Company lists · Data refreshed September 2026

Top 24 Lansa software development companies based in France

Name: Lansa software development companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 1,737 companies tracked

RevenueBase identified 1,737 lansa software development companies headquartered in France as of September 2026 and tracks 33,800 professional contacts across them, including 12,373 with verified work emails and 835 with mobile numbers. Paris is the largest hub.

This list covers lansa software development companies headquartered in France, 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 4, 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 4, 2026 86% judged on-target in blind review

1,737Companies

33,800Contacts tracked

12,373Verified emails

835Mobile numbers

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The 24 largest lansa software development companies based in France

Ranked by team size

Top 24 of 1,737 lansa software development companies based in France, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to lansa software development companies: 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	Groupe SII	Indirect evidence	Paris, FranceHQ checked Sep 4, 2026	10001+	4,992 contacts →
	Indirect evidence “Le groupe SII est une société d’ingénierie et de conseil en technologies (ICT) et une entreprise de services numériques (ESN) créée en 1979 par Bernard HUVÉ, ingénieur de…” Source: RevenueBase Database · checked Sep 4, 2026
2	Infotel	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 4, 2026	1,001-5,000	1,764 contacts →
	Indirect evidence “Infotel accompagne les directions Informatiques et Métiers des grandes entreprises depuis 45 ans (Airbus, Air France, PSA, BNP Paribas, Banque de France ou encore BPCE, etc.).” Source: RevenueBase Database · checked Sep 4, 2026
3	IGA	Indirect evidence	Malakoff, FranceHQ checked Sep 4, 2026	n/a	1,528 contacts →
	Indirect evidence “Métiers - Edition de composants/modules logiciels pour les métiers de l’assurance, du voyage et du négoce- Création de solutions spécifiques pour le compte des clients- Suivi et…” Source: RevenueBase Database · checked Sep 4, 2026
4	Catamania	Indirect evidence	Saint-herblain, FranceHQ checked Sep 4, 2026	1,001-5,000	712 contacts →
	Indirect evidence “Depuis plus de 25 ans, Catamania fait partie des Entreprises de Services du Numérique dynamiques et innovantes qui s’appuie sur ses expertises métiers, techniques et…” Source: RevenueBase Database · checked Sep 4, 2026
5	Coexya	Indirect evidence	Saint-didier-au-mont-d'or, FranceHQ checked Sep 4, 2026	501-1,000	672 contacts →
	Indirect evidence “Coexya has been an independent entity since October 1st 2020 when it was acquired by the operational management team with the support of the European private equity group Argos…” Source: RevenueBase Database · checked Sep 4, 2026
6	Klanik	Indirect evidence	Marseille, FranceHQ checked Sep 4, 2026	501-1,000	594 contacts →
	Indirect evidence “KLANIK is a consulting company specialized in IT Engineering which accompanies its partners in their digital and technological projects.” Source: RevenueBase Database · checked Sep 4, 2026
7	DCS Easyware	Indirect evidence	Lyon, FranceHQ checked Sep 4, 2026	1,001-5,000	535 contacts →
	Indirect evidence “Filiale du Groupe SYNERGIE, DCS SYNERGIE GROUP capitalise sur son histoire pour accompagner chaque jour les enjeux IT de ses clients.” Source: RevenueBase Database · checked Sep 4, 2026
8	Objectware	Indirect evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	394 contacts →
	Indirect evidence “Objectware Group is an IT Services Company (or ESN: Entreprise de Services du Numérique), founded in and dedicated to consulting and IT system engineering.” Source: RevenueBase Database · checked Sep 4, 2026
9	LÙKLA	Indirect evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	332 contacts →
	Indirect evidence “Together, aiming higher and going further to unlock your potential.” Source: RevenueBase Database · checked Sep 4, 2026
10	Amiltone	Indirect evidence	Villeurbanne, FranceHQ checked Sep 4, 2026	201-500	312 contacts →
	Indirect evidence “Bienvenue chez Amiltone.” Source: RevenueBase Database · checked Sep 4, 2026
11	Infogene	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 4, 2026	501-1,000	287 contacts →
	Indirect evidence “INFOGENE est une ESN spécialisée dans 3 domaines principaux (en AMOA et MOE): DIGITAL: Notre savoir faire : Conseil, architecture logiciel, conception, développement, maintenance…” Source: RevenueBase Database · checked Sep 4, 2026
12	Kaizen Solutions KZS	Indirect evidence	Montbonnot-saint-martin, FranceHQ checked Sep 4, 2026	201-500	268 contacts →
	Indirect evidence “Nous sommes une ESN (entreprise de services numériques) spécialisée dans la conception, le développement et la maintenabilité de solutions informatiques, techniques et…” Source: RevenueBase Database · checked Sep 4, 2026
13	Ouidou	Indirect evidence	Paris, FranceHQ checked Sep 4, 2026	201-500	257 contacts →
	Indirect evidence “Fondée en 2017, Ouidou est une entreprise de services du numérique regroupant plus de 250 collaborateurs.” Source: RevenueBase Database · checked Sep 4, 2026
14	Dimo Software	Partial evidence	Limonest, FranceHQ checked Sep 4, 2026	51-200	251 contacts →
	Partial evidence “Depuis 21 ans, DIMO Software conjugue ses deux métiers d’éditeur et intégrateur de solutions de gestion au service d’une même mission : apporter à ses clients les meilleures…” Source: RevenueBase Database · checked Sep 4, 2026
15	Atol CD	Indirect evidence	Gevrey-chambertin, FranceHQ checked Sep 4, 2026	201-500	236 contacts →
