Company lists · Data refreshed November 2026

Top 25 Legacy app migration services based in France

Name: Legacy app migration 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 66 companies tracked

RevenueBase identified 66 company matches for legacy app migration services associated with France as of November 2026 and tracks 1,971 professional contacts across them, including 1,016 with verified work emails. Paris is the largest hub.

This list covers company matches for legacy app migration 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

66Companies

1,971Contacts tracked

1,016Verified emails

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

The 25 largest legacy app migration services based in France

Ranked by team size

Top 25 of 66 company matches for legacy app migration 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	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
2	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
3	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
4	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
5	Moov'incloud	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	26 contacts →
	Exact match “Migrating applications and data to public-cloud platforms is a strategic challenge of digital transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	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
7	BIG Apps	Exact match	Rosny-sous-bois, FranceHQ recorded Nov 6, 2026	11-50	21 contacts →
	Exact match “Nous sommes une entreprise spécialisée dans la gestion des données, composée d'une équipe de plus de 30 experts.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Devoteam	Exact match	Paris, FranceHQ recorded Nov 6, 2026	201-500	19 contacts →
	Exact match “Rejoignez la #TeamRevolve!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	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
10	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
11	Square System	Exact match	Boulogne-billancourt, FranceHQ recorded Nov 6, 2026	11-50	12 contacts →
	Exact match “Square a pour ambition d’accompagner les entreprises dans la modernisation de leur système d’information et leur mouvement vers l’hybridation de leur infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	A3is	Exact match	Charenton Le Pont, FranceHQ recorded Nov 6, 2026	201-500	10 contacts →
	Exact match “A3IS, une marque du groupe BLUE SOFT, est une ESN spécialisée dans la transformation digitale et le développement d’applications Mobiles et web marchand.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Craftmania	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	9 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Daka Team Data In Action Knowledge For ALL	Exact match	Lille, FranceHQ recorded Nov 6, 2026	11-50	7 contacts →
	Exact match “DAKA•TEAM est une ESN hydride, Spécialiste de la et de son écosystème!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	LTI Services	Exact match	Bièvres, FranceHQ recorded Nov 6, 2026	201-500	6 contacts →
	Exact match “LTI SERVICES est une société d'externalisation fiable et réputée.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Kaliva	Exact match	Guyancourt, FranceHQ recorded Nov 6, 2026	11-50	6 contacts →
	Exact match “KALIVA est une société de conseil et de services qui accompagne les entreprises dans leur transformation numérique.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Cockpit IO	Exact match	Paris, FranceHQ recorded Nov 6, 2026	1-10	5 contacts →
	Exact match “Cockpit io est une entreprise avec une équipe experte passionnée, guidée par la culture DevOps, qui accompagne les entreprises dans leur transformation numérique et leur adoption…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Leminnov	Exact match	Évry-courcouronnes, FranceHQ recorded Nov 6, 2026	1-10	5 contacts →
	Exact match “Leminnov is an European IT Consulting company for modern IT infrastructure design and transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Monades	Exact match	Tournan En Brie, FranceHQ recorded Nov 6, 2026	1-10	4 contacts →
	Exact match “Chez Monades, nous aidons les entreprises à moderniser leurs applications, optimiser leurs performances numériques et accélérer leur transformation digitale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Slamflow	Exact match	Valence, FranceHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Slamflow est une société de conseil en informatique qui édite également sa solution nocode de conception d'applications de gestion pour entreprises.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Barycenter Europe	Exact match	Paris, FranceHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Barycenter Europe helps teams modernize critical software systems without freezing delivery.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Teleassist	Exact match	Lieusaint, FranceHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Qui sommes-nous?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Domwee	Exact match	Vaulx En Velin, FranceHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “DOMWEE est une entreprise de service informatique spécialisée dans le cloud computing basée à Lyon.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Nuage UP	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	1 contacts →
	Exact match “Notre entreprise est spécialisée dans la modernisation des infrastructures informatiques, offrant des services de conteneurisation d'applications, de migration vers le cloud et…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Sparo Technologies	Exact match	Lille, FranceHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “Sparo Technologies helps you solve your cloud challenges, whether you are a startup or a large company, our team of experts DevOps, SysOps, Platform Engineers, Architects will…” 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 migration 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 66 legacy app migration services based in France

See the full list, filter by size, metro and specialty, and access 1,016 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Legacy app migration services based in France at a glance

As of Nov 6, 2026

51.5%Verified-email coverage

29.9Average contacts per company

1-10Median size (employees)

45.5%Largest-city concentration · Paris

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 66 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 migration 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 1,016 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 migration services by metro

Legacy app migration services in Paris30

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 migration services”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 66 company matches for legacy app migration 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?

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

Which city has the most legacy app migration services?

Paris leads with 30 company records, followed by Lyon (4) and Boulogne-Billancourt (2).

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 1,016 professional contacts with verified work emails tracked across these 66 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 66 legacy app migration services based in France. Start with a free account, no credit card.

Download this list →

Related lists

Legacy app migration 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.