Company lists · Data refreshed September 2026

Top 18 Financial audit companies based in Belgium

RevenueBase identified 33 financial audit companies headquartered in Belgium as of September 2026 and tracks 1,373 professional contacts across them, including 883 with verified work emails. Tournai is the largest hub.

This list covers financial audit 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
33Companies
1,373Contacts tracked
883Verified emails
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The 18 largest financial audit companies based in Belgium

Ranked by team size
Top 18 of 33 financial audit 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 financial audit 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceZaventem, BelgiumHQ checked Sep 20, 20261,001-5,000936 contacts →

Indirect evidence

“At BDO, we believe in empowering organisations and people to achieve sustainable growth and realise their full potential.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceBrussels, BelgiumHQ checked Sep 20, 2026201-500221 contacts →

Partial evidence

“Forvis Mazars provides audit, assurance, tax, advisory, and consulting services globally with a dedication to delivering an unmatched client experience.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceBruxelles, BelgiumHQ checked Sep 20, 202611-5032 contacts →

Indirect evidence

“DGST compte dix-sept Réviseurs d’entreprises et plus de vingt collaborateurs expérimentés.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceWatermael-boitsfort, BelgiumHQ checked Sep 20, 202611-5025 contacts →

Partial 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
5Indirect evidenceNaninne, BelgiumHQ checked Sep 20, 202611-5020 contacts →

Indirect evidence

“Révisorat d’entreprises et autres activités compatibles.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceTournai, BelgiumHQ checked Sep 20, 20261-1020 contacts →

Partial evidence

Audit, réviseur d’entreprises.”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceBrussel, BelgiumHQ checked Sep 20, 202611-5019 contacts →

Partial evidence

“For more than 50 years, Groupe Audit has stood for quality, precision and integrity in audit.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceLiège, BelgiumHQ checked Sep 20, 20261-1010 contacts →

Indirect evidence

“La SRL 3R, LEBOUTTE & C° est une société de révision établie à Liège.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceRoeselare, BelgiumHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“Auditas Bedrijfsrevisoren is een bedrijfsrevisorenkantoor gelegen in de Boomgaardstraat 14, 8800 Roeselare, België.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceLonderzeel, BelgiumHQ checked Sep 20, 202611-509 contacts →

Partial evidence

“ACCAL is providing Audit, Accounting and Tax Services to all types of companies: small SME, Large Multinationals and government agencies.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceLokeren, BelgiumHQ checked Sep 20, 202611-505 contacts →

Indirect evidence

“Accountantskantoor Helon is a member of the Belgian Institute of Accountants and Tax Consultants (IAB) and was founded in 1979 by Etienne Helon.”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceWavre, BelgiumHQ checked Sep 20, 20261-105 contacts →

Partial evidence

“BE AUDIT est un cabinet de réviseurs d'entreprises qui se positionne comme un cabinet à taille humaine et soucieux de fournir une approche personnalisée à ses clients.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceSchoten, BelgiumHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

“FIDUCTO is een accountantskantoor gevestigd te Schoten, Reebokdreef 3”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceGozée, BelgiumHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“Based in Charleroi and Genappe, AUDICIA is an independent firm of Certified Public Accountants.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceOostkamp, BelgiumHQ checked Sep 20, 202611-501 contacts →

Indirect evidence

“Impaccta is an accounting company based out of Brugse Steenweg 174 2-01, Maldegem, Belgium and Hertsbergsestraat 34, 8020 Oostkamp”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceLouvain-la-neuve, BelgiumHQ checked Sep 20, 20261-101 contacts →

Partial evidence

“Created in 2011 by Christophe Quiévreux, a former Deloitte partner with more than 20 years of experience, «Quiévreux Audit Services » is the "premier" professional service firm…”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceBrussels, BelgiumHQ checked Sep 20, 20261-101 contacts →

Partial evidence

“We are a certified audit firm that is exclusively dedicated to audits of EU grants.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceLedegem, BelgiumHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“Maca Consulting is an accounting company based out of 2A Smissestraat, Ledegem, Belgium.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 18 of 33 financial audit companies based in Belgium

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Financial audit companies based in Belgium at a glance

As of Sep 20, 2026
64.3%Verified-email coverage
41.6Average contacts per company
1-10Median size (employees)
6.1%Largest-city concentration · Tournai
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
13
201-500
1
1,001-5,000
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 33 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 financial audit 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 “financial audit 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 financial audit 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 financial audit 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, 883 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 financial audit 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 financial audit companies are there based in Belgium?

RevenueBase identified 33 financial audit 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?

BDO Belgium, headquartered in Zaventem, tops this list with the largest team on record.

Which city has the most financial audit companies?

Tournai leads with 2 headquartered companies, followed by Wavre (2) and Acosse (1).

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 883 verified decision-maker contacts tracked across these 33 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.