Company lists · Data refreshed September 2026

Top 25 Professional service companies based in Belgium

Name: Professional service companies based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 211 companies tracked

RevenueBase identified 211 professional service companies headquartered in Belgium as of September 2026 and tracks 3,927 professional contacts across them, including 1,265 with verified work emails. Bruxelles is the largest hub.

This list covers professional service 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

211Companies

3,927Contacts tracked

1,265Verified emails

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The 25 largest professional service companies based in Belgium

Ranked by team size

Top 25 of 211 professional service 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 professional service 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	VGD	Indirect evidence	Wemmel, BelgiumHQ checked Sep 20, 2026	201-500	559 contacts →
	Indirect evidence “Samen ondernemen, met kennis en visie.” Source: RevenueBase Database · checked Sep 20, 2026
2	VAN Havermaet	Indirect evidence	Hasselt, BelgiumHQ checked Sep 20, 2026	201-500	272 contacts →
	Indirect evidence “UW RECHTERHAND Als ondernemer bent u maar zo sterk als de mensen die u omringen.” Source: RevenueBase Database · checked Sep 20, 2026
3	Baker Tilly Belgium	Indirect evidence	Brussel, BelgiumHQ checked Sep 20, 2026	201-500	220 contacts →
	Indirect evidence “Bij Baker Tilly bouwen we mee aan het groeiverhaal van ondernemers.” Source: RevenueBase Database · checked Sep 20, 2026
4	Finvision	Indirect evidence	Waregem, BelgiumHQ checked Sep 20, 2026	201-500	210 contacts →
	Indirect evidence “Our Talent.” Source: RevenueBase Database · checked Sep 20, 2026
5	Fiduciaire	Indirect evidence	Beaufays, BelgiumHQ checked Sep 20, 2026	n/a	198 contacts →
	Indirect evidence “Bonjour et bienvenue sur la page entreprise de la Fiduciaire au Carré - Une équipe dynamique à votre service- Assistance efficace et conseils individualisés tant aux personnes…” Source: RevenueBase Database · checked Sep 20, 2026
6	HLB Belgium	Indirect evidence	Watermael-boitsfort, BelgiumHQ checked Sep 20, 2026	51-200	63 contacts →
	Indirect evidence “HLB is gespecialiseerd in accountancy, audit, juridisch en fiscaal advies.” Source: RevenueBase Database · checked Sep 20, 2026
7	VAN DEN Neste	Indirect evidence	Huizingen - Beersel, BelgiumHQ checked Sep 20, 2026	51-200	48 contacts →
	Indirect evidence “Boekhouders - Fiscalisten • Sociaal dienstenkantoor • Belastingconsulent.” Source: RevenueBase Database · checked Sep 20, 2026
8	VAN Reybrouck	Indirect evidence	Bruges And Brussels, BelgiumHQ checked Sep 20, 2026	11-50	44 contacts →
	Indirect 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 20, 2026
9	BDO Global Financial Services	Indirect evidence	Brussels, BelgiumHQ checked Sep 20, 2026	n/a	44 contacts →
	Indirect evidence “BDO’s Global Financial Services Practice helps clients in the financial services sector succeed in a changing landscape that is marked by regulatory reform, disruptive technology…” Source: RevenueBase Database · checked Sep 20, 2026
10	LIBRA	Indirect evidence	Ans, BelgiumHQ checked Sep 20, 2026	11-50	42 contacts →
	Indirect evidence “Le groupe LIBRA a pour objectif de fournir un large panel de services juridico-financiers transversaux à l’attention des entreprises dans des matières, telles que…” Source: RevenueBase Database · checked Sep 20, 2026
11	Accountants Lauwers	Indirect evidence	Ronse, BelgiumHQ checked Sep 20, 2026	11-50	34 contacts →
	Indirect evidence “Accountants Lauwers heeft vestigingen in Ronse, Frasnes, Gent en Kortrijk en stelt naast 6 vennoten, 40 medewerkers tewerk.” Source: RevenueBase Database · checked Sep 20, 2026
12	Sogenam	Indirect evidence	Namur, BelgiumHQ checked Sep 20, 2026	11-50	30 contacts →
	Indirect evidence “Sogenam, bien plus qu’une fiduciaire.” Source: RevenueBase Database · checked Sep 20, 2026
13	Storme, Leroy, VAN Parys Advocatenassociatie	Indirect evidence	Gent, BelgiumHQ checked Sep 20, 2026	11-50	27 contacts →
	Indirect evidence “Storme, Leroy, Van Parys is een polyvalent advocatenkantoor te Gent dat zich kan steunen op een brede opgebouwde expertise doorheen decennia van adviesverlening en bijstand binnen…” Source: RevenueBase Database · checked Sep 20, 2026
14	UHY	Indirect evidence	Watermael-boitsfort, BelgiumHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “À propos de CDP Partners Depuis 2008, CDP Partners, fondé par des Réviseurs d'entreprises et Experts-Comptables indépendants, se démarque dans le secteur de l'audit et de la…” Source: RevenueBase Database · checked Sep 20, 2026
