Company lists · Data refreshed November 2026
Top 25 Legacy system migration services based in France
RevenueBase identified 645 company matches for legacy system migration services associated with France as of November 2026 and tracks 20,026 professional contacts across them, including 9,421 with verified work emails. Paris is the largest hub.
This list covers company matches for legacy system 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.
The 25 largest legacy system migration services based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,174 contacts → | ||||
Exact match “VISEO is a global digital and business consulting company that assists its clients with their transformation journeys using advanced technology and industry expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 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 | |||||
| 3 | 1,331 contacts → | ||||
Exact match “Créée en septembre 2001, Niji est une société de conseil, de design et de mise en œuvre technologique, entièrement dédiée à la transformation numérique des entreprises et des…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 738 contacts → | ||||
Exact match “An international consulting group specialized in corporate transformation through Data, MICROPOLE partners its clients through a global approach: ‘Data Driven‘ Strategy, Cloud…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 525 contacts → | ||||
Exact match “USING OUR COLLECTIVE ENERGY FOR POSITIVE TECHNOLOGY Ippon is a consulting and expertise firm, who is convinced that technology is a source of progress for society.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 443 contacts → | ||||
Exact match “Zenika is an IT consulting firm with 550 employees that helps companies with their digital transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 420 contacts → | ||||
Exact match “KPC se positionne comme un acteur global capable d’intervenir aussi bien sur des phases amonts (AMOA) que sur des phases d’intégration de logiciels (AMOE): Conseil et Services…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 354 contacts → | ||||
Exact match “For over 20 years, ITS Group has supported companies in their digital transformation projects thanks to the strength of its specialized areas of expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 338 contacts → | ||||
Exact match “Together, aiming higher and going further to unlock your potential.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 322 contacts → | ||||
Exact match “Inside est une société de conseil et de services numériques qui simplifie et accélère la transformation des entreprises, de la stratégie à la mise en œuvre, avec un objectif clair…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 310 contacts → | ||||
Exact match “Devoteam is a leading provider of Premium Microsoft Cloud Consulting and Managed services in EMEA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 283 contacts → | ||||
Exact match “Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 250 contacts → | ||||
Exact match “Launched in 2003, DATASOLUTION’s mission is to assist its customers into their digital transformation, whatever BtoB or BtoC.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 198 contacts → | ||||
Exact match “Chez SYD, nous accompagnons depuis plus de 25 ans les entreprises : TPE, PME et grands comptes, tous secteurs confondus dans leur accélération digitale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 193 contacts → | ||||
Exact match “Oxyl Groupe | L’humain au cœur de la technologie Chez Oxyl Groupe, nous accompagnons les entreprises dans leurs transformations digitales avec une conviction simple : la…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 186 contacts → | ||||
Exact match “Créée en 1997, Acelys Services Numériques est une entreprise de services numériques (ESN) basée en Occitanie.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 159 contacts → | ||||
Exact match “Partenaire reconnu de la transformation digitale, Calliope Business Solutions est spécialisé dans l’édition et l’intégration de solutions ERP, CRM et collaboratives sur les…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 158 contacts → | ||||
Exact match “Dans un monde où tout s’accélère, la transformation numérique n’est plus une option : c’est un levier de compétitivité.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 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 | |||||
| 20 | 146 contacts → | ||||
Exact match “Entreprise de Services du Numérique, Attineos revendique sa différence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 145 contacts → | ||||
Exact match “We build a resilient digital experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 142 contacts → | ||||
Exact match “Depuis plus de 30 ans, Discovery a accompagné plus de entreprises dans 26 pays à travers le monde dans leur digitalisation en développant et en intégrant des solutions et des…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 135 contacts → | ||||
Exact match “LE DIGITAL PAR EXPERIENCE] Ntico, entreprise de services numérique est une communauté de talents, présente à Lille, Massy, Orléans et Montpellier, partageant des valeurs…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 131 contacts → | ||||
Exact match “Saegus: digital use at heart of the transformation of business models The creation of Saegus is a response to a persistent issue for clients: companies that are at a loss when…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 115 contacts → | ||||
Exact match “Experteam est une société de conseil et d’expertise IT qui accompagne et accélère la transformation digitale des entreprises et des organisations.” 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 system 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 645 legacy system migration services based in France
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Legacy system migration services based in France at a glance
As of Nov 6, 2026Companies by employee count
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 645 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 system 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 9,421 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 system migration services by metro
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 system migration services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many legacy system migration services are there based in France?
