Company lists · Data refreshed August 2026

Top 10 Accounting services outsourcing companies based in Luxembourg

RevenueBase identified 27 company matches for accounting services outsourcing companies associated with Luxembourg as of August 2026 and tracks 732 professional contacts across them, including 386 with verified work emails and 11 with mobile numbers. Luxembourg is the largest hub.

This list covers company matches for accounting services 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 August 30, 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 Aug 30, 2026 How this list was built
27Companies
732Contacts tracked
386Verified emails
11Mobile numbers
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The 10 largest accounting services outsourcing companies based in Luxembourg

Ranked by team size
Top 10 of 27 company matches for accounting services outsourcing companies based in Luxembourg, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Aug 30, 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 matchDiekirch, Luxembourg501-1,000606 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Aug 30, 2026 · View company records in RevenueBase
2Exact matchHesperange, Luxembourg51-20046 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 · Aug 30, 2026 · View company records in RevenueBase
3Exact matchPetange Canton Of Esch-Sur-Alzette, Luxembourg1-1029 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 · Aug 30, 2026 · View company records in RevenueBase
4Exact matchWindhof Koerich, Luxembourg1-106 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 · Aug 30, 2026 · View company records in RevenueBase
5Exact matchLuxembourg1-103 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 · Aug 30, 2026 · View company records in RevenueBase
6Exact matchWilz, Luxembourg1-103 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Aug 30, 2026 · View company records in RevenueBase
7Exact matchEsch-Sur-Alzette, Luxembourg11-502 contacts →

Exact match

“Since its establishment in 2007, GSL has proven itself as a trusted partner in the fields of accounting expertise, auditing, and management.”

Recorded in the RevenueBase company graph · Aug 30, 2026 · View company records in RevenueBase
8Exact matchLuxembourg1-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Aug 30, 2026 · View company records in RevenueBase
9Exact matchFrisange, Luxembourg1-102 contacts →

Exact match

“Zehren Fiduciaire SARL est votre partenaire de confiance pour vos besoins en comptabilité, en fiscalité et en gestion des salaires au Luxembourg.”

Recorded in the RevenueBase company graph · Aug 30, 2026 · View company records in RevenueBase
10Exact matchSteinfort, Luxembourg1-101 contacts →

Exact match

“Expert-comptable”

Recorded in the RevenueBase company graph · Aug 30, 2026 · View company records in RevenueBase

Showing 10 of 27 accounting services outsourcing companies based in Luxembourg

See the full list, filter by size, metro and specialty, and access 386 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting services outsourcing companies based in Luxembourg at a glance

As of Aug 30, 2026
52.7%Verified-email coverage
1.5%Mobile-number coverage
27.1Average contacts per company
1-10Median size (employees)
18.5%Largest-city concentration · Luxembourg
Aug 30, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
4
51-200
1
501-1,000
1

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 services 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 386 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 August 30, 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 services outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting services outsourcing companies are there based in Luxembourg?

RevenueBase identified 27 company matches for accounting services outsourcing companies associated with Luxembourg as of August 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 services outsourcing companies?

Luxembourg leads with 5 company records, followed by Esch-Sur-Alzette (2) and Frisange (1).

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 386 professional contacts with verified work emails tracked across these 27 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 August 30, 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.