Company lists · Data refreshed September 2026

Top 25 Enterprise software modernization firms based in France

Name: Enterprise software modernization firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 290 companies tracked

RevenueBase identified 290 enterprise software modernization firms headquartered in France as of September 2026 and tracks 3,512 professional contacts across them, including 1,194 with verified work emails. Paris is the largest hub.

This list covers enterprise software modernization firms 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 28, 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 28, 2026 86% judged on-target in blind review

290Companies

3,512Contacts tracked

1,194Verified emails

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The 25 largest enterprise software modernization firms based in France

Ranked by team size

Top 25 of 290 enterprise software modernization firms based in France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise software modernization 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	Kaizen Solutions KZS	Indirect evidence	Montbonnot-saint-martin, FranceHQ checked Sep 28, 2026	201-500	261 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 28, 2026
2	AXYUS	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 28, 2026	51-200	170 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 28, 2026
3	Adservio	Indirect evidence	Puteaux, FranceHQ checked Sep 28, 2026	201-500	161 contacts →
	Indirect evidence “We build a resilient digital experience.” Source: RevenueBase Database · checked Sep 28, 2026
4	Harington	Indirect evidence	Levallois-perret, FranceHQ checked Sep 28, 2026	201-500	151 contacts →
	Indirect evidence “Harington est un cabinet de conseil et de services technologiques créée en 2008.” Source: RevenueBase Database · checked Sep 28, 2026
5	IS Technologies	Indirect evidence	Courbevoie Cedex, FranceHQ checked Sep 28, 2026	n/a	127 contacts →
	Indirect evidence “IS Technologies est une société de conseils et de services en informatique basée à La Défense.” Source: RevenueBase Database · checked Sep 28, 2026
6	Spark-It	Partial evidence	La Défense 5, FranceHQ checked Sep 28, 2026	51-200	105 contacts →
	Partial evidence “Spark-it is an expert in software architecture.” Source: RevenueBase Database · checked Sep 28, 2026
7	Novahé	Indirect evidence	Saint Cloud Cedex, FranceHQ checked Sep 28, 2026	51-200	92 contacts →
	Indirect evidence “En 2018, AS-PC, EVEA TECHNOLOGY et INETD CONSULTING deviennent NOVAHE < Novahé accompagne les ETIs et les Grands Comptes dans l’optimisation et l’urbanisation de leur Système…” Source: RevenueBase Database · checked Sep 28, 2026
8	Simphonis	Indirect evidence	Beaucouzé, FranceHQ checked Sep 28, 2026	51-200	84 contacts →
	Indirect evidence “Unlock Your Digital Potential with SIMPHONIS!” Source: RevenueBase Database · checked Sep 28, 2026
9	SERLI	Indirect evidence	Chasseneuil-du-poitou, FranceHQ checked Sep 28, 2026	51-200	78 contacts →
	Indirect evidence “If you’re looking for a team who are up to the challenges of your project, you found it!” Source: RevenueBase Database · checked Sep 28, 2026
10	Axopen	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	51-200	61 contacts →
	Indirect evidence “L'entreprise Axopen propose toute une gamme de produits et services informatique allant du conseil en système d'informations, développement de solutions sur mesure ou intégration…” Source: RevenueBase Database · checked Sep 28, 2026
11	Oo2 Formations	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	57 contacts →
	Indirect evidence “Nous sommes une société spécialisée dans les domaines de l’informatique et des nouvelles technologies : Nous accompagnons les entreprises dans leur nécessaire processus de veille…” Source: RevenueBase Database · checked Sep 28, 2026
12	Syspertec Group	Partial evidence	Saint-cloud, FranceHQ checked Sep 28, 2026	11-50	53 contacts →
	Partial evidence “Since 1993, Syspertec Group has been developing software solutions designed to simplify information system integration and modernize complex technical environments.” Source: RevenueBase Database · checked Sep 28, 2026
13	BILOG	Indirect evidence	Versailles, FranceHQ checked Sep 28, 2026	51-200	51 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
14	Elipce Solutions, Votre Spécialiste Logiciel & Data	Indirect evidence	Valence, FranceHQ checked Sep 28, 2026	11-50	47 contacts →
	Indirect evidence “Chez Elipce Solutions, nous concevons, déployons et maintenons des solutions logicielles adaptées à vos enjeux spécifiques, qu'il s'agisse d'outils internes dans tous les…” Source: RevenueBase Database · checked Sep 28, 2026
15	Agilia Technology	Indirect evidence	Entzheim, FranceHQ checked Sep 28, 2026	11-50	47 contacts →
	Indirect evidence “Agilia Technology est une entreprise de services numériques spécialisée dans le conseil et l’expertise technologique.” Source: RevenueBase Database · checked Sep 28, 2026
