Company lists · Data refreshed September 2026

Top 25 B2B consultancies based in Belgium

RevenueBase identified 2,497 company matches for B2B consultancies associated with Belgium as of September 2026 and tracks 20,789 professional contacts across them, including 6,521 with verified work emails and 714 with mobile numbers. Brussels is the largest hub.

This list covers company matches for B2B consultancies 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 September 23, 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 Sep 23, 2026 How this list was built
2,497Companies
20,789Contacts tracked
6,521Verified emails
714Mobile numbers
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The 25 largest B2B consultancies based in Belgium

Ranked by team size
Top 25 of 2,497 company matches for B2B consultancies based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 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 matchBrussels, BelgiumHQ recorded Sep 23, 20261,001-5,0002,186 contacts →

Exact match

“As people, organizations and societies embrace change at pace, its leaders must anticipate, innovate and transform ever faster.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2Exact matchNiel, BelgiumHQ recorded Sep 23, 2026501-1,000688 contacts →

Exact match

“United Consulting™, consultancy, not as you know it.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3Exact matchSaint Gilles, BelgiumHQ recorded Sep 23, 2026501-1,000627 contacts →

Exact match

“ALTEN is a group of 57 professionals present all over the world and counts more than 88% of its employees being engineers.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4Exact matchWemmel, BelgiumHQ recorded Sep 23, 2026201-500559 contacts →

Exact match

“Samen ondernemen, met kennis en visie.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5Exact matchBrussels, BelgiumHQ recorded Sep 23, 2026201-500362 contacts →

Exact match

“We advise companies, policymakers, regulators and lawyers on any economic issue connected with competition, finance or regulation.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6Exact matchAntwerp, BelgiumHQ recorded Sep 23, 202651-200284 contacts →

Exact match

“Tec is a technical consultancy agency.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7Exact matchBrussels, BelgiumHQ recorded Sep 23, 2026201-500274 contacts →

Exact match

“Most organizations are facing major transformation challenges due to market, technological, social or political factors.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8Exact matchAntwerp, BelgiumHQ recorded Sep 23, 2026201-500268 contacts →

Exact match

“Een carrière als Project Consultant?”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9Exact match8500, BelgiumHQ recorded Sep 23, 202651-200254 contacts →

Exact match

“We zijn er voor Sales door Sales.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10Exact matchStrombeek-bever, BelgiumHQ recorded Sep 23, 2026501-1,000242 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11Exact matchWilsele, BelgiumHQ recorded Sep 23, 20261,001-5,000160 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12Exact matchAntwerp, BelgiumHQ recorded Sep 23, 2026201-500159 contacts →

Exact match

“USG Professionals combineert de expertise en ambities van hoog opgeleide professionals met de dagelijkse uitdagingen die bedrijven trotseren op vlak van 7 vakgebieden- Engineering…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13Exact matchSint-martens-latem, BelgiumHQ recorded Sep 23, 202651-200140 contacts →

Exact match

“Möbius supports organisations by designing and implementing the best business solutions at their strategic moments.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14Exact matchMachelen, BelgiumHQ recorded Sep 23, 202651-200130 contacts →

Exact match

“At The House of Marketing, we help organizations transition towards profitable, sustainable growth through strategic marketing consulting and interim management.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15Exact matchAntwerp, BelgiumHQ recorded Sep 23, 2026201-500123 contacts →

Exact match

“Craftzing helps ambitious organisations turn strategic ambition into working reality.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16Exact matchIeper, BelgiumHQ recorded Sep 23, 202651-200113 contacts →

Exact match

“Wij bieden een en/en-verhaal voor ondernemers Als sparringpartner zijn we essentieel om van jouw ondernemerschap een succes te maken.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17Exact matchBrussels, BelgiumHQ recorded Sep 23, 202651-200113 contacts →

Exact match

“We are Cream by Audensiel, a dynamic multi-skilled consultancy company that seeds Entreprise Agility.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18Exact matchAntwerp, BelgiumHQ recorded Sep 23, 2026n/a113 contacts →

Exact match

“Consultant in the field of hospitality, food, tourism and leisure.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19Exact matchBeringen, BelgiumHQ recorded Sep 23, 202651-200103 contacts →

Exact match

“DLV is a multiprofessional B2B consultancy company with 7 offices in Belgium, specialized in the agribusiness.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20Exact matchSchaerbeek, BelgiumHQ recorded Sep 23, 202611-5093 contacts →

Exact match

“Asist is a specialist IBM mainframe consulting practice.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21Exact matchMechelen, BelgiumHQ recorded Sep 23, 202651-20090 contacts →

Exact match

“HazelHeartwood guides human organizations through digital transformation.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22Exact matchBrussels, BelgiumHQ recorded Sep 23, 202611-5089 contacts →

Exact match

“Sales Consult is specialised in sales results improvement by different services approaches - Sales Consultancy - Outsourcing - Try & Hire - Insourcing projects - Temporary sales &…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23Exact matchMechelen, BelgiumHQ recorded Sep 23, 202651-20079 contacts →

Exact match

“Oxygen is a business consultancy firm with 100% focus on insurance.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24Exact matchMechelen, BelgiumHQ recorded Sep 23, 202651-20078 contacts →

Exact match

“BBC is a B2B creative agency.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25Exact matchKontich, BelgiumHQ recorded Sep 23, 202651-20077 contacts →

Exact match

“Een transparante missie.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase

Showing 25 of 2,497 B2B consultancies based in Belgium

See the full list, filter by size, metro and specialty, and access 6,521 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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B2B consultancies based in Belgium at a glance

As of Sep 23, 2026
31.4%Verified-email coverage
3.4%Mobile-number coverage
8.3Average contacts per company
1-10Median size (employees)
10.6%Largest-city concentration · Brussels
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
2,070
11-50
281
51-200
95
201-500
22
501-1,000
8
1,001-5,000
11
10001+
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 25.0d

Company record updated

Median 78.0d

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 “B2B consultancies” 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 6,521 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 September 23, 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 “B2B consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B consultancies are there based in Belgium?

RevenueBase identified 2,497 company matches for B2B consultancies associated with Belgium as of September 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?

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

Which city has the most B2B consultancies?

Brussels leads with 264 company records, followed by Antwerp (141) and Ghent (87).

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 6,521 professional contacts with verified work emails tracked across these 2,497 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 September 23, 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.