Company lists · Data refreshed September 2026

Top 25 Full-service consulting firms based in Luxembourg

Name: Full-service consulting firms based in Luxembourg
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 96 companies tracked

RevenueBase identified 96 full-service consulting firms headquartered in Luxembourg as of September 2026 and tracks 1,015 professional contacts across them, including 411 with verified work emails and 36 with mobile numbers. Luxembourg is the largest hub.

This list covers full-service consulting 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 30, 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 30, 2026 86% judged on-target in blind review

96Companies

1,015Contacts tracked

411Verified emails

36Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest full-service consulting firms based in Luxembourg

Ranked by team size

Top 25 of 96 full-service consulting firms based in Luxembourg, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to full-service consulting 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	QBA Worldwide	Indirect evidence	LuxembourgHQ checked Sep 30, 2026	201-500	163 contacts →
	Indirect evidence “Transforming Technology into Business Impact At QBA, we believe technology should not just work-it should transform.” Source: RevenueBase Database · checked Sep 30, 2026
2	Resultance	Partial evidence	Strassen, LuxembourgHQ checked Sep 30, 2026	51-200	106 contacts →
	Partial evidence “Resultance is a consulting group originally founded in Luxembourg and now operating across several European countries, including France, Belgium, and the UK.” Source: RevenueBase Database · checked Sep 30, 2026
3	CTG IT Solutions - Europe	Indirect evidence	Bertrange, LuxembourgHQ checked Sep 30, 2026	1,001-5,000	97 contacts →
	Indirect evidence “CTG serves as a catalyst for your digital transformation, offering innovative solutions and services that accelerate your strategy and project momentum.” Source: RevenueBase Database · checked Sep 30, 2026
4	IQ Solutions Luxembourg	Partial evidence	3364 Leudelange, LuxembourgHQ checked Sep 30, 2026	51-200	73 contacts →
	Partial evidence “Solutions for business partners - Independent solutions for changing times IQ Solutions is one of the largest players in the Luxembourg financial market and offer consulting…” Source: RevenueBase Database · checked Sep 30, 2026
5	ACO Human Capital	Partial evidence	Kockelscheuer, LuxembourgHQ checked Sep 30, 2026	51-200	55 contacts →
	Partial evidence “Alcyone Consulting propose à ses clients Grand Compte une expertise reconnue dans les métiers de l'IT, Gouvernance, Compliance et se distingue par le Savoir-Faire et Savoir-Être…” Source: RevenueBase Database · checked Sep 30, 2026
6	Hamlet Consulting Luxembourg	Partial evidence	LuxembourgHQ checked Sep 30, 2026	51-200	43 contacts →
	Partial evidence “Hamlet Consulting Luxembourg is a dynamic European consulting company based in the Grand Duchy of Luxembourg.” Source: RevenueBase Database · checked Sep 30, 2026
7	GCP Consulting	Partial evidence	LuxembourgHQ checked Sep 30, 2026	11-50	33 contacts →
	Partial evidence “GCP Consulting is a management consulting firm specialized in strategy and change management.” Source: RevenueBase Database · checked Sep 30, 2026
8	Leverage Consulting Luxembourg-Genève-Paris	Partial evidence	Livange, LuxembourgHQ checked Sep 30, 2026	11-50	23 contacts →
	Partial evidence “Leverage Consulting provides Advisory and sourcing services to Financial and Insurance organisations in their IT transformation projects.” Source: RevenueBase Database · checked Sep 30, 2026
9	Ease S.A	Partial evidence	LuxembourgHQ checked Sep 30, 2026	11-50	22 contacts →
	Partial evidence “Located in Luxembourg, EASE S.A is a management consulting firm driven to provide you with a competitive edge in an increasingly complex and interconnected marketplace.” Source: RevenueBase Database · checked Sep 30, 2026
10	UFO Consulting	Partial evidence	LuxembourgHQ checked Sep 30, 2026	11-50	22 contacts →
	Partial evidence “As a Technology and Organisation Consulting firm in Luxembourg and Paris, we accelerate the transformation of your business on a daily basis.” Source: RevenueBase Database · checked Sep 30, 2026
11	Fdlv SA	Indirect evidence	Leudelange, LuxembourgHQ checked Sep 30, 2026	11-50	19 contacts →
	Indirect evidence “FDLV Advisory & Technology is a consultancy company offering services on technology and business issues - ranging from information technologies to legal services.” Source: RevenueBase Database · checked Sep 30, 2026
12	OYESK	Indirect evidence	Bertrange, LuxembourgHQ checked Sep 30, 2026	51-200	18 contacts →
	Indirect evidence “Welcome to Oyesk!” Source: RevenueBase Database · checked Sep 30, 2026
13	STRAS	Indirect evidence	LuxembourgHQ checked Sep 30, 2026	11-50	14 contacts →
	Indirect evidence “At STRAS, we understand that navigating the complex landscape of business requires more than just solutions; it demands a strategic approach.” Source: RevenueBase Database · checked Sep 30, 2026
14	Eurogroup Consulting Luxembourg	Partial evidence	LuxembourgHQ checked Sep 30, 2026	11-50	12 contacts →
	Partial evidence “Groupe de conseil volontairement européen et indépendant, Eurogroup Consulting est un cabinet de conseil en stratégie et en organisation d'entreprise, composés de praticiens et de…” Source: RevenueBase Database · checked Sep 30, 2026
15	Traxxion S.A	Indirect evidence	Grevenmacher, LuxembourgHQ checked Sep 30, 2026	11-50	11 contacts →
	Indirect evidence “Active since 2007, TrAxxion is a venture from senior, experienced professionals with complementary backgrounds, located in and near Luxembourg.” Source: RevenueBase Database · checked Sep 30, 2026
16	Diginius Consulting	Partial evidence	LuxembourgHQ checked Sep 30, 2026	11-50	11 contacts →
	Partial evidence “Diginius Consulting – Your partner for digital transformation.” Source: RevenueBase Database · checked Sep 30, 2026
17	Syngeon S.A	Indirect evidence	LuxembourgHQ checked Sep 30, 2026	11-50	11 contacts →
	Indirect evidence “Als hochspezialisiertes und unabhängiges Beratungshaus für europäische Finanzdienstleister haben wir uns auf die Prozess- und Organisationsberatung sowie die digitale…” Source: RevenueBase Database · checked Sep 30, 2026
18	Axon Advisory & Consulting	Partial evidence	Flaxweiler, LuxembourgHQ checked Sep 30, 2026	11-50	10 contacts →
	Partial evidence “We offer unorthodox management advisory and consulting services.” Source: RevenueBase Database · checked Sep 30, 2026
19	Luxpayroll	Partial evidence	Bertrange, LuxembourgHQ checked Sep 30, 2026	51-200	9 contacts →
	Partial evidence “LuxPayroll is a consulting firm that proposes highly skilled consultants to the private and public sector in Luxembourg.” Source: RevenueBase Database · checked Sep 30, 2026
20	IBS & Partners	Indirect evidence	LuxembourgHQ checked Sep 30, 2026	11-50	7 contacts →
	Indirect evidence “Forte d’une expérience de plus de 30 ans dans le monde des affaires, IBS & Partners a acquis les compétences et connaissances en expertises comptable et fiscale et en…” Source: RevenueBase Database · checked Sep 30, 2026
21	Beonti S.A	Indirect evidence	Munsbach, LuxembourgHQ checked Sep 30, 2026	1-10	7 contacts →
	Indirect evidence “At beonti, we're dedicated to providing our clients with the highest level of service and expertise.” Source: RevenueBase Database · checked Sep 30, 2026
22	Thecatalysts	Partial evidence	LuxembourgHQ checked Sep 30, 2026	1-10	5 contacts →
	Partial evidence “theCatalysts is a management consulting and transactions advisory firm providing high quality support based on a 25+ year experience, in order to secure the most delicate missions.” Source: RevenueBase Database · checked Sep 30, 2026
23	LUXAT	Partial evidence	LuxembourgHQ checked Sep 30, 2026	1-10	5 contacts →
	Partial evidence “Luxat, a Luxembourg-based IT consulting firm, specializes in a range of services tailored to meet the evolving needs of its clients.” Source: RevenueBase Database · checked Sep 30, 2026
24	Codare	Indirect evidence	LuxembourgHQ checked Sep 30, 2026	1-10	4 contacts →
	Indirect evidence “Philosophy: Our engagement in business transformation is anchored in three beliefs: • Gaps between traditional and digital business cultures shall be bridged: a strategy should…” Source: RevenueBase Database · checked Sep 30, 2026
25	MTM Partners	Partial evidence	LuxembourgHQ checked Sep 30, 2026	11-50	4 contacts →
	Partial evidence “MTM Partners is an independent management consulting firm located in Luxembourg.” Source: RevenueBase Database · checked Sep 30, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: full-service consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names full-service consulting firms.
Partial evidence: Its own public description names part of full-service consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name full-service consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 96 full-service consulting firms based in Luxembourg

