Company lists · Data refreshed September 2026

Top 25 B2B consultancy services based in Luxembourg

Name: B2B consultancy services based in Luxembourg
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 170 companies tracked

RevenueBase identified 170 B2B consultancy services headquartered in Luxembourg as of September 2026 and tracks 1,578 professional contacts across them, including 688 with verified work emails and 52 with mobile numbers. Luxembourg is the largest hub.

This list covers B2B consultancy services 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 23, 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 23, 2026 86% judged on-target in blind review

170Companies

1,578Contacts tracked

688Verified emails

52Mobile numbers

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The 25 largest B2B consultancy services based in Luxembourg

Ranked by team size

Top 25 of 170 B2B consultancy services based in Luxembourg, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to B2B consultancy services: 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 23, 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 23, 2026
2	In Extenso Belux	Indirect evidence	Windhof, LuxembourgHQ checked Sep 23, 2026	51-200	124 contacts →
	Indirect evidence “Vous êtes chef d’entreprise, artisan, commerçant, professionnels libéral ou du secteur financier?” Source: RevenueBase Database · checked Sep 23, 2026
3	Resultance	Indirect evidence	Strassen, LuxembourgHQ checked Sep 23, 2026	51-200	106 contacts →
	Indirect 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 23, 2026
4	AKABI	Partial evidence	Itzig, LuxembourgHQ checked Sep 23, 2026	51-200	98 contacts →
	Partial evidence “AKABI is a young and entrepreneurial IT consultancy company specialized in Business Intelligence, Software Development, Cloud and IT Infrastructure.” Source: RevenueBase Database · checked Sep 23, 2026
5	CTG IT Solutions - Europe	Indirect evidence	Bertrange, LuxembourgHQ checked Sep 23, 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 23, 2026
6	IQ Solutions Luxembourg	Indirect evidence	3364 Leudelange, LuxembourgHQ checked Sep 23, 2026	51-200	73 contacts →
	Indirect 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 23, 2026
7	Hamlet Consulting Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	51-200	43 contacts →
	Indirect evidence “Hamlet Consulting Luxembourg is a dynamic European consulting company based in the Grand Duchy of Luxembourg.” Source: RevenueBase Database · checked Sep 23, 2026
8	Metrum	Indirect evidence	Strassen, LuxembourgHQ checked Sep 23, 2026	51-200	41 contacts →
	Indirect evidence “Depuis plus de 20 ans, nous accompagnons nos clients au travers de leur démarche de digitalisation.” Source: RevenueBase Database · checked Sep 23, 2026
9	Gate-16	Partial evidence	LuxembourgHQ checked Sep 23, 2026	11-50	38 contacts →
	Partial evidence “Founded in 2007, Gate-16 is a consulting firm specialized in IT consultancy, IT transitions & operations, as well as recruitment and HR Services.” Source: RevenueBase Database · checked Sep 23, 2026
10	GCP Consulting	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	11-50	33 contacts →
	Indirect evidence “GCP Consulting is a management consulting firm specialized in strategy and change management.” Source: RevenueBase Database · checked Sep 23, 2026
11	SCS Consulting	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	51-200	33 contacts →
	Indirect evidence “SCS est une structure de conseil opérationnel en gestion et exécution de projets pour le secteur financier créée en 1993 au Luxembourg.” Source: RevenueBase Database · checked Sep 23, 2026
12	Square Management Luxembourg	Partial evidence	LuxembourgHQ checked Sep 23, 2026	501-1,000	31 contacts →
	Partial evidence “Square Management Luxembourg is an international management & business consultancy firm, specialized in the financial sector, with offices in Luxembourg, Brussels and Paris.” Source: RevenueBase Database · checked Sep 23, 2026
13	Finegan Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	11-50	28 contacts →
	Indirect evidence “Finegan Luxembourg is part of the group Finegan, an independent French consulting firm created in 2009.” Source: RevenueBase Database · checked Sep 23, 2026
14	Leverage Consulting Luxembourg-Genève-Paris	Indirect evidence	Livange, LuxembourgHQ checked Sep 23, 2026	11-50	23 contacts →
	Indirect evidence “Leverage Consulting provides Advisory and sourcing services to Financial and Insurance organisations in their IT transformation projects.” Source: RevenueBase Database · checked Sep 23, 2026
15	Ease S.A	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	11-50	22 contacts →
	Indirect 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 23, 2026
16	UFO Consulting	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	11-50	22 contacts →
	Indirect 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 23, 2026
17	Fdlv SA	Partial evidence	Leudelange, LuxembourgHQ checked Sep 23, 2026	11-50	19 contacts →
	Partial 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 23, 2026
18	OYESK	Indirect evidence	Bertrange, LuxembourgHQ checked Sep 23, 2026	51-200	18 contacts →
	Indirect evidence “Welcome to Oyesk!” Source: RevenueBase Database · checked Sep 23, 2026
19	Imendos	Indirect evidence	Bertrange, LuxembourgHQ checked Sep 23, 2026	11-50	15 contacts →
	Indirect evidence “We deliver innovative solutions for successful customer outcomes, empowering people to engage in concrete process improvements.” Source: RevenueBase Database · checked Sep 23, 2026
20	Framenatic	Indirect evidence	Wemperhardt, LuxembourgHQ checked Sep 23, 2026	11-50	15 contacts →
	Indirect evidence “We are your partner for business development, sales and corporate communications.” Source: RevenueBase Database · checked Sep 23, 2026
21	Optim'ease	Partial evidence	LuxembourgHQ checked Sep 23, 2026	11-50	14 contacts →
	Partial evidence “Founded in 2024, our consultancy binds decades of collective experience gained within renown consulting companies.” Source: RevenueBase Database · checked Sep 23, 2026
22	STRAS	Indirect evidence	LuxembourgHQ checked Sep 23, 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 23, 2026
23	Eurogroup Consulting Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	11-50	12 contacts →
	Indirect 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 23, 2026
24	Traxxion S.A	Indirect evidence	Grevenmacher, LuxembourgHQ checked Sep 23, 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 23, 2026
25	Diginius Consulting	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	11-50	11 contacts →
	Indirect evidence “Diginius Consulting – Your partner for digital transformation.” Source: RevenueBase Database · checked Sep 23, 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: B2B consultancy services. 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 B2B consultancy services.
Partial evidence: Its own public description names part of B2B consultancy services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name B2B consultancy services. 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 170 B2B consultancy services based in Luxembourg

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B2B consultancy services based in Luxembourg at a glance

As of Sep 23, 2026

43.6%Verified-email coverage

3.3%Mobile-number coverage

9.3Average contacts per company

1-10Median size (employees)

51.8%Largest-city concentration · Luxembourg

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

111

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 26.0d

5270–30

14831–60

1261–90

090–180

1180+

Company record updated

Median 67.0d

00–30

56131–60

69861–90

23090–180

89180+

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 B2B consultancy services, 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 “B2B consultancy services”. 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 B2B consultancy services), 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 B2B consultancy services, 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, 688 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 23, 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.

B2B consultancy services by metro

B2B consultancy services in Luxembourg88

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 B2B consultancy services, 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 B2B consultancy services are there based in Luxembourg?

RevenueBase identified 170 B2B consultancy services 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 B2B consultancy services?

Luxembourg leads with 88 headquartered companies, followed by Bertrange (8) and Grevenmacher (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 688 verified decision-maker contacts tracked across these 170 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 23, 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.