Company lists · Data refreshed September 2026

Top 25 Expatriate tax services based in Belgium

RevenueBase identified 66 expatriate tax services headquartered in Belgium as of September 2026 and tracks 230 professional contacts across them, including 103 with verified work emails. Brussels is the largest hub.

This list covers expatriate tax services 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
66Companies
230Contacts tracked
103Verified emails
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The 25 largest expatriate tax services based in Belgium

Ranked by team size
Top 25 of 66 expatriate tax services 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 expatriate tax services: 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
1Partial evidenceAntwerp, BelgiumHQ checked Sep 20, 202611-5020 contacts →

Partial evidence

“As a niche law firm, Sansen International Tax Lawyers focuses on three pillars, both nationally and internationally: tax advice, tax litigation and estate planning.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceZonhoven, BelgiumHQ checked Sep 20, 202611-5020 contacts →

Indirect evidence

“Groeien moet, luidt het adagio.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceSint-michiels (brugge), BelgiumHQ checked Sep 20, 202611-5011 contacts →

Partial evidence

“Stuyts Accounting & Tax levert sinds 1984 gewaardeerd totaaladvies aan het bedrijfsleven.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceZaventem, BelgiumHQ checked Sep 20, 20261-109 contacts →

Partial evidence

“Whether you are looking for advice to help achieve your long-term business goals or you are on a short-term job adventure in Belgium; we can assist you with anything tax related.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidence3530, BelgiumHQ checked Sep 20, 20261-108 contacts →

Indirect evidence

“Proactief meedenken, persoonlijk contact, sectorkennis en deskundigheid.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceHerstal, BelgiumHQ checked Sep 20, 20261-107 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceSart-bernard, BelgiumHQ checked Sep 20, 20261-107 contacts →

Indirect evidence

“Cabinet expertise comptable et fiscal situé à Erpent Création et gestion d'entreprises Etablissement des bilans - déclarations fiscales - déclarations T.V.A- listing T.V.A.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceSaint-gilles, BelgiumHQ checked Sep 20, 202611-507 contacts →

Indirect evidence

“Add Consult est un cabinet de conseil et d’expertise fiscale qui accompagne les entreprises et les entrepreneurs dans la gestion de leurs enjeux fiscaux, stratégiques et…”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceZaventem, BelgiumHQ checked Sep 20, 202611-506 contacts →

Indirect evidence

“Plus qu'un bureau d'expertise comptable, Oracio, vous permets d économiser des impôts, vous apportez sérénité et vous simplifie la vie!”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceBrussels, BelgiumHQ checked Sep 20, 20261-105 contacts →

Partial evidence

“Providing all-in one solutions to expatriates, small and medium-sized business.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceMont-sur-marchienne, BelgiumHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“Société d'expertise comptable et de conseil fiscal, Dirigeance (anciennement Fiduciaire Maenhout) est un centre d’accompagnement pour dirigeant d'entreprise.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceWoluwe-saint-lambert, BelgiumHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

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

Partial evidence

“YvR Accountancy & Tax geeft u graag advies en zorgt voor een degelijke en vooral eerlijke begeleiding.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceGembloux, BelgiumHQ checked Sep 20, 202611-503 contacts →

Indirect evidence

“FIGESTCO NORD SRL - Expertise comptable et fiscale - Rue Jean Sonet, 2 à 5032 Les Isnes.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceAntwerp, BelgiumHQ checked Sep 20, 20261-103 contacts →

Partial evidence

“We provide a wide variety of tax and accounting services, corporate advice and all other aspects which keeps entrepreneurs awake.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceKeerbergen, BelgiumHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“AVP Accountants & Belastingconsulenten is een professioneel adviesbureau dat gespecialiseerd is in accountancy en belastingadvies.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceZottegem, BelgiumHQ checked Sep 20, 20261-103 contacts →

Partial evidence

“After more than 15 years at a Big Four company, I became an independent Tax Consultant, assisting national and international companies with their global mobility and rewards…”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceZwijndrecht, BelgiumHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“Boekhouding en raadgeving.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceNivelles, BelgiumHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“La fiduciaire FIDALEX, agrée ITAA, est un cabinet d’Expertise Comptable et de Conseil Fiscal crée en 2008 par deux associés forts de leur expérience et motivation à mettre leur…”

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidenceGrimbergen, BelgiumHQ checked Sep 20, 202611-503 contacts →

Partial evidence

“De Blay + Partners / Schets is a professional consultancy specializing in tax, legal, accounting and estate planning services.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceFranc-waret, BelgiumHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“PRESENTATION GV Consulting est un cabinet d'Experts Comptables et de Conseils Fiscaux au service des entreprises (secteur marchand et non marchand) mais aussi des personnes…”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceSaint-georges-sur-meuse, BelgiumHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“Nous vous proposons notre expertise, notre savoir-faire Ainsi que nos conseils en matière de gestion comptable et de fiscalité.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceDendermonde, BelgiumHQ checked Sep 20, 20261-102 contacts →

Indirect evidence

“Human Capital Services BVBA is specialised in cross border advice.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceBrussels, BelgiumHQ checked Sep 20, 20261-102 contacts →

Indirect evidence

“In our increasingly globalized world, many people now work and reside outside their home countries.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceAalter, BelgiumHQ checked Sep 20, 202611-502 contacts →

Indirect evidence

“Accofides is gespecialiseerd in boekhoudkundig en fiscaal advies.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 66 expatriate tax services based in Belgium

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Expatriate tax services based in Belgium at a glance

As of Sep 20, 2026
44.8%Verified-email coverage
3.5Average contacts per company
1-10Median size (employees)
7.6%Largest-city concentration · Brussels
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
48
11-50
16
51-200
1
201-500
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 66 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 expatriate tax services, 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 “expatriate tax services”. 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 expatriate tax services), 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 expatriate tax services, 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, 103 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 expatriate tax services, 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 expatriate tax services are there based in Belgium?

RevenueBase identified 66 expatriate tax services 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?

Sansen International TAX Lawyers, headquartered in Belgium, tops this list with the largest team on record.

Which city has the most expatriate tax services?

Brussels leads with 5 headquartered companies, followed by Bruxelles (4) and Aalter (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 103 verified decision-maker contacts tracked across these 66 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.