Company lists · Data refreshed November 2026
Top 22 Legacy system integration firms based in France
RevenueBase identified 337 company matches for legacy system integration firms associated with France as of November 2026 and tracks 10,388 professional contacts across them, including 5,298 with verified work emails. Paris is the largest hub.
This list covers company matches for legacy system integration firms 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 22 largest legacy system integration firms based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 550 contacts → | ||||
Exact match “Filiale du Groupe SYNERGIE, DCS SYNERGIE GROUP capitalise sur son histoire pour accompagner chaque jour les enjeux IT de ses clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 434 contacts → | ||||
Exact match “Intégrateur de solutions innovantes & technologiques, reconnu sur le marché français et à l’international, nous venons en aide aux entreprises dans l’utilisation quotidienne de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 406 contacts → | ||||
Exact match “Metsys est un intégrateur de solutions de cybersécurité, d’infrastructure et de cloud.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 289 contacts → | ||||
Exact match “Fondée en 2017, Ouidou est une entreprise de services du numérique regroupant plus de 250 collaborateurs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 275 contacts → | ||||
Exact match “Nous sommes une ESN (entreprise de services numériques) spécialisée dans la conception, le développement et la maintenabilité de solutions informatiques, techniques et…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 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 | |||||
| 8 | 149 contacts → | ||||
Exact match “Chez RS2i, nous avons à cœur de réaliser votre transformation digitale, et ce, grâce à notre expertise acquise de longue date.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 146 contacts → | ||||
Exact match “Labsoft SSII accompagne des grands comptes régionaux et national ainsi que des PME PMI.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 136 contacts → | ||||
Exact match “Since 2005, HR Team, Digital Services Company, has been ensuring a digital strategy in line with the ambition of its customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 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 | |||||
| 12 | 115 contacts → | ||||
Exact match “Mismo, Forget Technology Mismo propose une offre complète en solutions de gestion, d'infrastructure et matériels informatiques.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 93 contacts → | ||||
Exact match “Toshiba Centre Grand Ouest met sa passion de l'innovation au service de ses clients en proposant des solutions à la pointe de la technologie, utiles à la vie des entreprises…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 92 contacts → | ||||
Exact match “En 2018, AS-PC, EVEA TECHNOLOGY et INETD CONSULTING deviennent NOVAHE < Novahé accompagne les ETIs et les Grands Comptes dans l’optimisation et l’urbanisation de leur Système…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 72 contacts → | ||||
Exact match “L'entreprise Axopen propose toute une gamme de produits et services informatique allant du conseil en système d'informations, développement de solutions sur mesure ou intégration…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 72 contacts → | ||||
Exact match “Attineos Infrastructures est une jeune ESN, spécialisée dans les Systèmes & Réseaux informatiques.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 68 contacts → | ||||
Exact match “FOKUS, où l’Humain et la Technologie se rencontrent.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 62 contacts → | ||||
Exact match “Partenaire de la transformation digitale des entreprises, Komposite est l’architecte de la modernisation des infrastructures IT, fournisseur de services Cloud hybrides, et expert…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 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 | |||||
| 20 | 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 | |||||
| 21 | 47 contacts → | ||||
Exact match “IT infrastructures expert, Naitways is a French tailored IT solutions company, with value-added services and high levels of contractual services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 47 contacts → | ||||
Exact match “Chez Elipce Solutions, nous concevons, déployons et maintenons des solutions logicielles adaptées à vos enjeux spécifiques, qu'il s'agisse d'outils internes dans tous les…” 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 integration firms”. 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 22 of 337 legacy system integration firms based in France
See the full list, filter by size, metro and specialty, and access 5,298 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Legacy system integration firms 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 337 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 integration firms” 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 5,298 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 integration firms 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 integration firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many legacy system integration firms are there based in France?
RevenueBase identified 337 company matches for legacy system integration firms 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?
DCS Easyware tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most legacy system integration firms?
Paris leads with 81 company records, followed by Lyon (15) and Levallois-Perret (6).
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 5,298 professional contacts with verified work emails tracked across these 337 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 337 legacy system integration firms based in France. Start with a free account, no credit card.
