Company lists · Data refreshed September 2026

Top 21 Trust accounting firms based in Luxembourg

RevenueBase identified 55 trust accounting firms headquartered in Luxembourg as of September 2026 and tracks 300 professional contacts across them, including 105 with verified work emails and 5 with mobile numbers. Luxembourg is the largest hub.

This list covers trust accounting firms headquartered in Luxembourg, 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 6, 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 6, 2026 86% judged on-target in blind review
55Companies
300Contacts tracked
105Verified emails
5Mobile numbers
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The 21 largest trust accounting firms based in Luxembourg

Ranked by team size
Top 21 of 55 trust accounting firms based in Luxembourg, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to trust accounting firms: 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 evidenceHesperange, LuxembourgHQ checked Sep 6, 202651-20044 contacts →

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

Source: company website · checked Sep 6, 2026
2Indirect evidenceL-8410 Steinfort, LuxembourgHQ checked Sep 6, 202611-5021 contacts →

“Notre concept.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceLuxembourgHQ checked Sep 6, 202611-5019 contacts →

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

Source: company website · checked Sep 6, 2026
4Partial evidenceHowald, LuxembourgHQ checked Sep 6, 20261-1011 contacts →

“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…”

Source: company website · checked Sep 6, 2026
5Indirect evidenceLuxembourgHQ checked Sep 6, 202611-5011 contacts →

“B.A.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceLuxembourgHQ checked Sep 6, 202611-509 contacts →

“Au service d’une clientèle tant nationale qu’internationale depuis 1973, notre cabinet offre toutes prestations comptables et fiscales aussi bien pour les particuliers que pour…”

Source: company website · checked Sep 6, 2026
7Partial evidenceLuxembourgHQ checked Sep 6, 20261-108 contacts →

“Global Serve Luxembourg is an independent expert provider of individually tailored corporate and accounting services.”

Source: company website · checked Sep 6, 2026
8Indirect evidenceLuxembourgHQ checked Sep 6, 202611-507 contacts →

“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…”

Source: company website · checked Sep 6, 2026
9Indirect evidenceLuxembourgHQ checked Sep 6, 20261-107 contacts →

“Key Partners is a new independent player on the local financial market and is a duly registered Chartered Accountant («Ordre des Experts-Comptables »).”

Source: company website · checked Sep 6, 2026
10Indirect evidenceWemperhardt, LuxembourgHQ checked Sep 6, 202611-506 contacts →

“Votre partenaire pour la protection et gestion de votre patrimoine.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceLuxembourgHQ checked Sep 6, 20261-106 contacts →

“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.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceMersch, LuxembourgHQ checked Sep 6, 202611-504 contacts →

“La Fiduciaire de Mersch S.A (« FIME ») a été constituée le 7 juillet 2007, elle se situe au cœur du Grand[1]Duché de Luxembourg à Mersch.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceLuxembourgHQ checked Sep 6, 20261-104 contacts →

“La Fiduciaire " ECCA " a été créée en 2007 par Guillaume BERNARD, Expert-Comptable et Commissaire aux Comptes en France et à Luxembourg.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceLuxembourgHQ checked Sep 6, 202611-504 contacts →
Source: company website · checked Sep 6, 2026
15Indirect evidenceHagen, LuxembourgHQ checked Sep 6, 20261-103 contacts →

“ECOFI SARL – partenaire des PME : • Expérience dans la gestion des sociétés commerciales luxembourgeoises et belges • Accompagnement de votre société de la constitution à la…”

Source: company website · checked Sep 6, 2026
16Indirect evidenceEsch/alzette, LuxembourgHQ checked Sep 6, 202611-502 contacts →

“La FIDUCIAIRE ACCURA S.à r.l.”

Source: company website · checked Sep 6, 2026
17Indirect evidenceLuxembourgHQ checked Sep 6, 20261-102 contacts →

“On behalf of its clients, GALUX produces or checks accounts, balance sheets, provisions and tax returns.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceMamer, LuxembourgHQ checked Sep 6, 20261-101 contacts →

“Avec plus de 20 ans d’expérience à son actif acquit au sein de la Fiduciaire René Moris et puis en tant qu’associée gérante dans la société Conseils Comptabilité Fiscalité SA…”

Source: company website · checked Sep 6, 2026
19Indirect evidenceLuxembourgHQ checked Sep 6, 20261-101 contacts →
Source: company website · checked Sep 6, 2026
20Indirect evidenceSteinfort, LuxembourgHQ checked Sep 6, 20261-101 contacts →

“Expert-comptable”

Source: company website · checked Sep 6, 2026
21Indirect evidenceWindhof, LuxembourgHQ checked Sep 6, 20261-101 contacts →

“Nous sommes votre partenaire de solutions financières pour tous vos besoins.”

Source: company website · checked Sep 6, 2026

Showing 21 of 55 trust accounting firms based in Luxembourg

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Trust accounting firms based in Luxembourg at a glance

As of Sep 6, 2026
35.0%Verified-email coverage
1.7%Mobile-number coverage
5.5Average contacts per company
1-10Median size (employees)
45.5%Largest-city concentration · Luxembourg
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
32
11-50
21
51-200
2

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 trust accounting firms, 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 Luxembourg whose own description of what they do matches “trust accounting firms”. 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 trust accounting firms), 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 trust accounting firms, and records with no verified work email. Companies headquartered outside Luxembourg 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, 105 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 6, 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.

Trust accounting firms by metro

  • Trust accounting firms in Luxembourg25

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 trust accounting firms, 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 trust accounting firms are there based in Luxembourg?

RevenueBase identified 55 trust accounting firms headquartered in Luxembourg 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?

Atwell, headquartered in Hesperange, tops this list with the largest team on record.

Which city has the most trust accounting firms?

Luxembourg leads with 25 headquartered companies, followed by Bertrange (3) and Esch-Sur-Alzette (3).

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 105 verified decision-maker contacts tracked across these 55 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 6, 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.