Company lists · Data refreshed September 2026
Top 21 IT consulting firms based in Luxembourg
RevenueBase identified 194 IT consulting firms headquartered in Luxembourg as of September 2026 and tracks 8,699 professional contacts across them, including 2,684 with verified work emails and 174 with mobile numbers. Luxembourg is the largest hub.
This list covers IT 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 21 largest IT consulting firms based in Luxembourg
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | Netcompany-IntrasoftPartial evidence | 1,279 | |||
“Netcompany-Intrasoft is a leading European IT Solutions and Services Group with strong international presence and expertise, offering innovative and added-value solutions of the…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 310 | ||||
“InTech est une Entreprise de Services Numériques (ESN) luxembourgeoise fondée en 1995 et filiale du groupe POST Luxembourg.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 302 | ||||
“En collaboration étroite avec ses clients, NSI Luxembourg propose des développements applicatifs et des services à haute valeur ajoutée dans les domaines d’architecture…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 99 | ||||
“Edda (formerly C-Services) is a company created in 2008 and since then has developed several expertise- Enterprise Content Management: Our SharePoint and Office 365 experts will…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 95 | ||||
“CTG serves as a catalyst for your digital transformation, offering innovative solutions and services that accelerate your strategy and project momentum.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 63 | ||||
“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: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 60 | ||||
“Accenture helps the world’s leading enterprises reinvent by building their digital core and unleashing the power of AI to create value at speed for organizations across industries.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 56 | ||||
“Fondée en 2009, Elliott Group, au travers de ses différentes entités, Elliott Developments, Elliott Consulting et Elliott CyberSquad s’est construite autour d’une compétence très…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 49 | ||||
“CBC Informatique: Your Trusted Technology Partner For over 34 years, CBC Informatique has been supporting Luxembourg businesses in their digital transformation.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 43 | ||||
“Hamlet Consulting Luxembourg is a dynamic European consulting company based in the Grand Duchy of Luxembourg.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | Amexio Belgium & LuxembourgIndirect evidence | 41 | |||
“Our mission: Helping companies to improve their operational cost and efficiency through better process and content management, collaboration, knowledge sharing and by using the…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 41 | ||||
“Based in Luxembourg and Germany, Logos is a recognized company of the IT sector.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 31 | ||||
“OPEXIA Advisory (former NGR Consulting) is an independent young and growing consulting firm active in the areas of business and technology consulting, in the financial sector.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 30 | ||||
“Since 2011 Experis is the global brand of ManpowerGroup for executive recruitment and professional services.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 27 | ||||
“Charles Oakes is a leading IT Solutions Organisation established in Luxembourg in 2005.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 27 | ||||
“Notre équipe de 30 personnes est un mélange dynamique de motivation, d'inventivité et de passion pour les services informatiques et de marketing.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 25 | ||||
“Acteur efficace et fiable dans les domaines de gestion informatique et des services en technologies de l’information, nous proposons des solutions durables et adaptées aux besoins…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 | ||||
“Grâce à ses experts certifiés Microsoft, Elgon vous conseille et vous accompagne dans votre adoption du Cloud, tout en garantissant la pérennité de votre infrastructure et de…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 22 | ||||
“dartalis is a regional leader and an independent company focused on information security since 2001.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 | ||||
“Switch IT est une société luxembourgeoise spécialisée dans le conseil, la conception, le développement et la mise en place de solutions informatiques pour le secteur financier…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 | ||||
“As a Technology and Organisation Consulting firm in Luxembourg and Paris, we accelerate the transformation of your business on a daily basis.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 21 of 194 IT consulting firms based in Luxembourg
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IT consulting firms based in Luxembourg at a glance
As of Sep 4, 2026Companies by employee count
Verified emails by last verification
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 IT consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Luxembourg whose own description of what they do matches “IT consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among IT 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 an evidence 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, 2,684 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 4, 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.
IT consulting firms by metro
- IT consulting firms in Luxembourg89
Frequently asked
How many IT consulting firms are there based in Luxembourg?
RevenueBase identified 194 IT 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?
Netcompany-Intrasoft, headquartered in Luxembourg, tops this list with the largest team on record.
Which city has the most IT consulting firms?
Luxembourg leads with 89 headquartered companies, followed by Bertrange (8) and Windhof (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 2,684 verified decision-maker contacts tracked across these 194 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 4, 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 SmartSearch, 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.