Download this list →Related lists
Legacy system integration firms by geography
- Legacy system integration firms based in Buenos Aires, Argentina
- Legacy system integration firms based in Melbourne, Australia
- Legacy system integration firms based in Sydney, Australia
- Legacy system integration firms based in Dhaka, Bangladesh
- Legacy system integration firms based in Rio De Janeiro, Brazil
- Legacy system integration firms based in Sao Paulo, Brazil
- Legacy system integration firms based in Calgary, Canada
- Legacy system integration firms based in Montreal, Canada
- Legacy system integration firms based in Toronto, Canada
- Legacy system integration firms based in Santiago, Chile
- Legacy system integration firms based in Cairo, Egypt
- Legacy system integration firms based in Paris, France
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
- All company lists
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- Lists A-Z
- New lists
- Legacy system integration firms based in Buenos Aires, Argentina
- Legacy system integration firms based in Melbourne, Australia
- Legacy system integration firms based in Sydney, Australia
- Legacy system integration firms based in Dhaka, Bangladesh
- Legacy system integration firms based in Rio De Janeiro, Brazil
- Legacy system integration firms based in Sao Paulo, Brazil
Company intelligence · public preview
Top 22 legacy system integration firms 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 337 matching company records for legacy system integration firms based in France, with 10,388 tracked contacts and 5,298 verified work emails.
This public preview shows 22 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 22 legacy system integration firms 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 |  DCS Easywaredcsit-group.comHQ: Lyon, FranceReported employees: 1,001-5,000 | Lyon, France | 1,001-5,000 | Exact match | 550 contacts → |
“Filiale du Groupe SYNERGIE, DCS SYNERGIE GROUP capitalise sur son histoire pour accompagner chaque jour les enjeux IT de ses clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Delaware Francedelaware.proHQ: Villeurbanne, FranceReported employees: 1,001-5,000 | Villeurbanne, France | 1,001-5,000 | Exact match | 434 contacts → |
“Intégrateur de solutions innovantes & technologiques, reconnu sur le marché français et à l’international, nous venons en aide aux entreprises dans l’utilisation quotidienne de…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  Metsysmetsys.frHQ: Boulogne-billancourt, FranceReported employees: 501-1,000 | Boulogne-billancourt, France | 501-1,000 | Exact match | 406 contacts → |
“Metsys est un intégrateur de solutions de cybersécurité, d’infrastructure et de cloud.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Ouidououidou.frHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 289 contacts → |
“Fondée en 2017, Ouidou est une entreprise de services du numérique regroupant plus de 250 collaborateurs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Kaizen Solutions KZSkaizen-solutions.netHQ: Montbonnot-saint-martin, FranceReported employees: 201-500 | Montbonnot-saint-martin, France | 201-500 | Exact match | 275 contacts → |
“Nous sommes une ESN (entreprise de services numériques) spécialisée dans la conception, le développement et la maintenabilité de solutions informatiques, techniques et…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  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. | |||||
| 8 |  Rs2irs2i.frHQ: Levallois-perret, FranceReported employees: 51-200 | Levallois-perret, France | 51-200 | Exact match | 149 contacts → |
“Chez RS2i, nous avons à cœur de réaliser votre transformation digitale, et ce, grâce à notre expertise acquise de longue date.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Labsoftlabsoft.frHQ: Labège, FranceReported employees: 51-200 | Labège, France | 51-200 | Exact match | 146 contacts → |
“Labsoft SSII accompagne des grands comptes régionaux et national ainsi que des PME PMI.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  HR Team Groupscalian.comHQ: Paris, FranceReported employees: 501-1,000 | Paris, France | 501-1,000 | Exact match | 136 contacts → |
