Company lists · Data refreshed September 2026

Top 25 Big IT consulting firms based in Luxembourg

Name: Big IT consulting firms based in Luxembourg
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 139 companies tracked

RevenueBase identified 139 big IT consulting firms headquartered in Luxembourg as of September 2026 and tracks 4,715 professional contacts across them, including 2,109 with verified work emails and 165 with mobile numbers. Luxembourg is the largest hub.

This list covers big 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, 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

139Companies

4,715Contacts tracked

2,109Verified emails

165Mobile numbers

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The 25 largest big IT consulting firms based in Luxembourg

Ranked by team size

Top 25 of 139 big IT consulting firms 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 big IT 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	Sword Group	Partial evidence	Windhof, LuxembourgHQ checked Sep 23, 2026	1,001-5,000	1,711 contacts →
	Partial evidence “Sword is a leader in data insights, digital transformation and technology services with a substantial reputation in complex IT, business projects and mission critical operations…” Source: RevenueBase Database · checked Sep 23, 2026
2	Intrasoft International	Partial evidence	LuxembourgHQ checked Sep 23, 2026	1,001-5,000	461 contacts →
	Partial evidence “Please, make sure you follow our new page - INTRASOFT International is a leading European IT Solutions and Services Group with strong international presence and expertise…” Source: RevenueBase Database · checked Sep 23, 2026
3	Intech	Indirect evidence	Kayl, LuxembourgHQ checked Sep 23, 2026	51-200	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 23, 2026
4	NSI Luxembourg PSF	Indirect evidence	Esch-sur-alzette, LuxembourgHQ checked Sep 23, 2026	201-500	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 23, 2026
5	QBA Worldwide	Partial evidence	LuxembourgHQ checked Sep 23, 2026	201-500	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 23, 2026
6	Trustteam Luxembourg	Partial evidence	Capellen, LuxembourgHQ checked Sep 23, 2026	51-200	156 contacts →
	Partial evidence “System Solutions becomes Trustteam Luxembourg In its 28 years of existence, Trustteam Luxembourg has grown into a 360° IT partner, PSF-approved and ISO 27001 certified.” Source: RevenueBase Database · checked Sep 23, 2026
7	Edda Luxembourg	Indirect evidence	Windhof, LuxembourgHQ checked Sep 23, 2026	51-200	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 23, 2026
8	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
9	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
10	Vass Benelux	Indirect evidence	Windhof, LuxembourgHQ checked Sep 23, 2026	1,001-5,000	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 23, 2026
11	Accenture Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	51-200	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 23, 2026
12	ACO Human Capital	Strong evidence	Kockelscheuer, LuxembourgHQ checked Sep 23, 2026	51-200	55 contacts →
	Strong 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 23, 2026
13	Hamlet Consulting Luxembourg	Partial evidence	LuxembourgHQ checked Sep 23, 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 23, 2026
14	Amexio Belgium & Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	51-200	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 23, 2026
15	Gate-16	Strong evidence	LuxembourgHQ checked Sep 23, 2026	11-50	38 contacts →
	Strong 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
16	Digitalize Advisory Certified B Corp	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	11-50	24 contacts →
	Indirect evidence “Digitalize, certified B Corp™ and elected Best Place To Work!” Source: RevenueBase Database · checked Sep 23, 2026
17	ELGON	Indirect evidence	Windhof, LuxembourgHQ checked Sep 23, 2026	51-200	23 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 23, 2026
18	Leverage Consulting Luxembourg-Genève-Paris	Strong evidence	Livange, LuxembourgHQ checked Sep 23, 2026	11-50	23 contacts →
	Strong 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
19	UFO Consulting	Partial evidence	LuxembourgHQ checked Sep 23, 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 23, 2026
20	Xpectis	Partial evidence	Holzem, LuxembourgHQ checked Sep 23, 2026	11-50	20 contacts →
	Partial evidence “Xpectis is a leading provider of IT Solutions & Services to an expanding range of customers.” Source: RevenueBase Database · checked Sep 23, 2026
21	Fdlv SA	Indirect evidence	Leudelange, LuxembourgHQ checked Sep 23, 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 23, 2026
22	Multidata IT Solutions	Indirect evidence	Weiswampach, LuxembourgHQ checked Sep 23, 2026	11-50	18 contacts →
	Indirect evidence “Since 1993, Multidata provide high-quality ICT solutions that help clients achieve their business objectives.” Source: RevenueBase Database · checked Sep 23, 2026
23	Movify Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 23, 2026	11-50	18 contacts →
	Indirect evidence “Movify is a next-generation & firm specialised in strategy, user experience design, and technology for financial, telecom and media industries.” Source: RevenueBase Database · checked Sep 23, 2026
24	Technology Partner	Partial evidence	Pontpierre, LuxembourgHQ checked Sep 23, 2026	11-50	16 contacts →
	Partial evidence “Technology Partner is an IT services company specialised in project development, consultancy and automation of company processes and procedures.” Source: RevenueBase Database · checked Sep 23, 2026
25	System Solutions	Partial evidence	LuxembourgHQ checked Sep 23, 2026	51-200	14 contacts →
	Partial evidence “System Solutions was founded in 1996 and has over time developed into a leading IT managed service provider for organizations.” 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: big IT 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 big IT consulting firms.
Partial evidence: Its own public description names part of big IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name big IT 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 139 big IT consulting firms based in Luxembourg

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Big IT consulting firms based in Luxembourg at a glance

As of Sep 23, 2026

44.7%Verified-email coverage

3.5%Mobile-number coverage

33.9Average contacts per company

11-50Median size (employees)

46.0%Largest-city concentration · Luxembourg

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

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 25.0d

1,6310–30

43131–60

2661–90

190–180

20180+

Company record updated

Median 77.0d

00–30

1,21731–60

2,25361–90

1,02490–180

221180+

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 big IT 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 “big IT 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 big IT 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 big 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 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, 2,109 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.

Big IT consulting firms by metro

Big IT consulting firms in Luxembourg64

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 big IT 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 big IT consulting firms are there based in Luxembourg?

RevenueBase identified 139 big 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?

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

Which city has the most big IT consulting firms?

Luxembourg leads with 64 headquartered companies, followed by Bertrange (8) and Windhof (6).

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 2,109 verified decision-maker contacts tracked across these 139 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.