Company lists · Data refreshed September 2026
Top 25 IT consultancies based in Luxembourg
RevenueBase identified 354 IT consultancies headquartered in Luxembourg as of September 2026 and tracks 5,621 professional contacts across them, including 1,970 with verified work emails and 145 with mobile numbers. Luxembourg is the largest hub.
This list covers IT consultancies 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 26, 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.
The 25 largest IT consultancies based in Luxembourg
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 911 contacts → | ||||
Partial evidence “Arηs Group, Part of Accenture - is a market leader in the management of complex IT projects and systems.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 2 | 546 contacts → | ||||
Indirect evidence “SOA People is one of Europe’s leading consulting and services groups specializing in SAP solutions.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 3 | 313 contacts → | ||||
Indirect evidence “InTech est une Entreprise de Services Numériques (ESN) luxembourgeoise fondée en 1995 et filiale du groupe POST Luxembourg.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 4 | 303 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 5 | 163 contacts → | ||||
Partial evidence “Transforming Technology into Business Impact At QBA, we believe technology should not just work-it should transform.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 6 | 100 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 26, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 26, 2026Thanks. The Data Team will review it. | |||||
| 9 | 79 contacts → | ||||
Indirect evidence “INCA Ingénieurs Conseils Associés S.à.r.l.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 10 | 79 contacts → | ||||
Indirect evidence “Venthone, a 100% human and 100% digital solution that simplifies your consulting and payroll experience and supports your growth.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 26, 2026Thanks. The Data Team will review it. | |||||
| 12 | 65 contacts → | ||||
Indirect evidence “VASS drives business value creation through strategic end-to-end digital transformation projects, combining business, technology, data, and AI solutions.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 13 | 60 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 14 | 59 contacts → | ||||
Partial evidence “An application is much more than a code base; it is an ever-changing set of constraints, expectations and unforeseen events.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 15 | 55 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 26, 2026Thanks. The Data Team will review it. | |||||
| 17 | 48 contacts → | ||||
Indirect evidence “Depuis 2004, notre expertise en développement digital et en agilité accompagne nos clients dans la création de solutions logicielles sur mesure ainsi qu’un accompagnement des…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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 26, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 26, 2026Thanks. The Data Team will review it. | |||||
| 20 | 41 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 26, 2026Thanks. The Data Team will review it. | |||||
| 22 | 33 contacts → | ||||
Indirect evidence “GCP Consulting is a management consulting firm specialized in strategy and change management.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 23 | 31 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 26, 2026Thanks. The Data Team will review it. | |||||
| 24 | 30 contacts → | ||||
Indirect evidence “Since 2011 Experis is the global brand of ManpowerGroup for executive recruitment and professional services.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 25 | 30 contacts → | ||||
Indirect evidence “Intesa Sanpaolo Servitia S.A.("ISP Servitia") is an ICT company based in Luxembourg since 1976.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
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: IT consultancies. 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 IT consultancies.
- Partial evidence
- Its own public description names part of IT consultancies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT consultancies. 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 354 IT consultancies based in Luxembourg
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IT consultancies based in Luxembourg at a glance
As of Sep 26, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 28.0dCompany record updated
Median 73.0dHow 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 consultancies, 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 “IT consultancies”. 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 IT consultancies), 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 IT consultancies, 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, 1,970 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 26, 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 consultancies by metro
- IT consultancies in Luxembourg168
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 IT consultancies, 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 IT consultancies are there based in Luxembourg?
RevenueBase identified 354 IT consultancies 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?
Arhs Group, headquartered in Belvaux Luxembourg, tops this list with the largest team on record.
Which city has the most IT consultancies?
Luxembourg leads with 168 headquartered companies, followed by Bertrange (17) and Windhof (10).
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 1,970 verified decision-maker contacts tracked across these 354 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 26, 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.