“Since 2005, HR Team, Digital Services Company, has been ensuring a digital strategy in line with the ambition of its customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  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. | |||||
| 12 |  Mismo Informatiquemismo.frHQ: La Chapelle Sur Erdre, FranceReported employees: 51-200 | La Chapelle Sur Erdre, France | 51-200 | Exact match | 115 contacts → |
“Mismo, Forget Technology Mismo propose une offre complète en solutions de gestion, d'infrastructure et matériels informatiques.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Toshiba Centre Grand Ouesttoshibatec.frHQ: Sotteville-lès-rouen, FranceReported employees: 51-200 | Sotteville-lès-rouen, France | 51-200 | Exact match | 93 contacts → |
“Toshiba Centre Grand Ouest met sa passion de l'innovation au service de ses clients en proposant des solutions à la pointe de la technologie, utiles à la vie des entreprises…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Novahénovahe.frHQ: Saint Cloud Cedex, FranceReported employees: 51-200 | Saint Cloud Cedex, France | 51-200 | Exact match | 92 contacts → |
“En 2018, AS-PC, EVEA TECHNOLOGY et INETD CONSULTING deviennent NOVAHE < Novahé accompagne les ETIs et les Grands Comptes dans l’optimisation et l’urbanisation de leur Système…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Axopenaxopen.comHQ: Lyon, FranceReported employees: 51-200 | Lyon, France | 51-200 | Exact match | 72 contacts → |
“L'entreprise Axopen propose toute une gamme de produits et services informatique allant du conseil en système d'informations, développement de solutions sur mesure ou intégration…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Attineos Infrastructuresattineos-infrastructures.comHQ: Mont-saint-aignan, FranceReported employees: 51-200 | Mont-saint-aignan, France | 51-200 | Exact match | 72 contacts → |
“Attineos Infrastructures est une jeune ESN, spécialisée dans les Systèmes & Réseaux informatiques.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  FOKUSfokus-it.frHQ: Lyon, FranceReported employees: 51-200 | Lyon, France | 51-200 | Exact match | 68 contacts → |
“FOKUS, où l’Humain et la Technologie se rencontrent.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Kompositekomposite.frHQ: Levallois-perret, FranceReported employees: 11-50 | Levallois-perret, France | 11-50 | Exact match | 62 contacts → |
“Partenaire de la transformation digitale des entreprises, Komposite est l’architecte de la modernisation des infrastructures IT, fournisseur de services Cloud hybrides, et expert…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Agilia Technologyagilia-technology.comHQ: Entzheim, FranceReported employees: 11-50 | Entzheim, France | 11-50 | Exact match | 49 contacts → |
“Agilia Technology est une entreprise de services numériques spécialisée dans le conseil et l’expertise technologique.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Ootaryootary.comHQ: Soultz-haut-rhin, FranceReported employees: 11-50 | Soultz-haut-rhin, France | 11-50 | Exact match | 47 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Naitwaysnaitways.comHQ: Boulogne-billancourt, FranceReported employees: 51-200 | Boulogne-billancourt, France | 51-200 | Exact match | 47 contacts → |
“IT infrastructures expert, Naitways is a French tailored IT solutions company, with value-added services and high levels of contractual services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Valence, FranceReported employees: 11-50 | Valence, France | 11-50 | Exact match | 47 contacts → |
“Chez Elipce Solutions, nous concevons, déployons et maintenons des solutions logicielles adaptées à vos enjeux spécifiques, qu'il s'agisse d'outils internes dans tous les…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 22 of 337 company matches
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Legacy system integration firms: 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
336 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 337 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 integration firms by metro
Questions about this company list
What does Exact match mean for legacy system integration firms?
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 integration firms did RevenueBase find based in France?
