Company lists · Data refreshed November 2026

Top 25 Legacy app modernization services based in France

Name: Legacy app modernization services based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 165 companies tracked

RevenueBase identified 165 company matches for legacy app modernization services associated with France as of November 2026 and tracks 5,129 professional contacts across them, including 2,371 with verified work emails. Paris is the largest hub.

This list covers company matches for legacy app modernization services associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

165Companies

5,129Contacts tracked

2,371Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest legacy app modernization services based in France

Ranked by team size

Top 25 of 165 company matches for legacy app modernization services based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Infotel	Exact match	Neuilly-sur-seine, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,842 contacts →
	Exact match “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.).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Harington	Exact match	Levallois-perret, FranceHQ recorded Nov 6, 2026	201-500	156 contacts →
	Exact match “Harington est un cabinet de conseil et de services technologiques créée en 2008.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Wemanity Reply Paris	Exact match	Paris, FranceHQ recorded Nov 6, 2026	201-500	155 contacts →
	Exact match “Wemanity Reply is a consulting and delivery firm specialized in technological, organizational, and cultural transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Adservio	Exact match	Puteaux, FranceHQ recorded Nov 6, 2026	201-500	145 contacts →
	Exact match “We build a resilient digital experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Simphonis	Exact match	Beaucouzé, FranceHQ recorded Nov 6, 2026	51-200	82 contacts →
	Exact match “Unlock Your Digital Potential with SIMPHONIS!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Vaganet	Exact match	Velizy-villacoublay, FranceHQ recorded Nov 6, 2026	51-200	79 contacts →
	Exact match “Pionnier du delivery agile depuis 2014, VAGANET met à disposition de ses clients des expertises techniques et fonctionnelles spécialisées dans la transformation et l’actualisation…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Diggers	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	60 contacts →
	Exact match “Diggers est un cabinet de conseil facilitateur de projets et de transformations, spécialisé dans les métiers de l'IT (développement, data & IA, devops, cloud) et une agence de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Agilia Technology	Exact match	Entzheim, FranceHQ recorded Nov 6, 2026	11-50	49 contacts →
	Exact match “Agilia Technology est une entreprise de services numériques spécialisée dans le conseil et l’expertise technologique.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Ootary	Exact match	Soultz-haut-rhin, FranceHQ recorded Nov 6, 2026	11-50	47 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Move Solutions	Exact match	69002, FranceHQ recorded Nov 6, 2026	51-200	37 contacts →
	Exact match “Move Solutions is an IT services company specialized in development and transformation of information systems : Data Migration, Modernization and Maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Management Square	Exact match	Montigny-le-bretonneux, FranceHQ recorded Nov 6, 2026	51-200	33 contacts →
	Exact match “Depuis sa création, Management Square s'est positionné comme un acteur de référence dans l'accompagnement des entreprises face aux défis actuels du monde numérique.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	ATM Consulting	Exact match	Valence, FranceHQ recorded Nov 6, 2026	11-50	32 contacts →
	Exact match “Société de conseil informatique, ATM Consulting vous accompagne dans vos projets d'organisation et de modernisation de votre système d'information.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	JLL Solutions IT	Exact match	Bois-colombes, FranceHQ recorded Nov 6, 2026	11-50	31 contacts →
	Exact match “JLL Solutions IT est une entreprise de services informatiques spécialisée dans la modernisation des environnements de travail, le conseil et le déploiement des infrastructures…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Trend-It	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	29 contacts →
	Exact match “TREND-IT est un cabinet de conseil IT, d’expertise technique et de transformation digitale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	We ARE Beebay	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	28 contacts →
	Exact match “We Are Beebay is an IT consulting agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	PIT	Exact match	Lille, FranceHQ recorded Nov 6, 2026	11-50	27 contacts →
	Exact match “Pit est une ESN lilloise, créée en 2015 (anciennement Progress‑IT), composée de développeurs, product managers et Scrum Masters.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Devoteam Nexdigital	Exact match	Levallois-perret, FranceHQ recorded Nov 6, 2026	51-200	26 contacts →
	Exact match “Devoteam nexDigital est une société de conseil IT spécialisée dans la modernisation et la transformation des Systèmes d'Information.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Euraxiel	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	23 contacts →
	Exact match “Notre ADN : la qualité des développements et l’industrialisation des processus.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	GO Partner	Exact match	Maison Lafitte, FranceHQ recorded Nov 6, 2026	11-50	15 contacts →
	Exact match “Go Partner accompagne ses clients, dans la maintenance de leur systèmes, ainsi que dans les transformations digitales nécessaires.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Energy WAY	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	15 contacts →
	Exact match “Energy Way est une ESN spécialisée dans la modernisation et la transformation digitale des systèmes d’information critiques, avec une expertise reconnue en environnements…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	clicsoft.io	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “TRANSFORMATION DIGITALE / MODERNISATION DE PLATEFORME Nous vous aidons à améliorer l'expérience de vos clients et augmenter votre efficacité opérationnelle grâce au digital.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Mayasquad	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “Architecte de la transformation digitale et de l'innovation des entreprises.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Scorpulting	Exact match	Massy, FranceHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “Entreprise spécialisée dans le conseil en systèmes d'informations innovants intervenant dans des secteurs d’activité variés.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Codezys	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	12 contacts →
	Exact match “Codezys est une ESN spécialisée sur les technologies innovantes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Albalogic	Exact match	Aubagne, FranceHQ recorded Nov 6, 2026	11-50	11 contacts →
	Exact match “DEVELOPPEMENT Conception d’architectures logicielles modernes, robustes et stables selon l’environnement de déploiement de vos applications en tenant compte de vos habitudes…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “legacy app modernization services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 165 legacy app modernization services based in France

See the full list, filter by size, metro and specialty, and access 2,371 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Legacy app modernization services based in France at a glance

As of Nov 6, 2026

46.2%Verified-email coverage

31.1Average contacts per company

1-10Median size (employees)

35.8%Largest-city concentration · Paris

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

100

11-50

51-200

201-500

501-1,000

1,001-5,000

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 165 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with France whose business descriptions match “legacy app modernization services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,371 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Legacy app modernization services by metro

Legacy app modernization services in Paris59

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “legacy app modernization services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many legacy app modernization services are there based in France?

RevenueBase identified 165 company matches for legacy app modernization services associated with France as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Infotel tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most legacy app modernization services?

Paris leads with 59 company records, followed by Lyon (11) and Lille (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,371 professional contacts with verified work emails tracked across these 165 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 165 legacy app modernization services based in France. Start with a free account, no credit card.

Download this list →

Related lists

Legacy app modernization services by geography

Browse the directory

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.