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, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

1,737Companies

33,800Contacts tracked

12,373Verified emails

835Mobile numbers

Unlock all 1,737 companies Free signup · no credit card · 500 free credits

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. Evidence rates how directly each company's own description names lansa software development companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Groupe SIIIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	10001+	4,992
	“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: company website · checked Sep 4, 2026
2	InfotelIndirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 4, 2026	1,001-5,000	1,764
	“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: company website · checked Sep 4, 2026
3	IGAIndirect evidence	Malakoff, FranceHQ checked Sep 4, 2026	n/a	1,528
	“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: company website · checked Sep 4, 2026
4	CatamaniaIndirect evidence	Saint-herblain, FranceHQ checked Sep 4, 2026	1,001-5,000	712
	“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: company website · checked Sep 4, 2026
5	CoexyaIndirect evidence	Saint-didier-au-mont-d'or, FranceHQ checked Sep 4, 2026	501-1,000	672
	“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: company website · checked Sep 4, 2026
6	KlanikIndirect evidence	Marseille, FranceHQ checked Sep 4, 2026	501-1,000	594
	“KLANIK is a consulting company specialized in IT Engineering which accompanies its partners in their digital and technological projects.” Source: company website · checked Sep 4, 2026
7	DCS EasywareIndirect evidence	Lyon, FranceHQ checked Sep 4, 2026	1,001-5,000	535
	“Filiale du Groupe SYNERGIE, DCS SYNERGIE GROUP capitalise sur son histoire pour accompagner chaque jour les enjeux IT de ses clients.” Source: company website · checked Sep 4, 2026
8	ObjectwareIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	394
	“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: company website · checked Sep 4, 2026
9	LÙKLAIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	332
	“Together, aiming higher and going further to unlock your potential.” Source: company website · checked Sep 4, 2026
10	AmiltoneIndirect evidence	Villeurbanne, FranceHQ checked Sep 4, 2026	201-500	312
	“Bienvenue chez Amiltone.” Source: company website · checked Sep 4, 2026
11	InfogeneIndirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 4, 2026	501-1,000	287
	“INFOGENE est une ESN spécialisée dans 3 domaines principaux (en AMOA et MOE): DIGITAL: Notre savoir faire : Conseil, architecture logiciel, conception, développement, maintenance…” Source: company website · checked Sep 4, 2026
12	Kaizen Solutions KZSIndirect evidence	Montbonnot-saint-martin, FranceHQ checked Sep 4, 2026	201-500	268
	“Nous sommes une ESN (entreprise de services numériques) spécialisée dans la conception, le développement et la maintenabilité de solutions informatiques, techniques et…” Source: company website · checked Sep 4, 2026
13	OuidouIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	201-500	257
	“Fondée en 2017, Ouidou est une entreprise de services du numérique regroupant plus de 250 collaborateurs.” Source: company website · checked Sep 4, 2026
14	Dimo SoftwarePartial evidence	Limonest, FranceHQ checked Sep 4, 2026	51-200	251
	“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: company website · checked Sep 4, 2026
15	Atol CDIndirect evidence	Gevrey-chambertin, FranceHQ checked Sep 4, 2026	201-500	236
	“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: company website · checked Sep 4, 2026
16	YounupIndirect evidence	Nantes, FranceHQ checked Sep 4, 2026	201-500	234
	“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: company website · checked Sep 4, 2026
17	AvistoStrong evidence	Valbonne, FranceHQ checked Sep 4, 2026	201-500	231
	“The software development: your passion, our profession.” Source: company website · checked Sep 4, 2026
18	XELYAIndirect evidence	Saint-Cloud, FranceHQ checked Sep 4, 2026	201-500	230
	“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: company website · checked Sep 4, 2026
19	WebnetIndirect evidence	Sèvres, FranceHQ checked Sep 4, 2026	51-200	217
	“Créée en 1996, Webnet est intégrateur de solutions internet.” Source: company website · checked Sep 4, 2026
20	EdifixioIndirect evidence	Bezons, FranceHQ checked Sep 4, 2026	201-500	217
	“Edifixio is an IT services company working mainly for large international companies, in the areas of Industry, Retail, Insurance and Services.” Source: company website · checked Sep 4, 2026
21	EasyteamIndirect evidence	Saint-cloud, FranceHQ checked Sep 4, 2026	201-500	191
	“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: company website · checked Sep 4, 2026
22	Acelys Services NumériquesIndirect evidence	Montpellier, FranceHQ checked Sep 4, 2026	51-200	179
	“Créée en 1997, Acelys Services Numériques est une entreprise de services numériques (ESN) basée en Occitanie.” Source: company website · checked Sep 4, 2026
23	MARGOIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	201-500	174
	“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: company website · checked Sep 4, 2026
24	AXYUSIndirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 4, 2026	51-200	172
	“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: company website · checked Sep 4, 2026

Showing 24 of 1,737 lansa software development companies based in France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 12,373 reachable decision-makers.

Free signup · no credit card

See all 1,737 companies

Lansa software development companies based in France at a glance

As of Sep 4, 2026

1-10Median size (employees)

ParisLargest hub · 382 HQs

835Contacts with mobile numbers

Sep 4, 2026Data 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+

Verified emails by last verification

0–30

31–60

944

61–90

6,913

90–180

4,464

180+

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 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 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.
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 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, 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

Frequently asked

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.

Ready to reach these companies? Verified emails and direct dials for all 1,737 lansa software development companies based in France. Start with a free account, no credit card.

Get the full list

Related lists

Lansa software development companies by geography

Browse the directory

Browse: Companies home · All France lists · All Lansa software development companies lists · New lists

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.