RevenueBase identified 645 company matches for legacy system 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?
VISEO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most legacy system migration services?
Paris leads with 212 company records, followed by Lyon (27) and Lille (14).
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 9,421 professional contacts with verified work emails tracked across these 645 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 645 legacy system migration services based in France. Start with a free account, no credit card.
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Legacy system migration services by geography
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- Legacy system migration services based in Sydney, Australia
- Legacy system migration services based in Rio De Janeiro, Brazil
- Legacy system migration services based in Sao Paulo, Brazil
- Legacy system migration services based in Sofia, Bulgaria
- Legacy system migration services based in Calgary, Canada
- Legacy system migration services based in Mississauga, Canada
- Legacy system migration services based in Montreal, Canada
- Legacy system migration services based in Toronto, Canada
- Legacy system migration services based in Vancouver, Canada
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.
More company lists
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- New lists
- Legacy system migration services based in Buenos Aires, Argentina
- Legacy system migration services based in Brisbane, Australia
- Legacy system migration services based in Melbourne, Australia
- Legacy system migration services based in Sydney, Australia
- Legacy system migration services based in Rio De Janeiro, Brazil
- Legacy system migration services based in Sao Paulo, Brazil
Company intelligence · public preview
Top 25 legacy system migration services based in France
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 645 matching company records for legacy system migration services based in France, with 20,026 tracked contacts and 9,421 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 legacy system migration services based in France
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  VISEOviseo.comHQ: Boulogne-billancourt, FranceReported employees: 1,001-5,000 | Boulogne-billancourt, France | 1,001-5,000 | Exact match | 2,174 contacts → |
“VISEO is a global digital and business consulting company that assists its clients with their transformation journeys using advanced technology and industry expertise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Infotelinfotel.comHQ: Neuilly-sur-seine, FranceReported employees: 1,001-5,000 | Neuilly-sur-seine, France | 1,001-5,000 | Exact match | 1,842 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  NIJIniji.frHQ: Issy-les-moulineaux, FranceReported employees: 1,001-5,000 | Issy-les-moulineaux, France | 1,001-5,000 | Exact match | 1,331 contacts → |
“Créée en septembre 2001, Niji est une société de conseil, de design et de mise en œuvre technologique, entièrement dédiée à la transformation numérique des entreprises et des…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Micropolemicropole.comHQ: Levallois-perret, FranceReported employees: 1,001-5,000 | Levallois-perret, France | 1,001-5,000 | Exact match | 738 contacts → |
“An international consulting group specialized in corporate transformation through Data, MICROPOLE partners its clients through a global approach: ‘Data Driven‘ Strategy, Cloud…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Ippon Technologiesippon.techHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 525 contacts → |
“USING OUR COLLECTIVE ENERGY FOR POSITIVE TECHNOLOGY Ippon is a consulting and expertise firm, who is convinced that technology is a source of progress for society.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Zenikazenika.comHQ: Paris, FranceReported employees: 501-1,000 | Paris, France | 501-1,000 | Exact match | 443 contacts → |
“Zenika is an IT consulting firm with 550 employees that helps companies with their digital transformation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  KEY Performance Consulting KPCkpconsulting.frHQ: Aix-en-provence, FranceReported employees: 201-500 | Aix-en-provence, France | 201-500 | Exact match | 420 contacts → |
“KPC se positionne comme un acteur global capable d’intervenir aussi bien sur des phases amonts (AMOA) que sur des phases d’intégration de logiciels (AMOE): Conseil et Services…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  ITS Group S.Aitsgroup.comHQ: Boulogne-billancourt, FranceReported employees: 1,001-5,000 | Boulogne-billancourt, France | 1,001-5,000 | Exact match | 354 contacts → |
“For over 20 years, ITS Group has supported companies in their digital transformation projects thanks to the strength of its specialized areas of expertise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  LÙKLAluklagroup.comHQ: Paris, FranceReported employees: 501-1,000 | Paris, France | 501-1,000 | Exact match | 338 contacts → |
“Together, aiming higher and going further to unlock your potential.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Insideinsidegroup.frHQ: Toulouse, FranceReported employees: 201-500 | Toulouse, France | 201-500 | Exact match | 322 contacts → |