16	Ootary	Indirect evidence	Soultz-haut-rhin, FranceHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “Simplify your IT projects and accelerate your digital transformation Whether it’s migrating to an ERP system, optimizing your IT infrastructure, or managing data flows… these are…” Source: RevenueBase Database · checked Sep 28, 2026
17	Sinorfi	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	45 contacts →
	Strong evidence “SINORFI is a transformation partner and software publisher specialized in IBM Maximo, Enterprise Asset Management, ESG and data-driven operations.” Source: RevenueBase Database · checked Sep 28, 2026
18	UERP	Strong evidence	Suresnes, FranceHQ checked Sep 28, 2026	11-50	37 contacts →
	Strong evidence “UERP - Unified Enterprise Resource Platform - is a revolutionary software platform.” Source: RevenueBase Database · checked Sep 28, 2026
19	Move Solutions	Partial evidence	69002, FranceHQ checked Sep 28, 2026	51-200	35 contacts →
	Partial evidence “Move Solutions is an IT services company specialized in development and transformation of information systems : Data Migration, Modernization and Maintenance.” Source: RevenueBase Database · checked Sep 28, 2026
20	Cloudnausor Technologies	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	34 contacts →
	Strong evidence “Cloudnausor Technologies is a forward-thinking technology company specializing in cloud-native digital transformation, enterprise software solutions, and AI-driven innovations.” Source: RevenueBase Database · checked Sep 28, 2026
21	Gaia Mini Systemes	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “Nous sommes des experts en #IBMi depuis plus de 30 ans.” Source: RevenueBase Database · checked Sep 28, 2026
22	I-Lead Consulting	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	31 contacts →
	Indirect evidence “Créée en 2015, I-Lead Consulting est un cabinet de conseil IT.” Source: RevenueBase Database · checked Sep 28, 2026
23	EVB	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	31 contacts →
	Indirect evidence “evoleen.byGecko est une structure consacrée aux transformations profondes des systèmes d’Information.” Source: RevenueBase Database · checked Sep 28, 2026
24	JLL Solutions IT	Indirect evidence	Bois-colombes, FranceHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “JLL Solutions IT est une entreprise de services informatiques spécialisée dans la modernisation des environnements de travail, le conseil et le déploiement des infrastructures…” Source: RevenueBase Database · checked Sep 28, 2026
25	PIT	Indirect evidence	Lille, FranceHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “Pit est une ESN lilloise, créée en 2015 (anciennement Progress‑IT), composée de développeurs, product managers et Scrum Masters.” Source: RevenueBase Database · checked Sep 28, 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: enterprise software modernization 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 enterprise software modernization firms.
Partial evidence: Its own public description names part of enterprise software modernization firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise software modernization 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 290 enterprise software modernization firms based in France

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Enterprise software modernization firms based in France at a glance

As of Sep 28, 2026

34.0%Verified-email coverage

12.1Average contacts per company

1-10Median size (employees)

24.8%Largest-city concentration · Paris

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

179

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 290 companies.

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 enterprise software modernization 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 France whose own description of what they do matches “enterprise software modernization 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 enterprise software modernization 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 enterprise software modernization firms, 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, 1,194 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 28, 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.

Enterprise software modernization firms by metro

Enterprise software modernization firms in Paris72

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 enterprise software modernization 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 enterprise software modernization firms are there based in France?

RevenueBase identified 290 enterprise software modernization firms 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?

Kaizen Solutions KZS, headquartered in Montbonnot-Saint-Martin, tops this list with the largest team on record.

Which city has the most enterprise software modernization firms?

Paris leads with 72 headquartered companies, followed by Lyon (14) and Courbevoie (7).

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 1,194 verified decision-maker contacts tracked across these 290 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 28, 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.