Company lists · Data refreshed August 2026
Top 25 Application development consulting firms based in Luxembourg
RevenueBase identified 72 application development consulting firms headquartered in Luxembourg as of August 2026 and tracks 3,456 professional contacts across them, including 852 with verified work emails and 77 with mobile numbers. Luxembourg is the largest hub.
This list covers application development 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 August 31, 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 application development consulting firms based in Luxembourg
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,170 contacts → | ||||
Indirect evidence “Gfi became Inetum in 2020.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 2 | 310 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 Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 3 | 161 contacts → | ||||
Indirect evidence “At Ausy, we’ve been providing technological solutions for over 30 years.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 4 | 99 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 Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 5 | 95 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 Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 6 | 58 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 Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 7 | 56 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 8 | 56 contacts → | ||||
Partial evidence “Forty2 is a Swiss based consulting company with Offices Switzerland, Luxembourg, Portugal, Spain, Singapore and Philippines with a decade of professional experience in Financial…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 9 | 41 contacts → | ||||
Indirect evidence “Based in Luxembourg and Germany, Logos is a recognized company of the IT sector.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 10 | 39 contacts → | ||||
Indirect evidence “OXiane est un cabinet d’ingénierie, de conseil et de formation technologique.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 11 | 32 contacts → | ||||
Partial evidence “We are experts, providing services to help you create your mobile app, from inception to development, maintenance & marketing.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 12 | 20 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 Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 13 | 19 contacts → | ||||
Indirect evidence “Xpectis is a leading provider of IT Solutions & Services to an expanding range of customers.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 15 | 15 contacts → | ||||
Partial evidence “BIAC Log est un bureau d’informatique spécialisé dans la conception d’applications de gestion stables et fiables qui s’adaptent aux spécificités et aux besoins de l’entreprise…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Partial evidence “ARHS Consulting is a division of ARHS Group Since 2007, we help public organisations and private companies to drive value from technology, turning technology potentialities into…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 17 | 7 contacts → | ||||
Indirect evidence “At beonti, we're dedicated to providing our clients with the highest level of service and expertise.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Indirect evidence “Convergence IT est une société de services qui regroupe des compétences spécialisées dans le conseil et l’installation de solutions informatiques orientées cloud.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 contacts → | ||||
Indirect evidence “IT-Services & IT-Beratung | Services informatiques & Conseil IT Ihre IT – modern, sicher, effizient.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 contacts → | ||||
Indirect evidence “Developing and supporting IT Transformation projects and solutions” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 21 | 6 contacts → | ||||
Strong evidence “MIIND is committed to deliver the best value to its customers by providing a range of various IT services in consulting, development and operations.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Indirect evidence “What about your next step?” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Partial evidence “Luxat, a Luxembourg-based IT consulting firm, specializes in a range of services tailored to meet the evolving needs of its clients.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Indirect evidence “Cartesoft: A team of experts helping you achieve your projects.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Partial evidence “Our expertise is IT development.” Source: RevenueBase Database · checked Aug 31, 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: application development 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 application development consulting firms.
- Partial evidence
- Its own public description names part of application development consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name application development 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 72 application development consulting firms based in Luxembourg
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Application development consulting firms based in Luxembourg at a glance
As of Aug 31, 2026Companies by employee count
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 application development 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 “application development 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 application development 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 application development 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, 852 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 August 31, 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.
Application development consulting firms by metro
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 application development 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 application development consulting firms are there based in Luxembourg?
RevenueBase identified 72 application development consulting firms headquartered in Luxembourg as of August 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?
GFI World, headquartered in Luxembourg, tops this list with the largest team on record.
Which city has the most application development consulting firms?
Luxembourg leads with 26 headquartered companies, followed by Windhof (4) and Steinfort (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 852 verified decision-maker contacts tracked across these 72 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.
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