Company lists · Data refreshed September 2026

Top 25 Administrative consulting firms based in Belgium

RevenueBase identified 859 administrative consulting firms headquartered in Belgium as of September 2026 and tracks 5,994 professional contacts across them, including 1,339 with verified work emails and 162 with mobile numbers. Brussels is the largest hub.

This list covers administrative 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 28, 2026 86% judged on-target in blind review
859Companies
5,994Contacts tracked
1,339Verified emails
162Mobile numbers
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The 25 largest administrative consulting firms based in Belgium

Ranked by team size
Top 25 of 859 administrative consulting firms based in Belgium, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to administrative consulting firms: 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
1Indirect evidenceWemmel, BelgiumHQ checked Sep 28, 2026201-500559 contacts →

Indirect evidence

“Samen ondernemen, met kennis en visie.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceBrussels, BelgiumHQ checked Sep 28, 2026201-500362 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceSint-martens-latem, BelgiumHQ checked Sep 28, 202651-200140 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceKontich, BelgiumHQ checked Sep 28, 202651-20077 contacts →

Indirect evidence

“Een transparante missie.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceMechelen, BelgiumHQ checked Sep 28, 202651-20069 contacts →

Indirect evidence

“Junto is een dynamisch en innovatief bedrijf dat young potentials met de juiste begeleiding en coaching boven zichzelf laat uitstijgen.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceRégion Wallonne, BelgiumHQ checked Sep 28, 202651-20048 contacts →

Indirect evidence

“Choisir thg comme cabinet de conseil en fiscalité et en droit des affaires, c’est opter pour la qualité et la sécurité.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceBruges And Brussels, BelgiumHQ checked Sep 28, 202611-5044 contacts →

Partial evidence

“Trusted advisors in accountancy | tax | legal | corporate finance | estate planning Van Reybrouck is an independent consulting firm with offices in Bruges and Brussels.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceBelgiumHQ checked Sep 28, 2026201-50041 contacts →

Partial evidence

“JooS consulting, is consulting.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceRhode-st-genese (near Brussels), BelgiumHQ checked Sep 28, 2026n/a38 contacts →

Indirect evidence

“Rosinski & Company’s mission is to help leaders, teams and organizations unleash their human potential to achieve high performance together with high fulfillment.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceLochristi, BelgiumHQ checked Sep 28, 202611-5037 contacts →

Partial evidence

“Stanwick is an independent management consulting firm that advises national and international companies in their growth and transition.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceZwevegem, BelgiumHQ checked Sep 28, 202611-5034 contacts →

Indirect evidence

“Consultes is een allround partner voor bedrijven op vlak van milieu, preventie, energie en duurzaamheid.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceZwijnaarde, BelgiumHQ checked Sep 28, 202611-5033 contacts →

Indirect evidence

“People are not resources.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceBrussels, BelgiumHQ checked Sep 28, 202611-5032 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceWijgmaal, BelgiumHQ checked Sep 28, 202611-5029 contacts →

Indirect evidence

“Poolstok werpt een nieuw licht op Personeel en Organisatie Meer dan 330 Vlaamse openbare organisaties rekenen op de expertise van Poolstok bij de professionalisering van hun…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceGent, BelgiumHQ checked Sep 28, 202611-5027 contacts →

Indirect evidence

“At Common Ground, we manage the process, provide strategic advice, and guide you through the transition.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceAuderghem, BelgiumHQ checked Sep 28, 202611-5027 contacts →

Partial evidence

“Xirius Public is a niche law firm, specialized in all branches of public and administrative law with a great history going back to the 1960’s.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceB-9220 Hamme, BelgiumHQ checked Sep 28, 202611-5023 contacts →

Indirect evidence

“aternio is een full-service advieskantoor voor finance en legal oplossingen aternio heeft een hart dat klopt voor ondernemers, idealisten en creatievelingen.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceBrussels, BelgiumHQ checked Sep 28, 202611-5022 contacts →

Partial evidence

“ARCTURUS GROUP is a consulting firm specialized in: 1.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceBrussels, BelgiumHQ checked Sep 28, 202611-5017 contacts →

Partial evidence

“Mavence is a global recruitment and organizational consulting firm specializing fully in Corporate Affairs functions.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceBrussels, BelgiumHQ checked Sep 28, 202611-5016 contacts →

Indirect evidence

“With offices in Brussels and Madrid, ianusGroup for sustainable businesses offers tailor-made strategic solutions to private companies, trade associations, not-for profit…”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceLouveigné, BelgiumHQ checked Sep 28, 202611-5015 contacts →

Indirect evidence

“GALLYS a pour mission d'accompagner ses clients dans leur développement, de les aider à dynamiser la gestion de leur entreprise, de les conseiller dans l'organisation des…”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceFlanders, BelgiumHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“Wave Group is a service company that provides its expertise to start ups, SME's and large companies.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceAntwerp, BelgiumHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“Orca Solutions is a dynamic team of high-performance consultants who are driven by a shared commitment to delivering unparalleled solutions and advice to our clients.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceBelgiumHQ checked Sep 28, 202651-20013 contacts →

Indirect evidence

“Founded in 2011, Kronos Group has experienced continuous expansion and is now a team that stands strong with +120 skilled consultants.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceLiège, BelgiumHQ checked Sep 28, 202611-5012 contacts →

Indirect evidence

“ISIRO Fiduciaire + conseil Cabinet comptable et bureau de conseil pour les indépendants, PME et pour le secteur public.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 859 administrative consulting firms based in Belgium

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Administrative consulting firms based in Belgium at a glance

As of Sep 28, 2026
22.3%Verified-email coverage
2.7%Mobile-number coverage
7.0Average contacts per company
1-10Median size (employees)
5.1%Largest-city concentration · Brussels
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
759
11-50
71
51-200
11
201-500
9
501-1,000
1
1,001-5,000
2

Freshness & accuracy

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

Email last verified

Median 31.0d

Company record updated

Median 94.0d

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 administrative consulting firms, 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 “administrative consulting firms”. 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 administrative consulting firms), 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 administrative 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 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, 1,339 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 28, 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 administrative consulting firms, 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 administrative consulting firms are there based in Belgium?

RevenueBase identified 859 administrative 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?

VGD, headquartered in Wemmel, tops this list with the largest team on record.

Which city has the most administrative consulting firms?

Brussels leads with 44 headquartered companies, followed by Bruxelles (38) and Antwerpen (25).

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 1,339 verified decision-maker contacts tracked across these 859 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 28, 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.