Company lists · Data refreshed November 2026

Top 25 Legacy system modernization consultants based in Belgium

RevenueBase identified 238 company matches for legacy system modernization consultants associated with Belgium as of November 2026 and tracks 2,242 professional contacts across them, including 595 with verified work emails. Brussels is the largest hub.

This list covers company matches for legacy system modernization consultants 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
238Companies
2,242Contacts tracked
595Verified emails
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The 25 largest legacy system modernization consultants based in Belgium

Ranked by team size
Top 25 of 238 company matches for legacy system modernization consultants 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 matchLochristi, BelgiumHQ recorded Nov 6, 202651-200520 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchWilsele, BelgiumHQ recorded Nov 6, 20261,001-5,000149 contacts →

Exact match

“At Ausy, we’ve been providing technological solutions for over 30 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWesterlo, BelgiumHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“At AllPhi, we’re more than just a software consultancy company, we’re your partner in building intelligent, future-ready solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchZele, BelgiumHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“Addestino is a technology consulting company, working on the edge of business and technology, be it for strategy & innovation or digital transformation & implementation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchHasselt, BelgiumHQ recorded Nov 6, 202651-20063 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchGhent, BelgiumHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“We empower people.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBrussels & Antwerp, BelgiumHQ recorded Nov 6, 202651-20041 contacts →

Exact match

“Wemanity Reply is a consulting and delivery firm specialized in technological, organizational, and cultural transformation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSint-martens-latem, BelgiumHQ recorded Nov 6, 202611-5037 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchTienen, BelgiumHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Welcome to MADELLO CONSULTING!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchTorhout, BelgiumHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“CodeKick helpt groeiende kmo’s om processen te verbeteren, systemen te verbinden en nieuwe technologie praktisch in te zetten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Are you considering or planning changes to your business processes, organisation, systems and technology?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchNamur, BelgiumHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Myrmidons IT consulting offers advice and solutions to help businesses implement and use technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchKontich, BelgiumHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Archers provides consulting expertise to design, build and evolve the integration landscape of customers to meet the challenges of today’s connected companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchIsnes, BelgiumHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“DigiWall vous conseille et accompagne votre transformation digitale.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact 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
16Exact matchAartselaar, BelgiumHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Roots is a long term partner for your business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“ATCON is a Belgium-based IT consulting firm established with a vision to empower businesses using the latest technologies and provide best-in-class services to our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMont-saint-guibert, BelgiumHQ recorded Nov 6, 20261-1018 contacts →

Exact match

“Près de 50% des dirigeants considèrent que le numérique est un vecteur stratégique de croissance pour leur entreprise.* Mais ils ne font rien - Par manque de compréhension des…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAntwerp, BelgiumHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“We are an IT consulting company based in the heart of Antwerp.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchEtterbeek, BelgiumHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Our mission embodies the two main objectives of our win-win strategy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchKontich, BelgiumHQ recorded Nov 6, 202611-5017 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWavre, BelgiumHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Pulsar Consulting is an Information Technology (IT) services company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchKortrijk, BelgiumHQ recorded Nov 6, 202611-5015 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLummen, BelgiumHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“Make People Shine!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLaarne, BelgiumHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Incrius is voor zijn klanten een IT-sparring-partner die in alles een no-nonsense en 100% result-driven aanpak hanteert.”

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

Showing 25 of 238 legacy system modernization consultants based in Belgium

See the full list, filter by size, metro and specialty, and access 595 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Legacy system modernization consultants based in Belgium at a glance

As of Nov 6, 2026
26.5%Verified-email coverage
9.4Average contacts per company
1-10Median size (employees)
14.7%Largest-city concentration · Brussels
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
162
11-50
53
51-200
14
201-500
2
501-1,000
1
1,001-5,000
3
5,001-10,000
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 238 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 “legacy system modernization consultants” 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 595 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.

Legacy system modernization consultants by metro

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 “legacy system modernization consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many legacy system modernization consultants are there based in Belgium?

RevenueBase identified 238 company matches for legacy system modernization consultants 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?

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

Which city has the most legacy system modernization consultants?

Brussels leads with 35 company records, followed by Antwerp (12) and Liege (12).

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 595 professional contacts with verified work emails tracked across these 238 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.