“Inside est une société de conseil et de services numériques qui simplifie et accélère la transformation des entreprises, de la stratégie à la mise en œuvre, avec un objectif clair…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Devoteam Microsoft Partnerdevoteam.comHQ: Levallois Perret, FranceReported employees: 1,001-5,000 | Levallois Perret, France | 1,001-5,000 | Exact match | 310 contacts → |
“Devoteam is a leading provider of Premium Microsoft Cloud Consulting and Managed services in EMEA.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Cyllenegroupe-cyllene.comHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 283 contacts → |
“Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Datasolutiondatasolution.frHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 250 contacts → |
“Launched in 2003, DATASOLUTION’s mission is to assist its customers into their digital transformation, whatever BtoB or BtoC.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Groupe SYDsyd.frHQ: Saint Herblain, FranceReported employees: 201-500 | Saint Herblain, France | 201-500 | Exact match | 198 contacts → |
“Chez SYD, nous accompagnons depuis plus de 25 ans les entreprises : TPE, PME et grands comptes, tous secteurs confondus dans leur accélération digitale.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  OXYLoxyl.frHQ: Arcueil, FranceReported employees: 51-200 | Arcueil, France | 51-200 | Exact match | 193 contacts → |
“Oxyl Groupe | L’humain au cœur de la technologie Chez Oxyl Groupe, nous accompagnons les entreprises dans leurs transformations digitales avec une conviction simple : la…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Acelys Services Numériquesacelys.frHQ: Montpellier, FranceReported employees: 51-200 | Montpellier, France | 51-200 | Exact match | 186 contacts → |
“Créée en 1997, Acelys Services Numériques est une entreprise de services numériques (ESN) basée en Occitanie.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Calliope Business Solutions By TVH Consultinggroupe-calliope.comHQ: Saint-denis, FranceReported employees: 201-500 | Saint-denis, France | 201-500 | Exact match | 159 contacts → |
“Partenaire reconnu de la transformation digitale, Calliope Business Solutions est spécialisé dans l’édition et l’intégration de solutions ERP, CRM et collaboratives sur les…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  RBIrbi-informatique.frHQ: Rennes, FranceReported employees: Not recorded | Rennes, France | Not recorded | Exact match | 158 contacts → |
“Dans un monde où tout s’accélère, la transformation numérique n’est plus une option : c’est un levier de compétitivité.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Wemanity Reply Pariswemanityreply.comHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 155 contacts → |
“Wemanity Reply is a consulting and delivery firm specialized in technological, organizational, and cultural transformation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Attineos Applicationsattineos.comHQ: Rouen, FranceReported employees: 201-500 | Rouen, France | 201-500 | Exact match | 146 contacts → |
“Entreprise de Services du Numérique, Attineos revendique sa différence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Adservioadservio.frHQ: Puteaux, FranceReported employees: 201-500 | Puteaux, France | 201-500 | Exact match | 145 contacts → |
“We build a resilient digital experience.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Discovery Intechdiscoveryintech.comHQ: Puteaux, FranceReported employees: 201-500 | Puteaux, France | 201-500 | Exact match | 142 contacts → |
“Depuis plus de 30 ans, Discovery a accompagné plus de entreprises dans 26 pays à travers le monde dans leur digitalisation en développant et en intégrant des solutions et des…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  NTICOntico.comHQ: Sainghin-en-mélantois, FranceReported employees: 51-200 | Sainghin-en-mélantois, France | 51-200 | Exact match | 135 contacts → |
“LE DIGITAL PAR EXPERIENCE] Ntico, entreprise de services numérique est une communauté de talents, présente à Lille, Massy, Orléans et Montpellier, partageant des valeurs…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Saegussaegus.comHQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 131 contacts → |
“Saegus: digital use at heart of the transformation of business models The creation of Saegus is a response to a persistent issue for clients: companies that are at a loss when…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Experteamexperteam.frHQ: Nanterre, FranceReported employees: 201-500 | Nanterre, France | 201-500 | Exact match | 115 contacts → |
“Experteam est une société de conseil et d’expertise IT qui accompagne et accélère la transformation digitale des entreprises et des organisations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 645 company matches
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Legacy system migration services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
644 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 645 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Legacy system migration services by metro
Questions about this company list
What does Exact match mean for legacy system migration services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many legacy system migration services did RevenueBase find based in France?
