiumHQ checked Sep 3, 2026	11-50	34
	“Geonius is een middelgroot, interdisciplinair ingenieursbureau.” Source: company website · checked Sep 3, 2026

Showing 22 of 405 infrastructure consulting firms based in Belgium

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Infrastructure consulting firms based in Belgium at a glance

As of Sep 3, 2026

1-10Median size (employees)

BrusselsLargest hub · 32 HQs

268Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

249

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

31–60

158

61–90

1,200

90–180

676

180+

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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among infrastructure 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 an evidence 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, 2,038 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 3, 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.

Infrastructure consulting firms by metro

Infrastructure consulting firms in Brussels32

Frequently asked

How many infrastructure consulting firms are there based in Belgium?

RevenueBase identified 405 infrastructure 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?

Alten Belgium, headquartered in Saint Gilles, tops this list with the largest team on record.

Which city has the most infrastructure consulting firms?

Brussels leads with 32 headquartered companies, followed by Bruxelles (15) and Gent (11).

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 2,038 verified decision-maker contacts tracked across these 405 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 3, 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.