Company lists · Data refreshed September 2026

Top 25 Corporate consulting firms based in Luxembourg

RevenueBase identified 101 corporate consulting firms headquartered in Luxembourg as of September 2026 and tracks 1,028 professional contacts across them, including 303 with verified work emails and 28 with mobile numbers. Luxembourg is the largest hub.

This list covers corporate 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 24, 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 24, 2026 86% judged on-target in blind review
101Companies
1,028Contacts tracked
303Verified emails
28Mobile numbers
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The 25 largest corporate consulting firms based in Luxembourg

Ranked by team size
Top 25 of 101 corporate consulting firms based in Luxembourg, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to corporate 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceStrassen, LuxembourgHQ checked Sep 24, 202651-200106 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 24, 2026
2Partial evidence3364 Leudelange, LuxembourgHQ checked Sep 24, 202651-20073 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 24, 2026
3Partial evidenceKockelscheuer, LuxembourgHQ checked Sep 24, 202651-20055 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 24, 2026
4Partial evidenceLuxembourgHQ checked Sep 24, 202651-20043 contacts →

Partial evidence

“Hamlet Consulting Luxembourg is a dynamic European consulting company based in the Grand Duchy of Luxembourg.”

Source: RevenueBase Database · checked Sep 24, 2026
5Partial evidenceLuxembourgHQ checked Sep 24, 202611-5033 contacts →

Partial evidence

“GCP Consulting is a management consulting firm specialized in strategy and change management.”

Source: RevenueBase Database · checked Sep 24, 2026
6Indirect evidenceLuxembourgHQ checked Sep 24, 202651-20033 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 24, 2026
7Indirect evidenceLuxembourgHQ checked Sep 24, 2026501-1,00031 contacts →

Indirect 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 24, 2026
8Partial evidenceLuxembourgHQ checked Sep 24, 202611-5028 contacts →

Partial evidence

“Finegan Luxembourg is part of the group Finegan, an independent French consulting firm created in 2009.”

Source: RevenueBase Database · checked Sep 24, 2026
9Partial evidenceLuxembourgHQ checked Sep 24, 202611-5022 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 24, 2026
10Indirect evidenceBertrange, LuxembourgHQ checked Sep 24, 202651-20018 contacts →

Indirect evidence

“Welcome to Oyesk!”

Source: RevenueBase Database · checked Sep 24, 2026
11Indirect evidenceBertrange, LuxembourgHQ checked Sep 24, 202611-5015 contacts →

Indirect evidence

“We deliver innovative solutions for successful customer outcomes, empowering people to engage in concrete process improvements.”

Source: RevenueBase Database · checked Sep 24, 2026
12Partial evidenceWemperhardt, LuxembourgHQ checked Sep 24, 202611-5015 contacts →

Partial evidence

“We are your partner for business development, sales and corporate communications.”

Source: RevenueBase Database · checked Sep 24, 2026
13Indirect evidenceLuxembourgHQ checked Sep 24, 202611-5014 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 24, 2026
14Partial evidenceLuxembourgHQ checked Sep 24, 202611-5012 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 24, 2026
15Indirect evidenceGrevenmacher, LuxembourgHQ checked Sep 24, 202611-5011 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 24, 2026
16Partial evidenceFlaxweiler, LuxembourgHQ checked Sep 24, 202611-5010 contacts →

Partial evidence

“We offer unorthodox management advisory and consulting services.”

Source: RevenueBase Database · checked Sep 24, 2026
17Partial evidenceLuxembourgHQ checked Sep 24, 20261-1010 contacts →

Partial evidence

“BHB & Partners is an independent advisory firm specialising in strategy, corporate finance (financial analysis, valuation, M&A) and operations (process optimisation, supply chain…”

Source: RevenueBase Database · checked Sep 24, 2026
18Indirect evidenceLuxembourgHQ checked Sep 24, 2026201-5007 contacts →

Indirect evidence

“Avantage Reply (a member of Reply Group) is a pan-European specialised management consultancy delivering change initiatives in Risk, Compliance, Finance (Capital Management and…”

Source: RevenueBase Database · checked Sep 24, 2026
19Partial evidenceLuxembourgHQ checked Sep 24, 20261-106 contacts →

Partial evidence

“CSAF is an International Consulting Company specialized in the Improvement of the Performance of Companies and Learning organization”

Source: RevenueBase Database · checked Sep 24, 2026
20Partial evidenceLuxembourgHQ checked Sep 24, 20261-105 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 24, 2026
21Partial evidenceEchternach, LuxembourgHQ checked Sep 24, 20261-105 contacts →

Partial evidence

“Oakridge is a boutique management consulting firm working with family-owned and owner-managed small and medium-sized businesses.”

Source: RevenueBase Database · checked Sep 24, 2026
22Partial evidenceLuxembourgHQ checked Sep 24, 202611-505 contacts →

Partial evidence

“H Valoris is a dynamic management and technology consulting firm, renowned for its collaborative, innovative, and client-centric approach.”

Source: RevenueBase Database · checked Sep 24, 2026
23Indirect evidenceLuxembourgHQ checked Sep 24, 20261-104 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 24, 2026
24Partial evidenceLuxembourgHQ checked Sep 24, 202611-504 contacts →

Partial evidence

“MTM Partners is an independent management consulting firm located in Luxembourg.”

Source: RevenueBase Database · checked Sep 24, 2026
25Indirect evidenceLorentzweiler, LuxembourgHQ checked Sep 24, 20261-103 contacts →

Indirect evidence

“Management Consultancy & Business Solutions”

Source: RevenueBase Database · checked Sep 24, 2026

Showing 25 of 101 corporate consulting firms based in Luxembourg

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Corporate consulting firms based in Luxembourg at a glance

As of Sep 24, 2026
29.5%Verified-email coverage
2.7%Mobile-number coverage
10.2Average contacts per company
1-10Median size (employees)
55.4%Largest-city concentration · Luxembourg
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
70
11-50
20
51-200
7
201-500
2
501-1,000
1
1,001-5,000
1

Freshness & accuracy

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

Email last verified

Median 26.0d

Company record updated

Median 65.0d

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 corporate 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 “corporate 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 corporate 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 corporate 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, 303 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 24, 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.

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 corporate 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 corporate consulting firms are there based in Luxembourg?

RevenueBase identified 101 corporate 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?

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

Which city has the most corporate consulting firms?

Luxembourg leads with 56 headquartered companies, followed by Bertrange (5) 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 303 verified decision-maker contacts tracked across these 101 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 24, 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.