Company lists · Data refreshed September 2026

Top 25 Outsourcing for accounting firms based in Belgium

RevenueBase identified 459 company matches for outsourcing for accounting firms associated with Belgium as of September 2026 and tracks 2,139 professional contacts across them, including 1,011 with verified work emails. Antwerp is the largest hub.

This list covers company matches for outsourcing for 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 21, 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 21, 2026 How this list was built
459Companies
2,139Contacts tracked
1,011Verified emails
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The 25 largest outsourcing for accounting firms based in Belgium

Ranked by team size
Top 25 of 459 company matches for outsourcing for accounting firms based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchHuizingen - Beersel, BelgiumHQ recorded Sep 21, 202651-20048 contacts →

Exact match

“Boekhouders - Fiscalisten • Sociaal dienstenkantoor • Belastingconsulent.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchChaudfontaine, BelgiumHQ recorded Sep 21, 202611-5046 contacts →

Exact match

“BILLY est un bureau comptable Digital & Humain qui simplifie la vie des indépendants et freelances.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchMechelen, BelgiumHQ recorded Sep 21, 202611-5044 contacts →

Exact match

“Verschaeren & Mertens is an accounting company based in Mechelen, Belgium.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchRonse, BelgiumHQ recorded Sep 21, 202611-5034 contacts →

Exact match

“Accountants Lauwers heeft vestigingen in Ronse, Frasnes, Gent en Kortrijk en stelt naast 6 vennoten, 40 medewerkers tewerk.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchEmbourg, BelgiumHQ recorded Sep 21, 202611-5034 contacts →

Exact match

“Depuis 3 générations, VERDIN & ASSOCIÉS offre un accompagnement en gestion comptable, fiscale et financière.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchVeurne, BelgiumHQ recorded Sep 21, 202651-20032 contacts →

Exact match

“Accountancy en fiscaliteit, in vertrouwen.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchAarschot, BelgiumHQ recorded Sep 21, 202611-5027 contacts →

Exact match

“Bij VCSA Tax Accountants staan we klaar om jouw onderneming te ondersteunen!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchLeuven, BelgiumHQ recorded Sep 21, 202611-5026 contacts →

Exact match

“Het boekhoudkantoor dat wél mee is met zijn tijd.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchHerk-de-stad, BelgiumHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“Voor resultaat op mensenmaat Op zoek naar een partner die je cijfers laat spreken en je bedrijf laat groeien?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchWatermael-boitsfort, BelgiumHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
11Exact match1090 Brussels, BelgiumHQ recorded Sep 21, 202651-20025 contacts →

Exact match

“Bij Financial Talents staan persoonlijke groei en ontwikkeling centraal.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchAalst, BelgiumHQ recorded Sep 21, 20261-1020 contacts →

Exact match

“We are bookkeepers.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchLeupegem, BelgiumHQ recorded Sep 21, 202651-20017 contacts →

Exact match

“Welkom bij Bekaert-Callebaut Accountancy.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchKortrijk, BelgiumHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
15Exact matchOostduinkerke, BelgiumHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
16Exact matchWijnegem, BelgiumHQ recorded Sep 21, 202611-5017 contacts →

Exact match

“Bij bas.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchWaasmunster, BelgiumHQ recorded Sep 21, 202611-5017 contacts →

Exact match

“Net als elk ander boekhoudkantoor verzorgen wij de boekhouding van managementvennootschappen, vrije beroepers en KMO’s.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchJabbeke, BelgiumHQ recorded Sep 21, 202611-5016 contacts →

Exact match

“Stemafisk staat de ondernemer bij in zijn alledaagse administratie en zijn boekhouding.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchBrasschaat, BelgiumHQ recorded Sep 21, 202611-5016 contacts →

Exact match

“Als ondernemer heb je heel wat wettelijke, boekhoudkundige en fiscale verplichtingen die je vaak liever kwijt dan rijk bent.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchBruges, BelgiumHQ recorded Sep 21, 202611-5016 contacts →

Exact match

“Cormafisk is een accountantskantoor dat bestaat uit een team van enthousiaste medewerkers die samen met uw dossierverantwoordelijke klaar staat om u wegwijs te maken in uw…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchIxelles, BelgiumHQ recorded Sep 21, 20261-1016 contacts →

Exact match

“Sofibel est un bureau comptable situé à Ixelles, qui accompagne les personnes physiques, sociétés et les associations dans la gestion de leur comptabilité et de leur fiscalité.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchKapellen, BelgiumHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
23Exact matchRoeselare, BelgiumHQ recorded Sep 21, 202611-5015 contacts →

Exact match

“Boekhoudkantoor Godderis Accountancy is gespecialiseerd in fiscaal en boekhoudkundig advies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchVichte, BelgiumHQ recorded Sep 21, 202611-5014 contacts →

Exact match

“Outsourcing van Financiële profielen - Financieel & Juridisch advies - Accountantskantoor OUTSOURCING : De juiste Financieel Expert voor uw KMO (boekhouder, controller, finance…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchKalken, BelgiumHQ recorded Sep 21, 202611-5013 contacts →

Exact match

“Boekhouding, administratie en papierwerk.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 459 outsourcing for accounting firms based in Belgium

See the full list, filter by size, metro and specialty, and access 1,011 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outsourcing for accounting firms based in Belgium at a glance

As of Sep 21, 2026
47.3%Verified-email coverage
4.7Average contacts per company
1-10Median size (employees)
3.1%Largest-city concentration · Antwerp
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
345
11-50
101
51-200
7

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 459 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 “outsourcing for 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 1,011 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 21, 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 “outsourcing for accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourcing for accounting firms are there based in Belgium?

RevenueBase identified 459 company matches for outsourcing for 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?

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

Which city has the most outsourcing for accounting firms?

Antwerp leads with 14 company records, followed by Ghent (11) and Brussels (8).

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 1,011 professional contacts with verified work emails tracked across these 459 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 21, 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.