Company lists · Data verified August 2026

Top 25 Consulting firms based in Luxembourg

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 447 companies tracked

There are 447 consulting firms headquartered in Luxembourg (RevenueBase, August 2026). RevenueBase tracks 8,556 professional contacts across them, including 3,408 with verified work emails and 178 with mobile numbers. Luxembourg is the largest hub.

This list covers consulting 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.

447Companies

8,556Contacts tracked

3,408Verified emails

178Mobile numbers

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The 25 largest consulting firms based in Luxembourg

Ranked by team size

Top 25 of 447 consulting 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	BDO Luxembourg	Diekirch	501-1,000	606	345
3	Ausy Belgium	Leudelange	1,001-5,000	161	22
4	Arendt Regulatory & Consulting	Luxembourg	51-200	136	84
5	In Extenso Belux	Diekirch	51-200	127	87
6	Spenglerfox	Luxembourg	201-500	114	39
7	Resultance	n/a	51-200	105	75
8	Tr-Engineering	Luxembourg	51-200	102	56
9	CTG IT Solutions - Europe	Bertrange	1,001-5,000	95	59
10	Parva Consulting	Luxembourg	51-200	90	44
11	Betic Ingénieurs-Conseils, Part Of Sweco	Steinheim	51-200	84	58
12	Inca Ingénieurs Conseils Associés S.À R.L	Esch-Sur-Alzette	51-200	82	56
13	Qbuild	n/a	51-200	81	50
14	Venthone	Capellen	501-1,000	78	23
15	IQ Solutions Luxembourg	Leudelange	51-200	73	10
16	Goblet Lavandier & Associés S.A	n/a	51-200	71	60
17	Square Management Belgium	Strassen	501-1,000	65	38
18	ACO Human Capital	Kockelscheuer Canton Of Esch-Sur-Alzette	51-200	63	30
19	Best Ingénieurs-Conseils	Senningerberg	51-200	60	36
20	Forty2 AG	Wecker Wecker	51-200	56	24
21	Raftech	Luxembourg	51-200	50	26
22	Agile Partner	Kockelscheuer Canton Of Esch-Sur-Alzette	51-200	49	31
23	Hamlet Consulting Luxembourg	Luxembourg	51-200	43	27
24	The Taplow Group S.A	Luxembourg	51-200	39	1
25	SCS Consulting	Luxembourg	51-200	35	16

Showing 25 of 447 consulting firms based in Luxembourg

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Consulting firms based in Luxembourg at a glance

As of Aug 28, 2026

1-10Median size (employees)

LuxembourgLargest hub · 227 HQs

178Contacts with mobile numbers

16Emails re-verified in last 30 days

Companies by employee count

1-10

272

11-50

120

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Consulting firms by metro

Metro	Companies
Consulting firms in Luxembourg	227
Consulting firms in Bertrange	21
Consulting firms in Strassen	15
Consulting firms in Capellen	9
Consulting firms in Esch-Sur-Alzette	8
Consulting firms in Windhof	6
Consulting firms in Steinfort	5

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 “consulting 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; 16 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 consulting firms are there based in Luxembourg?

There are 447 consulting 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 consulting firms?

Luxembourg leads with 227 headquartered companies, followed by Bertrange (21) and Strassen (15).

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 3,408 verified decision-maker contacts tracked across these 447 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.