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 411 reachable decision-makers.

Free signup · no credit card

View the full list →

Full-service consulting firms based in Luxembourg at a glance

As of Sep 30, 2026

40.5%Verified-email coverage

3.5%Mobile-number coverage

10.6Average contacts per company

1-10Median size (employees)

50.0%Largest-city concentration · Luxembourg

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 33.0d

1070–30

29131–60

1261–90

190–180

0180+

Company record updated

Median 74.0d

00–30

29831–60

37661–90

27590–180

66180+

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 full-service consulting 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 “full-service consulting 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 full-service consulting 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 full-service consulting 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, 411 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 30, 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.

Full-service consulting firms by metro

Full-service consulting firms in Luxembourg48

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 full-service consulting 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 full-service consulting firms are there based in Luxembourg?

RevenueBase identified 96 full-service consulting 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?

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

Which city has the most full-service consulting firms?

Luxembourg leads with 48 headquartered companies, followed by Bertrange (6) 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 the top results, verified emails and direct dials included. Upgrading unlocks all 411 verified decision-maker contacts tracked across these 96 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 30, 2026.

Ready to reach these companies? Verified emails and direct dials for all 96 full-service consulting firms based in Luxembourg. Start with a free account, no credit card.

Download this list →

Related lists

Full-service consulting firms by geography

Browse the directory

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.