Company lists · Data refreshed September 2026

Top 25 Managed software development companies based in France

Name: Managed 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 5, 2026 806 companies tracked

RevenueBase identified 806 managed software development companies headquartered in France as of September 2026 and tracks 9,220 professional contacts across them, including 2,550 with verified work emails and 347 with mobile numbers. Paris is the largest hub.

This list covers managed 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 5, 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 5, 2026 86% judged on-target in blind review

806Companies

9,220Contacts tracked

2,550Verified emails

347Mobile numbers

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The 25 largest managed software development companies based in France

Ranked by team size

Top 25 of 806 managed software development companies based in France, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names managed 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	IGAIndirect evidence	Malakoff, FranceHQ checked Sep 5, 2026	n/a	1,530
	“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 5, 2026
2	CELADPartial evidence	Toulouse, FranceHQ checked Sep 5, 2026	1,001-5,000	570
	“Consulting and Engineering in innovative technology Celad is a global software engineering company with over 1200 engineers.” Source: company website · checked Sep 5, 2026
3	HENIXPartial evidence	Montrouge, FranceHQ checked Sep 5, 2026	201-500	277
	“Founded in 1998, Henix is positioned as a leading trusted third party among independent French pure player digital services companies and an expert in software quality…” Source: company website · checked Sep 5, 2026
4	OuidouIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	252
	“Fondée en 2017, Ouidou est une entreprise de services du numérique regroupant plus de 250 collaborateurs.” Source: company website · checked Sep 5, 2026
5	AvistoStrong evidence	Valbonne, FranceHQ checked Sep 5, 2026	201-500	226
	“The software development: your passion, our profession.” Source: company website · checked Sep 5, 2026
6	AXYUSIndirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 5, 2026	51-200	170
	“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 5, 2026
7	Groupe KEY ConsultingIndirect evidence	Suresnes, FranceHQ checked Sep 5, 2026	51-200	128
	“Notre raison d'être est d'accompagner l'évolution des usages de nos clients (startup, éditeurs, grands comptes) grâce à l'impact de nos ingénieurs IT.” Source: company website · checked Sep 5, 2026
8	TrituxIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	108
	“Depuis sa création en 2006, TRITUX a développé une expertise et un savoir faire lui permettant de mener à bien tous ses projets de l’amont à l’aval.” Source: company website · checked Sep 5, 2026
9	CastelisIndirect evidence	Ivry Sur Seine, FranceHQ checked Sep 5, 2026	51-200	97
	“Castelis, c'est l'histoire d'une entreprise en croissance continue.” Source: company website · checked Sep 5, 2026
10	Bharti Soft Tech Pvt. LTDIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	97
	“Bharti Soft Tech Pvt.” Source: company website · checked Sep 5, 2026
11	The CodingmachinePartial evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	93
	“The Coding Machine is an IT company that provides bespoke web & mobile development.” Source: company website · checked Sep 5, 2026
12	6tmIndirect evidence	Rennes, FranceHQ checked Sep 5, 2026	51-200	91
	“6TM accompagne ses clients vers un monde toujours plus communicant grâce à ses solutions web, mobiles et logiciels.” Source: company website · checked Sep 5, 2026
13	4shIndirect evidence	Le Haillan, FranceHQ checked Sep 5, 2026	51-200	85
	“4SH est une entreprise de services du numérique.” Source: company website · checked Sep 5, 2026
14	SERLIIndirect evidence	Chasseneuil-du-poitou, FranceHQ checked Sep 5, 2026	51-200	78
	“If you’re looking for a team who are up to the challenges of your project, you found it!” Source: company website · checked Sep 5, 2026
15	BocasayIndirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 5, 2026	51-200	75
	“BOCASAY est une entreprise de services du numérique (ESN / SSII) spécialisée dans le développement web et applicatif.” Source: company website · checked Sep 5, 2026
16	LIKSIIndirect evidence	Rennes, FranceHQ checked Sep 5, 2026	11-50	61
	“LIKSI est une société de développement logiciel, basée à Rennes et Nantes fondée par 4 ingénieurs passionnés et offrant une haute qualité de service.” Source: company website · checked Sep 5, 2026
17	BILOGIndirect evidence	Versailles, FranceHQ checked Sep 5, 2026	51-200	51
	“Bilog SAS est une ESN basée à Versailles qui, forte de ses plus de 530 projets réalisés (à l'été 2016), propose aux éditeurs de logiciels et aux ETI, des compétences dans la…” Source: company website · checked Sep 5, 2026
18	Groupe Koncept KometIndirect evidence	Toulouse, FranceHQ checked Sep 5, 2026	51-200	50
	“Le Groupe Koncept Komet, partenaire de votre croissance numérique!” Source: company website · checked Sep 5, 2026
19	IbisdevPartial evidence	París, FranceHQ checked Sep 5, 2026	51-200	49
	“We are a high-performance software company with offices in Paris, Barcelona, and Buenos Aires.” Source: company website · checked Sep 5, 2026
20	GroupefboIndirect evidence	La Roche-sur-yon, FranceHQ checked Sep 5, 2026	11-50	42
	“Le GroupeFBO est l'un des leaders du développement informatique en Vendée.” Source: company website · checked Sep 5, 2026
21	DIJIIndirect evidence	Levallois-perret, FranceHQ checked Sep 5, 2026	51-200	42
	“We are diji.” Source: company website · checked Sep 5, 2026
22	IGM SASIndirect evidence	Saran, FranceHQ checked Sep 5, 2026	51-200	39
	“iGM est une SSII créée en 1993 située à Saran dans l'agglomération orléanaise.” Source: company website · checked Sep 5, 2026
23	MAX Digital ServicesPartial evidence	Rennes, FranceHQ checked Sep 5, 2026	11-50	36
	“MAX DS est une entreprise de services numériques basée sur un modèle collaboratif: le management 3.0 appliqué à une société de services!” Source: company website · checked Sep 5, 2026
24	PoyesisIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	36
	“Poyesis est une agence digitale spécialisée dans la conception et le développement de solutions web, mobiles et IA sur mesure.” Source: company website · checked Sep 5, 2026
25	ITS FutureIndirect evidence	Schiltigheim, FranceHQ checked Sep 5, 2026	11-50	35
	“Qui sommes-nous?” Source: company website · checked Sep 5, 2026

Showing 25 of 806 managed software development companies based in France

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Managed software development companies based in France at a glance

As of Sep 5, 2026

1-10Median size (employees)

ParisLargest hub · 163 HQs

347Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

594

11-50

161

51-200

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

2,387

31–60

141

61–90

90–180

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 managed 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 “managed 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 managed 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, 2,550 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 5, 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.

Managed software development companies by metro

Managed software development companies in Paris163
Managed software development companies in Lyon31

Frequently asked

How many managed software development companies are there based in France?

RevenueBase identified 806 managed 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?

IGA, headquartered in Malakoff, tops this list with the largest team on record.

Which city has the most managed software development companies?

Paris leads with 163 headquartered companies, followed by Lyon (31) and Toulouse (24).

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 2,550 verified decision-maker contacts tracked across these 806 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 5, 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 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.