The saved snapshot records 645 matching company records, 20,026 tracked contacts and 9,421 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Legacy system migration services by geography
- Legacy system migration services based in Buenos Aires, Argentina
- Legacy system migration services based in Brisbane, Australia
- Legacy system migration services based in Melbourne, Australia
- Legacy system migration services based in Sydney, Australia
- Legacy system migration services based in Rio De Janeiro, Brazil
- Legacy system migration services based in Sao Paulo, Brazil
- Legacy system migration services based in Sofia, Bulgaria
- Legacy system migration services based in Calgary, Canada
- Legacy system migration services based in Mississauga, Canada
- Legacy system migration services based in Montreal, Canada
- Legacy system migration services based in Toronto, Canada
- Legacy system migration services based in Vancouver, Canada
Cite this list
RevenueBase Data Team. Top 25 legacy system migration services based in France. Snapshot: November 6, 2026. https://revenuebase.ai/companies/legacy-system-migration-services/france.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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Company intelligence · public preview
Top 25 legacy system migration services based in France
RevenueBase records 645 matching company records for legacy system migration services based in France, with 20,026 tracked contacts and 9,421 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 legacy system migration services based in France
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | VISEOviseo.com HQ: Boulogne-billancourt, FranceReported employees: 1,001-5,000 | Boulogne-billancourt, France | 1,001-5,000 | Exact match | 2,174 contacts → |
“VISEO is a global digital and business consulting company that assists its clients with their transformation journeys using advanced technology and industry expertise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Infotelinfotel.com HQ: Neuilly-sur-seine, FranceReported employees: 1,001-5,000 | Neuilly-sur-seine, France | 1,001-5,000 | Exact match | 1,842 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | NIJIniji.fr HQ: Issy-les-moulineaux, FranceReported employees: 1,001-5,000 | Issy-les-moulineaux, France | 1,001-5,000 | Exact match | 1,331 contacts → |
“Créée en septembre 2001, Niji est une société de conseil, de design et de mise en œuvre technologique, entièrement dédiée à la transformation numérique des entreprises et des…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Micropolemicropole.com HQ: Levallois-perret, FranceReported employees: 1,001-5,000 | Levallois-perret, France | 1,001-5,000 | Exact match | 738 contacts → |
“An international consulting group specialized in corporate transformation through Data, MICROPOLE partners its clients through a global approach: ‘Data Driven‘ Strategy, Cloud…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Ippon Technologiesippon.tech HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 525 contacts → |
“USING OUR COLLECTIVE ENERGY FOR POSITIVE TECHNOLOGY Ippon is a consulting and expertise firm, who is convinced that technology is a source of progress for society.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Zenikazenika.com HQ: Paris, FranceReported employees: 501-1,000 | Paris, France | 501-1,000 | Exact match | 443 contacts → |
“Zenika is an IT consulting firm with 550 employees that helps companies with their digital transformation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | KEY Performance Consulting KPCkpconsulting.fr HQ: Aix-en-provence, FranceReported employees: 201-500 | Aix-en-provence, France | 201-500 | Exact match | 420 contacts → |
“KPC se positionne comme un acteur global capable d’intervenir aussi bien sur des phases amonts (AMOA) que sur des phases d’intégration de logiciels (AMOE): Conseil et Services…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | ITS Group S.Aitsgroup.com HQ: Boulogne-billancourt, FranceReported employees: 1,001-5,000 | Boulogne-billancourt, France | 1,001-5,000 | Exact match | 354 contacts → |
“For over 20 years, ITS Group has supported companies in their digital transformation projects thanks to the strength of its specialized areas of expertise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | LÙKLAluklagroup.com HQ: Paris, FranceReported employees: 501-1,000 | Paris, France | 501-1,000 | Exact match | 338 contacts → |
“Together, aiming higher and going further to unlock your potential.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Insideinsidegroup.fr HQ: Toulouse, FranceReported employees: 201-500 | Toulouse, France | 201-500 | Exact match | 322 contacts → |
“Inside est une société de conseil et de services numériques qui simplifie et accélère la transformation des entreprises, de la stratégie à la mise en œuvre, avec un objectif clair…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Devoteam Microsoft Partnerdevoteam.com HQ: Levallois Perret, FranceReported employees: 1,001-5,000 | Levallois Perret, France | 1,001-5,000 | Exact match | 310 contacts → |
“Devoteam is a leading provider of Premium Microsoft Cloud Consulting and Managed services in EMEA.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cyllenegroupe-cyllene.com HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 283 contacts → |
“Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Datasolutiondatasolution.fr HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 250 contacts → |
