Company lists · Data refreshed October 2026

Top 25 International tax accounting firms based in Luxembourg

RevenueBase identified 96 company matches for international tax accounting firms associated with Luxembourg as of October 2026 and tracks 1,934 professional contacts across them, including 749 with verified work emails and 34 with mobile numbers. Luxembourg is the largest hub.

This list covers company matches for international tax accounting firms associated with Luxembourg, 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 October 1, 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 Oct 1, 2026 How this list was built
96Companies
1,934Contacts tracked
749Verified emails
34Mobile numbers
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The 25 largest international tax accounting firms based in Luxembourg

Ranked by team size
Top 25 of 96 company matches for international tax accounting firms based in Luxembourg, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 matchLuxembourgHQ recorded Oct 1, 2026501-1,000600 contacts →

Exact match

“BDO Luxembourg is one of the largest firms of accountants, auditors and consultants in Luxembourg.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchSenningerberg, LuxembourgHQ recorded Oct 1, 202651-200242 contacts →

Exact match

“We are a high-end independent advisory firm offering a comprehensive and integrated range of direct and indirect tax solutions, as well as corporate finance, transfer pricing and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchLuxembourgHQ recorded Oct 1, 2026n/a234 contacts →

Exact match

“Our story begins in 2004 with the creation of the advisory firm ATOZ Tax Advisers.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchLeudelange, LuxembourgHQ recorded Oct 1, 202651-20087 contacts →

Exact match

“Founded in 1969, ParFi Group has a rich history and renowned expertise in the field of accountancy in Luxembourg.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchHesperange, LuxembourgHQ recorded Oct 1, 202651-20044 contacts →

Exact match

“ATWELL is a chartered accountant firm ("expert-comptable") and certified accounting firm ("cabinet de révision agréé") which was founded in 2012.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchLuxembourgHQ recorded Oct 1, 202651-20026 contacts →

Exact match

“Thanks to a team of specialists in the field of accounting, tax, social security and consulting, we assist SMEs and businesses of all sizes in the management of their daily lives.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchSenningerberg, LuxembourgHQ recorded Oct 1, 20261,001-5,00023 contacts →

Exact match

“Taxand provides high quality, integrated tax advice worldwide.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchEchternach, LuxembourgHQ recorded Oct 1, 202611-5021 contacts →

Exact match

“Our goal is to provide the best offshore tax service on the market."Solutions in tax matters" is what we are known for.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchLuxembourgHQ recorded Oct 1, 202651-20020 contacts →

Exact match

“Ficel Group est un cabinet d'experts-comptables et de consultants établi au Luxembourg.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchLuxembourgHQ recorded Oct 1, 202611-5019 contacts →

Exact match

“Fiduciaire Fernand Faber was incorporated in 1952 by Mr.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchSteinfort, LuxembourgHQ recorded Oct 1, 202611-5017 contacts →

Exact match

“Cabinet d’expertise comptable et fiscale spécialisé dans le support comptable, financier et fiscal aux PME et aux particuliers.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchLuxembourgHQ recorded Oct 1, 202611-5016 contacts →

Exact match

“Since 1995, FIDUCIAIRE EUROLUX offers the following professional services: High-quality accounting and internal audit, characterised by our many years of experience; preparation…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchWeiswampach, LuxembourgHQ recorded Oct 1, 202611-5015 contacts →

Exact match

“Whether tax consultancy, accounting, payroll accounting or human resources, we support you with innovative technologies in the digitalisation process, so that you always know…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchHowald, LuxembourgHQ recorded Oct 1, 20261-1011 contacts →

Exact match

“NoW Corporate Solutions is a new generation accounting firm providing specialized bespoke services and guidance for business firms as well as for real estate, private equity, or…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchLuxembourgHQ recorded Oct 1, 202611-5011 contacts →

Exact match

“B.A.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchLuxembourgHQ recorded Oct 1, 20261-1010 contacts →

Exact match

“B&R Consulting is an accounting and tax consulting firm registered with the Order of Chartered Accountants in Luxembourg.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchLuxembourgHQ recorded Oct 1, 2026201-50010 contacts →

Exact match

“Mazars est un groupe international et intégré spécialisé dans l’audit, la fiscalité et le conseil ainsi que dans les services comptables et juridiques*.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchLuxembourgHQ recorded Oct 1, 202611-508 contacts →

Exact match

“Service de comptabilité pour PME, indépendants et particuliers.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchLuxembourgHQ recorded Oct 1, 202611-507 contacts →

Exact match

“Your TACS, now part of Hawksford, is a Luxembourg company authorized as “Expert-Comptable" and is member of the “OEC – Ordre des experts-comptables”, the Luxembourg professional…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchLuxembourgHQ recorded Oct 1, 20261-106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchWindhof (koerich), LuxembourgHQ recorded Oct 1, 20261-106 contacts →

Exact match

“ACCOUNTING - TAX - CORPORATE - CONSULTING JW Partner combines a depth of knowledge and recognized expertise within a nimble structure to spare your company the bureaucracy and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchLuxembourgHQ recorded Oct 1, 20261-106 contacts →

Exact match

“Euraudit Consult est un cabinet d’Expertise-Comptable pour les entreprises et les indépendants à la recherche d’une expertise et de solutions de haute qualité.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchLuxembourgHQ recorded Oct 1, 202611-505 contacts →

Exact match

“Fiduciaire Jean-Marc Faber is a member of the Luxembourg Institute of Chartered Accountants, with 25 years of experience in a constantly and demanding environment.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchLuxembourgHQ recorded Oct 1, 20261-105 contacts →

Exact match

“UMA Wealth is a unique, boutique, professional services group.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchLuxembourgHQ recorded Oct 1, 20261-104 contacts →

Exact match

“Fidalpha SA a été créée à l’initiative de Monsieur Marcel Krier.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 96 international tax accounting firms based in Luxembourg

See the full list, filter by size, metro and specialty, and access 749 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International tax accounting firms based in Luxembourg at a glance

As of Oct 1, 2026
38.7%Verified-email coverage
1.8%Mobile-number coverage
20.1Average contacts per company
1-10Median size (employees)
51.0%Largest-city concentration · Luxembourg
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
29
51-200
8
201-500
2
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 33.0d

Company record updated

Median 80.0d

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 Luxembourg whose business descriptions match “international tax 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 749 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 October 1, 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.

International tax accounting firms by metro

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 “international tax accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international tax accounting firms are there based in Luxembourg?

RevenueBase identified 96 company matches for international tax accounting firms associated with Luxembourg as of October 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?

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

Which city has the most international tax accounting firms?

Luxembourg leads with 49 company records, followed by Bertrange (4) and Strassen (4).

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 749 professional contacts with verified work emails tracked across these 96 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 October 1, 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.