Company lists · Data refreshed September 2026

Top 25 Accounting firm business process outsourcing companies based in Belgium

RevenueBase identified 619 company matches for accounting firm business process outsourcing companies associated with Belgium as of September 2026 and tracks 6,652 professional contacts across them, including 3,310 with verified work emails and 109 with mobile numbers. Antwerp is the largest hub.

This list covers company matches for accounting firm business process outsourcing companies 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
619Companies
6,652Contacts tracked
3,310Verified emails
109Mobile numbers
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The 25 largest accounting firm business process outsourcing companies based in Belgium

Ranked by team size
Top 25 of 619 company matches for accounting firm business process outsourcing companies 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 matchBrussels, BelgiumHQ recorded Sep 27, 20261,001-5,0001,087 contacts →

Exact match

“Moore Belgium is het grootste onafhankelijke accounting- en consulting bedrijf in België dat ondernemers helpt hun droom te realiseren.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchKortrijk, BelgiumHQ recorded Sep 27, 2026501-1,000564 contacts →

Exact match

“Vandelanotte, opgericht in 1948 door Roger Vandelanotte, is uitgegroeid tot het grootste onafhankelijke kantoor in België, met ook een vestiging in Rijsel (Frankrijk).”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchWemmel, BelgiumHQ recorded Sep 27, 2026201-500559 contacts →

Exact match

“Samen ondernemen, met kennis en visie.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchGhent, BelgiumHQ recorded Sep 27, 2026201-500316 contacts →

Exact match

“Dé adviseur voor de ambitieuze ondernemer.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchKortrijk, BelgiumHQ recorded Sep 27, 202651-200290 contacts →

Exact match

“We are your guide on the adventure of entrepreneurship!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchWaregem, BelgiumHQ recorded Sep 27, 2026201-500210 contacts →

Exact match

“Our Talent.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchBeaufays, BelgiumHQ recorded Sep 27, 2026n/a198 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchWilrijk (antwerpen), BelgiumHQ recorded Sep 27, 202611-5077 contacts →

Exact match

“Acco Accountants is een vooruitstrevend, innovatief kantoor met vestigingen in Antwerpen, Mechelen en Herentals.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchWatermael-boitsfort, BelgiumHQ recorded Sep 27, 202651-20063 contacts →

Exact match

“HLB is gespecialiseerd in accountancy, audit, juridisch en fiscaal advies.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchBruges And Brussels, BelgiumHQ recorded Sep 27, 202611-5044 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchMechelen, BelgiumHQ recorded Sep 27, 202611-5044 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchAns, BelgiumHQ recorded Sep 27, 202611-5042 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchBelgiumHQ recorded Sep 27, 2026201-50041 contacts →

Exact match

“JooS consulting, is consulting.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchHasselt, BelgiumHQ recorded Sep 27, 202611-5040 contacts →

Exact match

“Met 30 jaar ervaring in Accountancy en Fiscaliteit, onder de naam QPS, hebben we een gedegen naambekendheid opgebouwd, met een trouw cliënteel, een waarborg van continuïteit en…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchGent (drongen), BelgiumHQ recorded Sep 27, 202611-5039 contacts →

Exact match

“Accountantskantoor Van Coile & Partners CV is gespecialiseerd in adviesverlening aan KMO-bedrijven en grote ondernemingen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchKortrijk, BelgiumHQ recorded Sep 27, 202611-5038 contacts →

Exact match

“DKF Fiduciaire is opgericht in 1951 en blijft groeien.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchDiegem, BelgiumHQ recorded Sep 27, 202651-20036 contacts →

Exact match

“FR & P was established in 2002 with a Management buy-out between Deloitte and a number of managers.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact match2018 Antwerpen, BelgiumHQ recorded Sep 27, 202651-20036 contacts →

Exact match

“Since 1936 Callens, Pirenne, Theunissen & C° has been a major player in Belgium’s top 10 audit and accountancy firms with a strong sector-oriented approach.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchRonse, BelgiumHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
20Exact matchEmbourg, BelgiumHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
21Exact match8790, BelgiumHQ recorded Sep 27, 202611-5033 contacts →

Exact match

“Warfid is een toonaangevend accountantskantoor, met kantoren in Bredene, Gent en Waregem.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchVeurne, BelgiumHQ recorded Sep 27, 202651-20032 contacts →

Exact match

“Accountancy en fiscaliteit, in vertrouwen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchKontich, BelgiumHQ recorded Sep 27, 202611-5032 contacts →

Exact match

“Met kantoren in Kontich en Heist-op-den-Berg is AccountingTeam dé bedrijfsadviseur in Antwerpen en omstreken.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchVerviers, BelgiumHQ recorded Sep 27, 202611-5030 contacts →

Exact match

“Axylium - Certified Accountants and Company Auditors near me Our services:* Audit * Tax * Accounting * Consulting Belgium and Luxembourg”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchNamur, BelgiumHQ recorded Sep 27, 202611-5030 contacts →

Exact match

“Sogenam, bien plus qu’une fiduciaire.”

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

Showing 25 of 619 accounting firm business process outsourcing companies based in Belgium

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Accounting firm business process outsourcing companies based in Belgium at a glance

As of Sep 27, 2026
49.8%Verified-email coverage
1.6%Mobile-number coverage
10.7Average contacts per company
1-10Median size (employees)
4.2%Largest-city concentration · Antwerp
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
432
11-50
158
51-200
16
201-500
5
501-1,000
1
1,001-5,000
1

Freshness & accuracy

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

Email last verified

Median 29.0d

Company record updated

Median 82.0d

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 “accounting firm business process outsourcing companies” 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 3,310 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 “accounting firm business process outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting firm business process outsourcing companies are there based in Belgium?

RevenueBase identified 619 company matches for accounting firm business process outsourcing companies 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?

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

Which city has the most accounting firm business process outsourcing companies?

Antwerp leads with 26 company records, followed by Brussels (19) and Ghent (15).

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 3,310 professional contacts with verified work emails tracked across these 619 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.