Company lists · Data refreshed September 2026

Top 25 Enterprise application modernization firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 140 companies tracked

RevenueBase identified 140 enterprise application modernization firms headquartered in France as of September 2026 and tracks 1,435 professional contacts across them, including 487 with verified work emails and 39 with mobile numbers. Paris is the largest hub.

This list covers enterprise application 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

140Companies

1,435Contacts tracked

487Verified emails

39Mobile numbers

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The 25 largest enterprise application modernization firms based in France

Ranked by team size

Top 25 of 140 enterprise application modernization firms based in France, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise application 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	Adservio	Indirect evidence	Puteaux, France	201-500	160 contacts →
	Indirect evidence “We build a resilient digital experience.” Source: RevenueBase Database · checked Sep 2, 2026
2	Harington	Indirect evidence	Levallois-Perret, France	201-500	154 contacts →
	Indirect evidence “Harington est un cabinet de conseil et de services technologiques créée en 2008.” Source: RevenueBase Database · checked Sep 2, 2026
3	Macro 4	Strong evidence	Boulogne Billancourt, France	201-500	135 contacts →
	Strong evidence “Macro 4, a division of UNICOM Global, provides software solutions for customer communications, information management, application decommissioning, mainframe modernization and…” Source: RevenueBase Database · checked Sep 2, 2026
4	Simphonis	Indirect evidence	La Roche-Sur-Yon, France	51-200	84 contacts →
	Indirect evidence “Unlock Your Digital Potential with SIMPHONIS!” Source: RevenueBase Database · checked Sep 2, 2026
5	Syspertec Group	Indirect evidence	Saint-Cloud, France	11-50	53 contacts →
	Indirect 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 2, 2026
6	Cloudnausor Technologies	Partial evidence	Paris, France	51-200	36 contacts →
	Partial 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 2, 2026
7	Move Solutions	Partial evidence	Lyon, France	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 2, 2026
8	JLL Solutions IT	Indirect evidence	Bois-Colombes, France	11-50	31 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 2, 2026
9	Énéance	Partial evidence	Paris, France	11-50	31 contacts →
	Partial evidence “Nous sommes Énéance, spécialiste de la conception et du développement d’applications web et mobiles sur mesure.” Source: RevenueBase Database · checked Sep 2, 2026
10	ATM Consulting	Indirect evidence	Valence, France	11-50	31 contacts →
	Indirect evidence “Société de conseil informatique, ATM Consulting vous accompagne dans vos projets d'organisation et de modernisation de votre système d'information.” Source: RevenueBase Database · checked Sep 2, 2026
11	Gaia Mini Systemes	Indirect evidence	Lyon, France	11-50	30 contacts →
	Indirect evidence “Nous sommes des experts en #IBMi depuis plus de 30 ans.” Source: RevenueBase Database · checked Sep 2, 2026
12	PIT	Indirect evidence	Lille, France	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 2, 2026
13	Devoteam Nexdigital	Indirect evidence	Levallois-Perret, France	51-200	27 contacts →
	Indirect evidence “Devoteam nexDigital est une société de conseil IT spécialisée dans la modernisation et la transformation des Systèmes d'Information.” Source: RevenueBase Database · checked Sep 2, 2026
14	Aptineo	Indirect evidence	Paris, France	51-200	27 contacts →
	Indirect evidence “APTINEO, cabinet de conseil en SI, accompagne avec succès de grands groupes depuis 2008.” Source: RevenueBase Database · checked Sep 2, 2026
15	Belharra Numérique	Partial evidence	Bassussarry, France	51-200	20 contacts →
	Partial evidence “BELHARRA est une Entreprise de Services du Numérique spécialisée dans l'ingénierie informatique décisionnelle, les solutions collaboratives et le développement d'applications.” Source: RevenueBase Database · checked Sep 2, 2026
16	devo.to	Partial evidence	Cergy, France	1-10	20 contacts →
	Partial evidence “Spécialiste du SI, nous accompagnons nos clients dans leurs projets de développement d'applications métiers sur mesure #Web,#App,#Mobile.” Source: RevenueBase Database · checked Sep 2, 2026
17	Euraxiel	Indirect evidence	Paris, France	11-50	17 contacts →
	Indirect evidence “Notre ADN : la qualité des développements et l’industrialisation des processus.” Source: RevenueBase Database · checked Sep 2, 2026
18	clicsoft.io	Indirect evidence	France	11-50	15 contacts →
	Indirect evidence “TRANSFORMATION DIGITALE / MODERNISATION DE PLATEFORME Nous vous aidons à améliorer l'expérience de vos clients et augmenter votre efficacité opérationnelle grâce au digital.” Source: RevenueBase Database · checked Sep 2, 2026
19	Winzana	Indirect evidence	Valence, France	11-50	15 contacts →
	Indirect evidence “Vous ne trouvez pas de développeurs expérimentés pour mener à bien votre projet?” Source: RevenueBase Database · checked Sep 2, 2026
20	Energy WAY	Indirect evidence	Paris, France	11-50	15 contacts →
	Indirect evidence “Energy Way est une ESN spécialisée dans la modernisation et la transformation digitale des systèmes d’information critiques, avec une expertise reconnue en environnements…” Source: RevenueBase Database · checked Sep 2, 2026
21	Oriolis	Partial evidence	Palaiseau, France	11-50	12 contacts →
	Partial evidence “Oriolis est une ESN spécialisée dans la maintenance et la conception d'applications métiers sur-mesure.” Source: RevenueBase Database · checked Sep 2, 2026
22	Albalogic	Partial evidence	Aubagne, France	11-50	12 contacts →
	Partial evidence “DEVELOPPEMENT Conception d’architectures logicielles modernes, robustes et stables selon l’environnement de déploiement de vos applications en tenant compte de vos habitudes…” Source: RevenueBase Database · checked Sep 2, 2026
23	Isphers	Partial evidence	France	11-50	11 contacts →
	Partial evidence “Fondée en 2005, isphers est passée d'une start-up technologique prometteuse à une entreprise mature spécialisée dans le développement applicatif professionnel.” Source: RevenueBase Database · checked Sep 2, 2026
24	Craftmania	Partial evidence	Paris, France	51-200	11 contacts →
	Partial evidence “Dans un marché obsédé par le time-to-market, nous défendons une idée simple : une application n'est pas un livrable, c'est un actif.” Source: RevenueBase Database · checked Sep 2, 2026
25	Zenops	Indirect evidence	Alixan, France	11-50	10 contacts →
	Indirect evidence “Notre expertise technique, nos choix de partenaires technologiques et notre démarche qualité confortent notre engagement à vos côtés.” Source: RevenueBase Database · checked Sep 2, 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 application 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 application modernization firms.
Partial evidence: Its own public description names part of enterprise application 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 application 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 140 enterprise application modernization firms based in France

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Enterprise application modernization firms based in France at a glance

As of Sep 2, 2026

33.9%Verified-email coverage

2.7%Mobile-number coverage

10.2Average contacts per company

1-10Median size (employees)

30.7%Largest-city concentration · Paris

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 application 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 application 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 application 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 application 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, 487 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 2, 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 application modernization firms by metro

Enterprise application modernization firms in Paris43

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 application 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 application modernization firms are there based in France?

RevenueBase identified 140 enterprise application 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?

Adservio, headquartered in Puteaux, tops this list with the largest team on record.

Which city has the most enterprise application modernization firms?

Paris leads with 43 headquartered companies, followed by Lyon (7) and Courbevoie (5).

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 487 verified decision-maker contacts tracked across these 140 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 2, 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.