Company lists · Data refreshed September 2026

Top 25 501c3 accounting firms based in Belgium

RevenueBase identified 94 company matches for 501c3 accounting firms associated with Belgium as of September 2026 and tracks 385 professional contacts across them, including 161 with verified work emails. Brussels is the largest hub.

This list covers company matches for 501c3 accounting firms 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 27, 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 27, 2026 How this list was built
94Companies
385Contacts tracked
161Verified emails
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The 25 largest 501c3 accounting firms based in Belgium

Ranked by team size
Top 25 of 94 company matches for 501c3 accounting firms based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchWatermael-boitsfort, BelgiumHQ recorded Sep 27, 202611-5025 contacts →

Exact match

“La FIDUCIAIRE MONTGOMERY est votre partenaire pour les différents domaines liés aux aspects comptables, fiscaux, financiers et juridiques de votre entreprise.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchKortrijk, BelgiumHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“ACCOFISC is an accounting company based out of PRESIDENT KENNEDYPARK, 24, KORTRIJK, België, Belgium.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchOostduinkerke, BelgiumHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“Madou Vandromme Accountancy te Oostduinkerke is an accounting company based out of Oostduinkerke (Koksijde), Belgium.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchKapellen, BelgiumHQ recorded Sep 27, 202611-5015 contacts →

Exact match

“EMENDO is een accountantskantoor dat de volledige boekhouding en fiscaliteit van vennootschappen, eenmanszaken en vrije beroepen verzorgt.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchLeuven, BelgiumHQ recorded Sep 27, 202611-5014 contacts →

Exact match

“een apart boekhoudkantoor, enkel en alleen voor non-profit.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchBorsbeek, BelgiumHQ recorded Sep 27, 202611-5013 contacts →

Exact match

“Evenwicht zoeken, daar draait het vaak om in het leven.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchWevelgem, BelgiumHQ recorded Sep 27, 202611-5012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchHasselt, BelgiumHQ recorded Sep 27, 202611-5010 contacts →

Exact match

“ACCOUNTANTSKANTOOR JORDENS is an accounting company based out of 13 Kramerslaan, Hasselt, Belgium.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchBattice, BelgiumHQ recorded Sep 27, 202611-509 contacts →

Exact match

“Fiduciaire - Bureau Expert Comptable et Conseil Fiscal”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchZutendaal, BelgiumHQ recorded Sep 27, 202611-508 contacts →

Exact match

“Wij zijn een snelgroeiend boekhoud- en consultantkantoor te Zutendaal.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchLasne, BelgiumHQ recorded Sep 27, 20261-107 contacts →

Exact match

“Fiscalys est un cabinet comptable et fiscale basé à Lasne.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchHarelbeke, BelgiumHQ recorded Sep 27, 202651-2007 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchLint, BelgiumHQ recorded Sep 27, 20261-106 contacts →

Exact match

“Avisem is een proactief boekhoudkantoor in Lint, gespecialiseerd in medische en vrije beroepen, managementvennootschappen en IT consultants.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchHouthalen, BelgiumHQ recorded Sep 27, 20261-106 contacts →

Exact match

“Boekhouding - Fiscaliteit - Bedrijfsadvies”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchArendonk, BelgiumHQ recorded Sep 27, 20261-105 contacts →

Exact match

“A3 Accountants is sinds 1978 een vooraanstaand boekhoudkantoor in de Kempen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchLokeren, BelgiumHQ recorded Sep 27, 202611-505 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchSchoten, BelgiumHQ recorded Sep 27, 20261-104 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchMachelen, BelgiumHQ recorded Sep 27, 20261-104 contacts →

Exact match

“Braem Accountancy & Ficaliteit werd opgestart in januari 2016 door Julie Braem.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchFosses-la-ville, BelgiumHQ recorded Sep 27, 202611-504 contacts →

Exact match

“Fiduciaire Simon & Co Comptabilité & Fiscalité”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchGenappe, BelgiumHQ recorded Sep 27, 20261-104 contacts →

Exact match

“Vous cherchez un comptable fiscaliste pouvant répondre à toutes vos questions et vous aidant dans la vie quotidienne de votre entreprise?”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchRoeselare, BelgiumHQ recorded Sep 27, 202611-503 contacts →

Exact match

“Boekhoudkantoor D plus V is a company based out of 5 Ter Reigerie, Roeselare, Belgium.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchLanaken, BelgiumHQ recorded Sep 27, 20261-103 contacts →

Exact match

“BookAdvice is een boekhoudkantoor gevestigd in Lanaken, Belgisch Limburg.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchZwijndrecht, BelgiumHQ recorded Sep 27, 20261-103 contacts →

Exact match

“Boekhouding en raadgeving.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchLokeren, BelgiumHQ recorded Sep 27, 20261-103 contacts →

Exact match

“U weet het: een goede accountant bespaart u geld.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchBrussels, BelgiumHQ recorded Sep 27, 20261-103 contacts →

Exact match

“Adviseo est un cabinet d’expertise comptable et fiscale basé à Bruxelles, spécialisé dans l’accompagnement des sociétés et leurs dirigeants.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 94 501c3 accounting firms based in Belgium

See the full list, filter by size, metro and specialty, and access 161 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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501c3 accounting firms based in Belgium at a glance

As of Sep 27, 2026
41.8%Verified-email coverage
4.1Average contacts per company
1-10Median size (employees)
5.3%Largest-city concentration · Brussels
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
68
11-50
24
51-200
2

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 94 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 “501c3 accounting firms” 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 161 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 27, 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 “501c3 accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many 501c3 accounting firms are there based in Belgium?

RevenueBase identified 94 company matches for 501c3 accounting firms 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?

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

Which city has the most 501c3 accounting firms?

Brussels leads with 5 company records, followed by Ghent (4) and Lasne (2).

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 161 professional contacts with verified work emails tracked across these 94 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 27, 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.