The saved snapshot records 337 matching company records, 10,388 tracked contacts and 5,298 verified emails. The public preview displays 22 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 integration firms by geography
- Legacy system integration firms based in Buenos Aires, Argentina
- Legacy system integration firms based in Melbourne, Australia
- Legacy system integration firms based in Sydney, Australia
- Legacy system integration firms based in Dhaka, Bangladesh
- Legacy system integration firms based in Rio De Janeiro, Brazil
- Legacy system integration firms based in Sao Paulo, Brazil
- Legacy system integration firms based in Calgary, Canada
- Legacy system integration firms based in Montreal, Canada
- Legacy system integration firms based in Toronto, Canada
- Legacy system integration firms based in Santiago, Chile
- Legacy system integration firms based in Cairo, Egypt
- Legacy system integration firms based in Paris, France
Cite this list
RevenueBase Data Team. Top 22 legacy system integration firms based in France. Snapshot: November 6, 2026. https://revenuebase.ai/companies/legacy-system-integration-firms/france.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Legacy system integration firms based in Buenos Aires, Argentina
- Legacy system integration firms based in Melbourne, Australia
- Legacy system integration firms based in Sydney, Australia
- Legacy system integration firms based in Dhaka, Bangladesh
- Legacy system integration firms based in Rio De Janeiro, Brazil
- Legacy system integration firms based in Sao Paulo, Brazil
Company intelligence · public preview
Top 22 legacy system integration firms based in France
RevenueBase records 337 matching company records for legacy system integration firms based in France, with 10,388 tracked contacts and 5,298 verified work emails.
This public preview shows 22 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 22 legacy system integration firms 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 | DCS Easywaredcsit-group.com HQ: Lyon, FranceReported employees: 1,001-5,000 | Lyon, France | 1,001-5,000 | Exact match | 550 contacts → |
“Filiale du Groupe SYNERGIE, DCS SYNERGIE GROUP capitalise sur son histoire pour accompagner chaque jour les enjeux IT de ses clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Delaware Francedelaware.pro HQ: Villeurbanne, FranceReported employees: 1,001-5,000 | Villeurbanne, France | 1,001-5,000 | Exact match | 434 contacts → |
“Intégrateur de solutions innovantes & technologiques, reconnu sur le marché français et à l’international, nous venons en aide aux entreprises dans l’utilisation quotidienne de…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | Metsysmetsys.fr HQ: Boulogne-billancourt, FranceReported employees: 501-1,000 | Boulogne-billancourt, France | 501-1,000 | Exact match | 406 contacts → |
“Metsys est un intégrateur de solutions de cybersécurité, d’infrastructure et de cloud.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Ouidououidou.fr HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 289 contacts → |
“Fondée en 2017, Ouidou est une entreprise de services du numérique regroupant plus de 250 collaborateurs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Kaizen Solutions KZSkaizen-solutions.net HQ: Montbonnot-saint-martin, FranceReported employees: 201-500 | Montbonnot-saint-martin, France | 201-500 | Exact match | 275 contacts → |
“Nous sommes une ESN (entreprise de services numériques) spécialisée dans la conception, le développement et la maintenabilité de solutions informatiques, techniques et…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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. | |||||
| 8 | Rs2irs2i.fr HQ: Levallois-perret, FranceReported employees: 51-200 | Levallois-perret, France | 51-200 | Exact match | 149 contacts → |
“Chez RS2i, nous avons à cœur de réaliser votre transformation digitale, et ce, grâce à notre expertise acquise de longue date.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Labsoftlabsoft.fr HQ: Labège, FranceReported employees: 51-200 | Labège, France | 51-200 | Exact match | 146 contacts → |
“Labsoft SSII accompagne des grands comptes régionaux et national ainsi que des PME PMI.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HR Team Groupscalian.com HQ: Paris, FranceReported employees: 501-1,000 | Paris, France | 501-1,000 | Exact match | 136 contacts → |
“Since 2005, HR Team, Digital Services Company, has been ensuring a digital strategy in line with the ambition of its customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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. | |||||
| 12 | Mismo Informatiquemismo.fr HQ: La Chapelle Sur Erdre, FranceReported employees: 51-200 | La Chapelle Sur Erdre, France | 51-200 | Exact match | 115 contacts → |
“Mismo, Forget Technology Mismo propose une offre complète en solutions de gestion, d'infrastructure et matériels informatiques.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Toshiba Centre Grand Ouesttoshibatec.fr HQ: Sotteville-lès-rouen, FranceReported employees: 51-200 | Sotteville-lès-rouen, France | 51-200 | Exact match | 93 contacts → |