15	FMG	Indirect evidence	Watermael-boitsfort, BelgiumHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “La FIDUCIAIRE MONTGOMERY est votre partenaire pour les différents domaines liés aux aspects comptables, fiscaux, financiers et juridiques de votre entreprise.” Source: RevenueBase Database · checked Sep 20, 2026
16	Pyxis & CO	Indirect evidence	Brussels, BelgiumHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “Chez Pyxis & Co, nous croyons que le rôle du comptable va bien au-delà des chiffres.” Source: RevenueBase Database · checked Sep 20, 2026
17	Aternio	Indirect evidence	B-9220 Hamme, BelgiumHQ checked Sep 20, 2026	11-50	23 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 20, 2026
18	VM Consult Accountancy & TAX	Indirect evidence	Sint-niklaas, BelgiumHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “2009 was een groots jaar voor Evert Van Mele, toen hij na jarenlange ervaring in de sector besloot om VM Consult op te richten te Sinaai.” Source: RevenueBase Database · checked Sep 20, 2026
19	Accratio	Indirect evidence	Mechelen, BelgiumHQ checked Sep 20, 2026	11-50	15 contacts →
	Indirect evidence “accratio is gespecialiseerd in drie verschillende domeinen binnen de vennootschapsrechtelijke sfeer.” Source: RevenueBase Database · checked Sep 20, 2026
20	Ecovis Acta Consult	Strong evidence	Brussels, BelgiumHQ checked Sep 20, 2026	11-50	12 contacts →
	Strong evidence “ECOVIS ACTA Consult is a professional services provider primarily active in accounting, tax law and corporate law.” Source: RevenueBase Database · checked Sep 20, 2026
21	VP Accountants & Belastingconsulenten	Indirect evidence	Keerbergen, BelgiumHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Als ondernemer wilt u een accountant die meer doet dan alleen financiële gegevens administratief verwerken.” Source: RevenueBase Database · checked Sep 20, 2026
22	ISIRO	Indirect evidence	Liège, BelgiumHQ checked Sep 20, 2026	11-50	12 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 20, 2026
23	Trigone-Conseil S.A	Strong evidence	Beaufays, BelgiumHQ checked Sep 20, 2026	11-50	11 contacts →
	Strong evidence “Les tâches comptables et administratives liées à la gestion d’une profession libérale, d’une activité d’indépendant ou d’une société sont souvent complexes et chronophages.” Source: RevenueBase Database · checked Sep 20, 2026
24	D&v Bedrijfsadviseurs	Indirect evidence	Lochristi (beervelde), BelgiumHQ checked Sep 20, 2026	1-10	11 contacts →
	Indirect evidence “D&V Bedrijfsadviseurs (voluit : De Pauw & Van Rysseghem Bedrijfsadviseurs, Accountants & Belastingconsulenten) is een kantoor van accountants en belastingadviseurs.” Source: RevenueBase Database · checked Sep 20, 2026
25	Detrembleur & Partners	Indirect evidence	Malmedy, BelgiumHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “2024: Pour ses 60 ans, la société Dandrifosse – Detrembleur & Partners opère un tournant important de son histoire en fusionnant ses activités avec la S.A.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: professional service companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names professional service companies.
Partial evidence: Its own public description names part of professional service companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name professional service companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 211 professional service companies based in Belgium

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Professional service companies based in Belgium at a glance

As of Sep 20, 2026

32.2%Verified-email coverage

18.6Average contacts per company

1-10Median size (employees)

3.8%Largest-city concentration · Bruxelles

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

148

11-50

51-200

201-500

1,001-5,000

10001+

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 211 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 professional service 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 “professional service 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 professional service 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 professional service 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, 1,265 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 professional service 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 professional service companies are there based in Belgium?

RevenueBase identified 211 professional service 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?

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

Which city has the most professional service companies?

Bruxelles leads with 8 headquartered companies, followed by Antwerpen (5) and Brussels (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 1,265 verified decision-maker contacts tracked across these 211 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.