Company lists · Data refreshed September 2026
Top 23 IT consulting firms based in Belgium
RevenueBase identified 1,469 IT consulting firms headquartered in Belgium as of September 2026 and tracks 27,698 professional contacts across them, including 9,641 with verified work emails and 533 with mobile numbers. Brussels is the largest hub.
This list covers IT 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 4, 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.
The 23 largest IT consulting firms based in Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,743 | ||||
“WHAT do we do?” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,613 | ||||
“Uncovering a world of opportunity together.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 771 | ||||
“Inetum-Realdolmen is part of the international Inetum Group.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 498 | ||||
“We nemen moderne ondernemingen alle IT-stress rond software en infrastructuur uit handen gaande van advies, over implementatie tot onderhoud.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 457 | ||||
“Accenture is a leading solutions and services company that helps the world’s leading enterprises reinvent by building their digital core and unleashing the power of AI to create…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 446 | ||||
“AE is a "one stop" consultancy company specialising in digital transformation.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 359 | ||||
“BHC is a professional IT Services company.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 348 | ||||
“Cheops is an industry-leading provider of IT & Business Technology Services.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 288 | ||||
“Your organization deserves a partner who truly understands digital transformation.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 242 | ||||
“Hi, we’re Tobania, your trusted partner in Business and Technology Consulting, driving the forefront of digital transformation by valorising your business, data and technology.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 201 | ||||
“At Amista, we’re your no-nonsense business and technology partner.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 189 | ||||
“Wavenet is a growing ICT company providing cutting-edge IT services and solutions based on the latest technologies.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 188 | ||||
“Tailoring IT Solutions for Your Business Welcome to Xylos, where we empower your business with customized IT solutions.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 183 | ||||
“With over 25 years of experience and a team of 185 experts, we support more than 900 businesses in their digital transformation, securing their environments and developing their…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 151 | ||||
“As an IT service provider, NTX believes that you should be able to work with IT without worry.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 131 | ||||
“We are the point of reference in the IT market for the pioneering companies ready to leverage new technological & digital projects, to embrace innovation and to evolve their…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 123 | ||||
“Transform Your Business for the Digital Age In 2025 we're guiding more than 50 enterprises in Belgium, Netherlands and Germany through successful digital transformations.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 120 | ||||
“Met meer dan 40 jaar ervaring in de IT-sector staat Dynamate klaar om u te ondersteunen bij het ontketenen van het volledige potentieel van uw bedrijf, met een breed scala aan…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 119 | ||||
“We are Cream by Audensiel, a dynamic multi-skilled consultancy company that seeds Entreprise Agility.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 114 | ||||
“Elmos selects driven and experienced ICT-consultants for companies looking for ICT-solutions and services.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 96 | ||||
“At AllPhi, we’re more than just a software consultancy company, we’re your partner in building intelligent, future-ready solutions.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 92 | ||||
“For the last 30 years, Contraste Europe has been successfully building strong relations with its clients.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 23 of 1,469 IT consulting firms based in Belgium
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IT consulting firms based in Belgium at a glance
As of Sep 4, 2026Companies by employee count
Verified emails by last verification
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 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 “IT 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 IT 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, 9,641 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 4, 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.
IT consulting firms by metro
Frequently asked
How many IT consulting firms are there based in Belgium?
RevenueBase identified 1,469 IT 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?
Delaware Belux, headquartered in Kortrijk, tops this list with the largest team on record.
Which city has the most IT consulting firms?
Brussels leads with 108 headquartered companies, followed by Bruxelles (55) and Antwerpen (31).
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 9,641 verified decision-maker contacts tracked across these 1,469 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 4, 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.