Company lists · Data refreshed November 2026

Top 25 IT infrastructure contractors based in Belgium

RevenueBase identified 142 company matches for IT infrastructure contractors associated with Belgium as of November 2026 and tracks 2,106 professional contacts across them, including 987 with verified work emails. Brussels is the largest hub.

This list covers company matches for IT infrastructure contractors associated with Belgium, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
142Companies
2,106Contacts tracked
987Verified emails
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The 25 largest IT infrastructure contractors based in Belgium

Ranked by team size
Top 25 of 142 company matches for IT infrastructure contractors based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMechelen, BelgiumHQ recorded Nov 6, 20261,001-5,000391 contacts →

Exact match

“Unit-T provides installation and maintenance services to the telecom, ICT, energy and security industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAntwerp, BelgiumHQ recorded Nov 6, 2026201-500183 contacts →

Exact match

“We are Xylos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchVorst, BelgiumHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“At ASP, we strive to simplify and strengthen IT operations for organizations by combining proven technologies with modern cloud solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLasne, BelgiumHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“Systemat is the trusted IT service provider for demanding customers seeking cutting-edge Cloud, infrastructure, cybersecurity, print, and document management technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAlken, BelgiumHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“Worry-free business starts with reliable IT.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchEvere Brussels, BelgiumHQ recorded Nov 6, 2026201-50040 contacts →

Exact match

“At Proximus NXT SpearIT we help companies work smarter, safer and faster.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAntwerp, BelgiumHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“Every company wants to secure a future-proof digital transformation at speed.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGrâce-hollogne, BelgiumHQ recorded Nov 6, 20261,001-5,00031 contacts →

Exact match

“Intégrateur de systèmes, Uptime ICT, est le pendant francophone d’Uptime Group (membre du groupe Cronos).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchKontich, BelgiumHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Rank1 focuses on ICT infrastructure: Rank1 a new company dedicated to the design, implementation and management of systems and networks started business under the wing of business…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLokeren, BelgiumHQ recorded Nov 6, 2026201-50027 contacts →

Exact match

“Sinds onze oprichting in 2006, zij wij als TASOZ uitgegroeid tot een betrouwbare partner voor ondergrondse infrastructuurwerken.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchVillers-le-bouillet, BelgiumHQ recorded Nov 6, 2026201-50025 contacts →

Exact match

“Routz designs, implements and maintains complex and dynamic IT network infrastructure environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWavre, BelgiumHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“advensys : Excellence informatique depuis plus de 25 ans.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchEdegem, BelgiumHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“IT-infrastructuur voor uw digitale groei Bij Neoria bouwen we al meer dan 15 jaar toekomstbestendige IT-infrastructuren.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchKontich, BelgiumHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“FLEXAMIT is the ICT partner for any type of organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchOlen, BelgiumHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Al sinds 2012 is Office-IT druk bezig met tal van activiteiten om bedrijven te laten groeien!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchKapellen, BelgiumHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Bij IXT doen we onze slogan ‘sterk in betaalbare IT’ graag alle eer aan.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSchoten, BelgiumHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Domotion is a certified expert in connectivity infrastructure and field services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBrasschaat, BelgiumHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Core ICT is an IT company that provides a range of IT services to businesses and organizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBruges, BelgiumHQ recorded Nov 6, 20261-1021 contacts →

Exact match

“Bring your network to a new dimension”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSint-Niklaas, BelgiumHQ recorded Nov 6, 202651-20020 contacts →

Exact match

“SDP is an IT company that has been a major player in the international market for almost 40 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLoncin, BelgiumHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Actif depuis dans l’intégration réseau, NETsite intervient dans la création et la maintenance des infrastructures informatiques.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNivelles, BelgiumHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“BDE-Group couvre toutes les activités informatiques allant de la fourniture de matériel à la mise en place et la gestion complète de votre réseau, physique ou dans le cloud.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchKasterlee, BelgiumHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“CISA biedt IT-support en services voor kleine en grote organisaties over alle industrieën heen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchTemse, BelgiumHQ recorded Nov 6, 202611-5017 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBrussels, BelgiumHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“Telservice supports the Business Agility and Development of its Clients through flexible, qualitative and competitive Subcontracting, Staffing and Outsourcing Solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 142 IT infrastructure contractors based in Belgium

See the full list, filter by size, metro and specialty, and access 987 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT infrastructure contractors based in Belgium at a glance

As of Nov 6, 2026
46.9%Verified-email coverage
14.8Average contacts per company
1-10Median size (employees)
6.3%Largest-city concentration · Brussels
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
70
11-50
51
51-200
8
201-500
6
501-1,000
2
1,001-5,000
3

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 142 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Belgium whose business descriptions match “IT infrastructure contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 987 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT infrastructure contractors are there based in Belgium?

RevenueBase identified 142 company matches for IT infrastructure contractors associated with Belgium as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Unit-T tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT infrastructure contractors?

Brussels leads with 9 company records, followed by Genk (5) and Antwerp (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 987 professional contacts with verified work emails tracked across these 142 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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.