“Toshiba Centre Grand Ouest met sa passion de l'innovation au service de ses clients en proposant des solutions à la pointe de la technologie, utiles à la vie des entreprises…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Novahénovahe.fr HQ: Saint Cloud Cedex, FranceReported employees: 51-200 | Saint Cloud Cedex, France | 51-200 | Exact match | 92 contacts → |
“En 2018, AS-PC, EVEA TECHNOLOGY et INETD CONSULTING deviennent NOVAHE < Novahé accompagne les ETIs et les Grands Comptes dans l’optimisation et l’urbanisation de leur Système…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Axopenaxopen.com HQ: Lyon, FranceReported employees: 51-200 | Lyon, France | 51-200 | Exact match | 72 contacts → |
“L'entreprise Axopen propose toute une gamme de produits et services informatique allant du conseil en système d'informations, développement de solutions sur mesure ou intégration…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Attineos Infrastructuresattineos-infrastructures.com HQ: Mont-saint-aignan, FranceReported employees: 51-200 | Mont-saint-aignan, France | 51-200 | Exact match | 72 contacts → |
“Attineos Infrastructures est une jeune ESN, spécialisée dans les Systèmes & Réseaux informatiques.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | FOKUSfokus-it.fr HQ: Lyon, FranceReported employees: 51-200 | Lyon, France | 51-200 | Exact match | 68 contacts → |
“FOKUS, où l’Humain et la Technologie se rencontrent.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Kompositekomposite.fr HQ: Levallois-perret, FranceReported employees: 11-50 | Levallois-perret, France | 11-50 | Exact match | 62 contacts → |
“Partenaire de la transformation digitale des entreprises, Komposite est l’architecte de la modernisation des infrastructures IT, fournisseur de services Cloud hybrides, et expert…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Agilia Technologyagilia-technology.com HQ: Entzheim, FranceReported employees: 11-50 | Entzheim, France | 11-50 | Exact match | 49 contacts → |
“Agilia Technology est une entreprise de services numériques spécialisée dans le conseil et l’expertise technologique.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Ootaryootary.com HQ: Soultz-haut-rhin, FranceReported employees: 11-50 | Soultz-haut-rhin, France | 11-50 | Exact match | 47 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Naitwaysnaitways.com HQ: Boulogne-billancourt, FranceReported employees: 51-200 | Boulogne-billancourt, France | 51-200 | Exact match | 47 contacts → |
“IT infrastructures expert, Naitways is a French tailored IT solutions company, with value-added services and high levels of contractual services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Valence, FranceReported employees: 11-50 | Valence, France | 11-50 | Exact match | 47 contacts → |
“Chez Elipce Solutions, nous concevons, déployons et maintenons des solutions logicielles adaptées à vos enjeux spécifiques, qu'il s'agisse d'outils internes dans tous les…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 22 of 337 company matches
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Legacy system integration firms: 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
336 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 337 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 integration firms by metro
Questions about this company list
What does Exact match mean for legacy system integration firms?
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 integration firms did RevenueBase find based in France?
The saved snapshot records 337 matching company records, 10,388 tracked contacts and 5,298 verified emails. The public preview displays 22 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 integration firms by geography
- Legacy system integration firms based in Buenos Aires, Argentina
- Legacy system integration firms based in Melbourne, Australia
- Legacy system integration firms based in Sydney, Australia
- Legacy system integration firms based in Dhaka, Bangladesh
- Legacy system integration firms based in Rio De Janeiro, Brazil
- Legacy system integration firms based in Sao Paulo, Brazil
- Legacy system integration firms based in Calgary, Canada
- Legacy system integration firms based in Montreal, Canada
- Legacy system integration firms based in Toronto, Canada
- Legacy system integration firms based in Santiago, Chile
- Legacy system integration firms based in Cairo, Egypt
- Legacy system integration firms based in Paris, France
Cite this list
RevenueBase Data Team. Top 22 legacy system integration firms based in France. Snapshot: November 6, 2026. https://revenuebase.ai/companies/legacy-system-integration-firms/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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- Legacy system integration firms based in Buenos Aires, Argentina
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- Legacy system integration firms based in Dhaka, Bangladesh
- Legacy system integration firms based in Rio De Janeiro, Brazil
- Legacy system integration firms based in Sao Paulo, Brazil