Company lists · Data refreshed September 2026

Top 25 IT infrastructure modernization companies based in Belgium

RevenueBase identified 127 IT infrastructure modernization companies headquartered in Belgium as of September 2026 and tracks 2,007 professional contacts across them, including 506 with verified work emails. Brussels is the largest hub.

This list covers IT infrastructure modernization companies 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
127Companies
2,007Contacts tracked
506Verified emails
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The 25 largest IT infrastructure modernization companies based in Belgium

Ranked by team size
Top 25 of 127 IT infrastructure modernization companies 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 IT infrastructure modernization companies: 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
1Strong evidenceLochristi, BelgiumHQ checked Sep 20, 202651-200498 contacts →

Strong evidence

“We nemen moderne ondernemingen alle IT-stress rond software en infrastructuur uit handen gaande van advies, over implementatie tot onderhoud.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceAntwerp, BelgiumHQ checked Sep 20, 2026201-500186 contacts →

Partial evidence

“Tailoring IT Solutions for Your Business Welcome to Xylos, where we empower your business with customized IT solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceHasselt, BelgiumHQ checked Sep 20, 202651-20067 contacts →

Partial evidence

“WE FIX-IT, established in 2010, is a consulting company specializing in IT and Technical Services.”

Source: RevenueBase Database · checked Sep 20, 2026
4Strong evidenceBrussels, BelgiumHQ checked Sep 20, 202651-20058 contacts →

Strong evidence

“Empower your business with seamless IT Modernization, fortify your future with cutting-edge Cybersecurity, and unlock potential with AI and Data-driven insights.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceEvere Brussels, BelgiumHQ checked Sep 20, 2026201-50044 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceZaventem, BelgiumHQ checked Sep 20, 202611-5039 contacts →

Indirect evidence

“Mission-critical software for European enterprises.”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceAlken, BelgiumHQ checked Sep 20, 202611-5038 contacts →

Partial evidence

“Worry-free business starts with reliable IT.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceSint-martens-latem, BelgiumHQ checked Sep 20, 202611-5037 contacts →

Partial evidence

“ideeds excels in digital transformation and bridges the gap between IT and business.”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceKontich, BelgiumHQ checked Sep 20, 202611-5036 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceLouvain-la-neuve, BelgiumHQ checked Sep 20, 202611-5035 contacts →

Partial evidence

“Based in Louvain-la-Neuve, Belgium, bstorm is an IT services company helping organisations embrace digital change with clarity and impact.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceSint-Niklaas, BelgiumHQ checked Sep 20, 202651-20033 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
12Strong evidenceHerenthout, BelgiumHQ checked Sep 20, 2026n/a31 contacts →

Strong evidence

“Digital Transformer Help companies getting more out their IT infrastructure and data”

Source: RevenueBase Database · checked Sep 20, 2026
13Strong evidenceBrussels, BelgiumHQ checked Sep 20, 202651-20025 contacts →

Strong evidence

“For more than 25 years, ITS Group has developed a unique expertise in IT infrastructure and operations.”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidenceEdegem, BelgiumHQ checked Sep 20, 202611-5024 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceGenk, BelgiumHQ checked Sep 20, 202611-5023 contacts →

Partial evidence

“Wij bouwen al meer dan 30 jaar bruggen tussen de bedrijfswereld en IT.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceKontich, BelgiumHQ checked Sep 20, 202611-5021 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceBrasschaat, BelgiumHQ checked Sep 20, 202611-5021 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceWavre, BelgiumHQ checked Sep 20, 202611-5021 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceOlen, BelgiumHQ checked Sep 20, 202611-5020 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceChaineux, BelgiumHQ checked Sep 20, 202611-5019 contacts →

Indirect evidence

“Altiore, un seul partenaire pour tous vos besoins informatiques.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceBrussels, BelgiumHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

“BIG WATER CONSULTING (BWC), we have been helping clients deliver successful projects.”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceKontich, BelgiumHQ checked Sep 20, 202611-5016 contacts →

Partial evidence

“Anubex was a software company providing core tools, know-how, and support for complex mainframe modernization and migration projects.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceKortrijk, BelgiumHQ checked Sep 20, 202611-5015 contacts →

Indirect evidence

“Hoe zorg je dat software niet alleen vandaag werkt, maar ook klaar is voor wat morgen brengt?”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceBrussels, BelgiumHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

“NaN Clouds is an enterprise managed services and software development company.”

Source: RevenueBase Database · checked Sep 20, 2026
25Strong evidenceGent, BelgiumHQ checked Sep 20, 20261-1010 contacts →

Strong evidence

“Welcome to CloudSisters – Redefining the Future of IT Infrastructure management.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 127 IT infrastructure modernization companies based in Belgium

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IT infrastructure modernization companies based in Belgium at a glance

As of Sep 20, 2026
25.2%Verified-email coverage
15.8Average contacts per company
1-10Median size (employees)
4.7%Largest-city concentration · Brussels
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
80
11-50
35
51-200
6
201-500
4
10001+
1

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 127 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 IT infrastructure modernization companies, 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 “IT infrastructure modernization companies”. 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 IT infrastructure modernization companies), 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 IT infrastructure modernization companies, 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, 506 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 IT infrastructure modernization companies, 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 IT infrastructure modernization companies are there based in Belgium?

RevenueBase identified 127 IT infrastructure modernization companies 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?

SDE, headquartered in Lochristi, tops this list with the largest team on record.

Which city has the most IT infrastructure modernization companies?

Brussels leads with 6 headquartered companies, followed by Bruxelles (5) and Kontich (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 506 verified decision-maker contacts tracked across these 127 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.