Company lists · Data verified August 2026

Top 25 Accounting firms based in Luxembourg

Name: Accounting firms based in Luxembourg
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 165 companies tracked

There are 165 accounting firms headquartered in Luxembourg (RevenueBase, August 2026). RevenueBase tracks 8,004 professional contacts across them, including 3,406 with verified work emails and 100 with mobile numbers. Luxembourg is the largest hub.

This list covers accounting firms headquartered in Luxembourg, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

165Companies

8,004Contacts tracked

3,406Verified emails

100Mobile numbers

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The 25 largest accounting firms based in Luxembourg

Ranked by team size

Top 25 of 165 accounting firms based in Luxembourg, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	PWC Luxembourg	Luxembourg	1,001-5,000	3,446	1,407
2	Kpmg Luxembourg	Luxembourg	1,001-5,000	1,921	980
3	BDO Luxembourg	Diekirch	501-1,000	606	345
4	Forvis Mazars In Luxembourg	Luxembourg	201-500	357	137
5	Value Partners	Luxembourg	51-200	129	85
6	In Extenso Belux	Diekirch	51-200	127	87
7	Atwell	Hesperange	51-200	46	25
8	PKF Audit & Conseil Luxembourg	Luxembourg	11-50	39	23
9	Moore Audit S.A	Wecker	11-50	34	26
10	GT Fiduciaires S.A	Echternach	51-200	26	17
11	Cabexco	Windhof	11-50	24	17
12	Itialus Global	Luxembourg	201-500	24	9
13	Acse Audit Conseil Services	Strassen	11-50	23	10
14	A3t S.A	Belvaux	11-50	21	11
15	Ficel Group Luxembourg	Luxembourg	51-200	20	4
16	Baker Tilly Audit & Assurance S.À R.L	Howald	11-50	19	15
17	Fiduciaire Fernand Faber	Luxembourg	11-50	19	12
18	Partnrs	Luxembourg	11-50	18	9
19	Efitax Expertises	Steinfort	11-50	17	8
20	Fiduciaire Eurolux	Luxembourg	11-50	16	9
21	Fiscogest Sàrl	Bascharage	11-50	13	7
22	Corexperts S.A	Rumelange	11-50	12	7
23	Fiduciaire DES P.M.E	Luxembourg	11-50	12	3
24	Memola & Partners S.A	Luxembourg	11-50	11	8
25	Mazars In Luxembourg	Luxembourg	201-500	11	3

Showing 25 of 165 accounting firms based in Luxembourg

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Accounting firms based in Luxembourg at a glance

As of Aug 28, 2026

1-10Median size (employees)

LuxembourgLargest hub · 82 HQs

100Contacts with mobile numbers

34Emails re-verified in last 30 days

Companies by employee count

1-10

101

11-50

51-200

201-500

501-1,000

1,001-5,000

Accounting firms by metro

Metro	Companies
Accounting firms in Luxembourg	82
Accounting firms in Bertrange	8
Accounting firms in Esch-Sur-Alzette	7
Accounting firms in Strassen	7
Accounting firms in Mersch	3
Accounting firms in Steinfort	3
Accounting firms in Frisange	3

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “accounting firms”, with match quality audited by blind human judging, and headquartered in Luxembourg.
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: Contact records re-verify on a rolling cadence; 34 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many accounting firms are there based in Luxembourg?

There are 165 accounting firms headquartered in Luxembourg as of August 2026 (RevenueBase).

What is the largest company on this list?

PWC Luxembourg, headquartered in Luxembourg, tops this list with the largest team on record.

Which city has the most accounting firms?

Luxembourg leads with 82 headquartered companies, followed by Bertrange (8) and Esch-Sur-Alzette (7).

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 3,406 verified decision-maker contacts tracked across these 165 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.