	Indirect evidence “Misant sur l’innovation numérique pour accompagner ses clients dans le développement de leur compétitivité, ATOL CD conçoit et développe des applications métier au profit…” Source: RevenueBase Database · checked Sep 4, 2026
16	Younup	Indirect evidence	Nantes, FranceHQ checked Sep 4, 2026	201-500	234 contacts →
	Indirect evidence “Bienvenue chez Younup : la néo-ESN, agile, humaine, faite de passionnés, avec une ambition simple et forte : remettre l’humain et l’expertise technique au cœur du service IT.” Source: RevenueBase Database · checked Sep 4, 2026
17	Avisto	Strong evidence	Valbonne, FranceHQ checked Sep 4, 2026	201-500	231 contacts →
	Strong evidence “The software development: your passion, our profession.” Source: RevenueBase Database · checked Sep 4, 2026
18	XELYA	Indirect evidence	Saint-Cloud, FranceHQ checked Sep 4, 2026	201-500	230 contacts →
	Indirect evidence “Editeur de logiciels métiers SaaS, nous fournissons des solutions technologiques innovantes, du conseil et de la formation pour dompter la complexité du métier de nos clients.” Source: RevenueBase Database · checked Sep 4, 2026
19	Webnet	Indirect evidence	Sèvres, FranceHQ checked Sep 4, 2026	51-200	217 contacts →
	Indirect evidence “Créée en 1996, Webnet est intégrateur de solutions internet.” Source: RevenueBase Database · checked Sep 4, 2026
20	Edifixio	Indirect evidence	Bezons, FranceHQ checked Sep 4, 2026	201-500	217 contacts →
	Indirect evidence “Edifixio is an IT services company working mainly for large international companies, in the areas of Industry, Retail, Insurance and Services.” Source: RevenueBase Database · checked Sep 4, 2026
21	Easyteam	Indirect evidence	Saint-cloud, FranceHQ checked Sep 4, 2026	201-500	191 contacts →
	Indirect evidence “EASYTEAM est un acteur global de la fourniture, la mise en œuvre, l’exploitation, l’accompagnement et la gestion des solutions Oracle pour les entreprises et administrations…” Source: RevenueBase Database · checked Sep 4, 2026
22	Acelys Services Numériques	Indirect evidence	Montpellier, FranceHQ checked Sep 4, 2026	51-200	179 contacts →
	Indirect evidence “Créée en 1997, Acelys Services Numériques est une entreprise de services numériques (ESN) basée en Occitanie.” Source: RevenueBase Database · checked Sep 4, 2026
23	MARGO	Indirect evidence	Paris, FranceHQ checked Sep 4, 2026	201-500	174 contacts →
	Indirect evidence “More than a simple IT consulting group, MARGO is an alchemy of talents with constantly enriched expertise, always encouraged to be dynamic and to flourish.” Source: RevenueBase Database · checked Sep 4, 2026
24	AXYUS	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 4, 2026	51-200	172 contacts →
	Indirect evidence “Une SSII avec de vraies valeurs."S'engager au forfait, respecter, les attentes de nos clients, leur budget en favorisant notamment la réutilisation affichée de nos composants…” Source: RevenueBase Database · checked Sep 4, 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: lansa software development companies. 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 lansa software development companies.
Partial evidence: Its own public description names part of lansa software development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name lansa software development companies. 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 24 of 1,737 lansa software development companies based in France

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Lansa software development companies based in France at a glance

As of Sep 4, 2026

36.6%Verified-email coverage

2.5%Mobile-number coverage

19.5Average contacts per company

1-10Median size (employees)

22.0%Largest-city concentration · Paris

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

1,051

11-50

457

51-200

142

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

94431–60

6,91361–90

4,46490–180

52180+

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 lansa software development companies, 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 France whose own description of what they do matches “lansa software development companies”. 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 lansa software development companies), 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 lansa software development companies, and records with no verified work email. Companies headquartered outside France 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, 12,373 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.

Lansa software development companies by metro

Lansa software development companies in Paris382
Lansa software development companies in Lyon67
Lansa software development companies in Toulouse37
Lansa software development companies in Lille30
Lansa software development companies in Bordeaux29

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 lansa software development companies, 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 lansa software development companies are there based in France?

RevenueBase identified 1,737 lansa software development companies headquartered in France 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?

Groupe SII, headquartered in Paris, tops this list with the largest team on record.

Which city has the most lansa software development companies?

Paris leads with 382 headquartered companies, followed by Lyon (67) and Toulouse (37).

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 12,373 verified decision-maker contacts tracked across these 1,737 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 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.