Company lists · Data refreshed September 2026

Top 25 Accounting and tax outsourcing companies based in Luxembourg

RevenueBase identified 86 company matches for accounting and tax outsourcing companies associated with Luxembourg as of September 2026 and tracks 1,094 professional contacts across them, including 531 with verified work emails and 16 with mobile numbers. Luxembourg is the largest hub.

This list covers company matches for accounting and tax outsourcing companies 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 September 22, 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 22, 2026 How this list was built
86Companies
1,094Contacts tracked
531Verified emails
16Mobile numbers
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The 25 largest accounting and tax outsourcing companies based in Luxembourg

Ranked by team size
Top 25 of 86 company matches for accounting and tax outsourcing companies based in Luxembourg, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
2Exact matchBertrange, LuxembourgHQ recorded Sep 22, 202611-5053 contacts →

Exact match

“HB Fiduciaire, based in Bertrange, Luxembourg, offers accounting, taxation, remuneration, and human resources services for businesses.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchHesperange, LuxembourgHQ recorded Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
4Exact matchWeiswampach, LuxembourgHQ recorded Sep 22, 202651-20034 contacts →

Exact match

“From the creation of your company to the management of your accounting, finances, payroll, trademark protection and more!”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchPétange, LuxembourgHQ recorded Sep 22, 20261-1029 contacts →

Exact match

“Service comptable : •Tenue de la comptabilité •Gestion et suivi de la comptabilité clients et fournisseurs •Établissement des comptes annuels, préparation des AGO, AGE et…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchLuxembourgHQ recorded Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
7Exact matchEchternach, LuxembourgHQ recorded Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
8Exact matchSteinfort, LuxembourgHQ recorded Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
9Exact matchBascharage, LuxembourgHQ recorded Sep 22, 202611-5013 contacts →

Exact match

“La société Fiscogest S.à r.l, créée en 2007, est une équipe de professionnels jeunes et dynamiques vous garantissant un service de confiance personnalisé.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchLuxembourgHQ recorded Sep 22, 202611-5012 contacts →

Exact match

“L’expertise comptable, le conseil fiscal, l’administration et la gestion du personnel pour suivre la rentabilité de l’entreprise et optimiser la prise de décision.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchLuxembourgHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“Memola & Partners, Société Anonyme de conseil comptable, fiscal et social a été créée en 1994 et existe sous cette forme depuis 2007.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchLuxembourgHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“B.A.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchRumelange, LuxembourgHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“Implanté à Luxembourg, notre cabinet dispose d'un réseau et d'une expertise transfrontalière.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchLuxembourgHQ recorded Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
15Exact matchLuxembourgHQ recorded Sep 22, 202611-508 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchMersch, LuxembourgHQ recorded Sep 22, 202611-507 contacts →

Exact match

“Nous sommes un cabinet d'expertise comptable, membre de l'ordre des experts comptables, établi a Mersch depuis 1986.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchWindhof (koerich), LuxembourgHQ recorded Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
18Exact matchLuxembourgHQ recorded Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
19Exact matchLuxembourgHQ recorded Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
20Exact matchLuxembourgHQ recorded Sep 22, 20261-104 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchStrassen, LuxembourgHQ recorded Sep 22, 20261-104 contacts →

Exact match

“Fondée en 2014, QCo Groupe est le fruit de plus de 30 ans d’expérience.”

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

Exact match

“Etablie à Luxembourg depuis sa création en 1993, Fidcoserv Sàrl est un cabinet comptable à taille humaine au service des petites et moyennes entreprises (PME et PMI).”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchNiederanven, LuxembourgHQ recorded Sep 22, 202611-503 contacts →

Exact match

“SCHNEIDER LINSTER FIDUCIAIRE offers a full range of accounting, tax and business services for local and international clients.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchWilz, LuxembourgHQ recorded Sep 22, 20261-103 contacts →

Exact match

“Our firm is established in the Grand Duchy of Luxembourg and in Belgium.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchLuxembourgHQ recorded Sep 22, 202611-503 contacts →

Exact match

“Fiduciaire Intercommunautaire is a multidisciplinary firm with over twenty years of expertise in the field of accounting and consulting.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 86 accounting and tax outsourcing companies based in Luxembourg

See the full list, filter by size, metro and specialty, and access 531 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting and tax outsourcing companies based in Luxembourg at a glance

As of Sep 22, 2026
48.5%Verified-email coverage
1.5%Mobile-number coverage
12.7Average contacts per company
1-10Median size (employees)
38.4%Largest-city concentration · Luxembourg
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
56
11-50
25
51-200
3
501-1,000
1

Freshness & accuracy

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

Email last verified

Median 24.0d

Company record updated

Median 69.0d

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 “accounting and tax 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 531 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 22, 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.

Accounting and tax outsourcing companies 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 “accounting and tax outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting and tax outsourcing companies are there based in Luxembourg?

RevenueBase identified 86 company matches for accounting and tax outsourcing companies associated with Luxembourg 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?

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

Which city has the most accounting and tax outsourcing companies?

Luxembourg leads with 33 company records, followed by Strassen (5) and Bertrange (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 531 professional contacts with verified work emails tracked across these 86 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 22, 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.