Company lists · Data refreshed September 2026

Top 14 Accountancy outsourcing services based in Luxembourg

RevenueBase identified 30 company matches for accountancy outsourcing services associated with Luxembourg as of September 2026 and tracks 743 professional contacts across them, including 409 with verified work emails. Luxembourg is the largest hub.

This list covers company matches for accountancy outsourcing services 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 21, 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 21, 2026 How this list was built
30Companies
743Contacts tracked
409Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 14 largest accountancy outsourcing services based in Luxembourg

Ranked by team size
Top 14 of 30 company matches for accountancy outsourcing services based in Luxembourg, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 21, 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 21, 2026 · View company records in RevenueBase
2Exact matchHesperange, LuxembourgHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3Exact matchPétange, LuxembourgHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4Exact matchLuxembourgHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5Exact matchLuxembourgHQ recorded Sep 21, 202611-508 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchWindhof (koerich), LuxembourgHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
7Exact matchLuxembourgHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8Exact matchEsch-sur-alzette, LuxembourgHQ recorded Sep 21, 202611-502 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 · Sep 21, 2026 · View company records in RevenueBase
9Exact matchWindhof, LuxembourgHQ recorded Sep 21, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchDudelange, LuxembourgHQ recorded Sep 21, 20261-102 contacts →

Exact match

“Fiducies vous propose une toute autre approche de la gestion d'entreprise - Tenue et mise à disposition votre comptabilité en TEMPS REEL et SANS DOUBLE SAISIE- Proposition de…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchNiederkorn, LuxembourgHQ recorded Sep 21, 20261-102 contacts →

Exact match

“Nous vous proposons différents services comptables- la saisie de vos dossiers comptables - le paramètrage de vos logiciels comptables BOB 50 - l'élaboration de votre budget et de…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchFrisange, LuxembourgHQ recorded Sep 21, 20261-102 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 · Sep 21, 2026 · View company records in RevenueBase
13Exact matchLuxembourgHQ recorded Sep 21, 20261-101 contacts →

Exact match

“Financial services support to international clients, corporate service providers and start-ups.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchSteinfort, LuxembourgHQ recorded Sep 21, 20261-101 contacts →

Exact match

“Expert-comptable”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 14 of 30 accountancy outsourcing services based in Luxembourg

See the full list, filter by size, metro and specialty, and access 409 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Accountancy outsourcing services based in Luxembourg at a glance

As of Sep 21, 2026
55.0%Verified-email coverage
24.8Average contacts per company
1-10Median size (employees)
30.0%Largest-city concentration · Luxembourg
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
4
51-200
1
501-1,000
1

Email recency for this list is measured worldwide rather than for Luxembourg, so it is reported there. Company counts and contact totals on this page are exact for Luxembourg, over 30 companies.

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 “accountancy outsourcing services” 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 409 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 21, 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 “accountancy outsourcing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accountancy outsourcing services are there based in Luxembourg?

RevenueBase identified 30 company matches for accountancy outsourcing services 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 accountancy outsourcing services?

Luxembourg leads with 9 company records, followed by Dudelange (2) and Esch-Sur-Alzette (2).

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 409 professional contacts with verified work emails tracked across these 30 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 30 accountancy outsourcing services based in Luxembourg. Start with a free account, no credit card.

Download this list →

Related lists

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.