“Launched in 2003, DATASOLUTION’s mission is to assist its customers into their digital transformation, whatever BtoB or BtoC.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Groupe SYDsyd.fr HQ: Saint Herblain, FranceReported employees: 201-500 | Saint Herblain, France | 201-500 | Exact match | 198 contacts → |
“Chez SYD, nous accompagnons depuis plus de 25 ans les entreprises : TPE, PME et grands comptes, tous secteurs confondus dans leur accélération digitale.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | OXYLoxyl.fr HQ: Arcueil, FranceReported employees: 51-200 | Arcueil, France | 51-200 | Exact match | 193 contacts → |
“Oxyl Groupe | L’humain au cœur de la technologie Chez Oxyl Groupe, nous accompagnons les entreprises dans leurs transformations digitales avec une conviction simple : la…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Acelys Services Numériquesacelys.fr HQ: Montpellier, FranceReported employees: 51-200 | Montpellier, France | 51-200 | Exact match | 186 contacts → |
“Créée en 1997, Acelys Services Numériques est une entreprise de services numériques (ESN) basée en Occitanie.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Calliope Business Solutions By TVH Consultinggroupe-calliope.com HQ: Saint-denis, FranceReported employees: 201-500 | Saint-denis, France | 201-500 | Exact match | 159 contacts → |
“Partenaire reconnu de la transformation digitale, Calliope Business Solutions est spécialisé dans l’édition et l’intégration de solutions ERP, CRM et collaboratives sur les…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | RBIrbi-informatique.fr HQ: Rennes, FranceReported employees: Not recorded | Rennes, France | Not recorded | Exact match | 158 contacts → |
“Dans un monde où tout s’accélère, la transformation numérique n’est plus une option : c’est un levier de compétitivité.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Wemanity Reply Pariswemanityreply.com HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 155 contacts → |
“Wemanity Reply is a consulting and delivery firm specialized in technological, organizational, and cultural transformation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Attineos Applicationsattineos.com HQ: Rouen, FranceReported employees: 201-500 | Rouen, France | 201-500 | Exact match | 146 contacts → |
“Entreprise de Services du Numérique, Attineos revendique sa différence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Adservioadservio.fr HQ: Puteaux, FranceReported employees: 201-500 | Puteaux, France | 201-500 | Exact match | 145 contacts → |
“We build a resilient digital experience.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Discovery Intechdiscoveryintech.com HQ: Puteaux, FranceReported employees: 201-500 | Puteaux, France | 201-500 | Exact match | 142 contacts → |
“Depuis plus de 30 ans, Discovery a accompagné plus de entreprises dans 26 pays à travers le monde dans leur digitalisation en développant et en intégrant des solutions et des…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | NTICOntico.com HQ: Sainghin-en-mélantois, FranceReported employees: 51-200 | Sainghin-en-mélantois, France | 51-200 | Exact match | 135 contacts → |
“LE DIGITAL PAR EXPERIENCE] Ntico, entreprise de services numérique est une communauté de talents, présente à Lille, Massy, Orléans et Montpellier, partageant des valeurs…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Saegussaegus.com HQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 131 contacts → |
“Saegus: digital use at heart of the transformation of business models The creation of Saegus is a response to a persistent issue for clients: companies that are at a loss when…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Experteamexperteam.fr HQ: Nanterre, FranceReported employees: 201-500 | Nanterre, France | 201-500 | Exact match | 115 contacts → |
“Experteam est une société de conseil et d’expertise IT qui accompagne et accélère la transformation digitale des entreprises et des organisations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 645 company matches
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Legacy system migration services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
644 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 645 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Legacy system migration services by metro
Questions about this company list
What does Exact match mean for legacy system migration services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many legacy system migration services did RevenueBase find based in France?
The saved snapshot records 645 matching company records, 20,026 tracked contacts and 9,421 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Legacy system migration services by geography
- Legacy system migration services based in Buenos Aires, Argentina
- Legacy system migration services based in Brisbane, Australia
- Legacy system migration services based in Melbourne, Australia
- Legacy system migration services based in Sydney, Australia
- Legacy system migration services based in Rio De Janeiro, Brazil
- Legacy system migration services based in Sao Paulo, Brazil
- Legacy system migration services based in Sofia, Bulgaria
- Legacy system migration services based in Calgary, Canada
- Legacy system migration services based in Mississauga, Canada
- Legacy system migration services based in Montreal, Canada
- Legacy system migration services based in Toronto, Canada
- Legacy system migration services based in Vancouver, Canada
Cite this list
RevenueBase Data Team. Top 25 legacy system migration services based in France. Snapshot: November 6, 2026. https://revenuebase.ai/companies/legacy-system-migration-services/france.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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