Company lists · Data refreshed September 2026

Top 25 Legacy system modernization consultancies based in Paris, France

Name: Legacy system modernization consultancies based in Paris, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 117 companies tracked

RevenueBase identified 117 company matches for legacy system modernization consultancies associated with Paris, France as of September 2026 and tracks 747 professional contacts across them, including 245 with verified work emails. Across France, Paris is the largest hub for this category.

This list covers company matches for legacy system modernization consultancies associated with Paris, 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 September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

117Companies

747Contacts tracked

245Verified emails

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The 25 largest legacy system modernization consultancies based in Paris, France

Ranked by team size

Top 25 of 117 company matches for legacy system modernization consultancies based in Paris, France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Tlti Ingénierie Numérique	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	69 contacts →
	Exact match “CONSEIL : Un savoir-faire reconnu et structuré autour d'axes métiers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Kern Consulting	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	59 contacts →
	Exact match “Kern Consulting est un cabinet d'experts spécialistes de la transformation de l'entreprise, convaincus que le Système d'Information en est un levier incontournable.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Diggers	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	58 contacts →
	Exact match “Diggers est un cabinet de conseil facilitateur de projets et de transformations, spécialisé dans les métiers de l'IT (développement, data & IA, devops, cloud) et une agence de…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Lenstra	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	53 contacts →
	Exact match “Lenstra is a consultancy that specialises in Tech.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Kp2i	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	33 contacts →
	Exact match “KP2i est un cabinet de Conseil & de Services qui vous accompagne pour transformer votre système d’information en un véritable partenaire business.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	We ARE Beebay	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	27 contacts →
	Exact match “We Are Beebay is an IT consulting agency.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Trend-It	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	27 contacts →
	Exact match “TREND-IT est un cabinet de conseil IT, d’expertise technique et de transformation digitale.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Aptineo	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	27 contacts →
	Exact match “APTINEO, cabinet de conseil en SI, accompagne avec succès de grands groupes depuis 2008.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Andex International	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	26 contacts →
	Exact match “Depuis sa création en 2007, ANDEX vous accompagne dans votre quête d’alignement stratégique du système d’information.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Euraxiel	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	18 contacts →
	Exact match “Notre ADN : la qualité des développements et l’industrialisation des processus.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	EPI	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	17 contacts →
	Exact match “Bénéficiez du savoir-faire de nos consultants IT pour l’amélioration des performances de votre entreprise, et assurer une meilleure expérience utilisateur pour vos clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Energy WAY	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	15 contacts →
	Exact match “Energy Way est une ESN spécialisée dans la modernisation et la transformation digitale des systèmes d’information critiques, avec une expertise reconnue en environnements…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Naoplay	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “Naoplay helps companies prepare their IT systems for the era of data and AI.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Elyone	Exact match	Paris, FranceHQ recorded Sep 28, 2026	1-10	13 contacts →
	Exact match “Depuis 15 ans Elyone accompagne les entreprises dans leur digitalisation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Craftmania	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	11 contacts →
	Exact match “Dans un marché obsédé par le time-to-market, nous défendons une idée simple : une application n'est pas un livrable, c'est un actif.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Audis Conseil	Exact match	Paris, FranceHQ recorded Sep 28, 2026	1-10	10 contacts →
	Exact match “Conseil & Pilotage de Projets - Transformation Digitale - Performance Organisationnelle - Systèmes d'Information - Data” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Precodata	Exact match	Paris, FranceHQ recorded Sep 28, 2026	1-10	9 contacts →
	Exact match “Precodata is a French IT consulting firm, specialized in Data / AI & Cloud architecture.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Innosys	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “InnoSys est une société de services informatique (SSII), créée en 2005 spécialisée en conseil, développement d’application, administration de réseau, sécurité et système…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Septem Consulting	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	7 contacts →
	Exact match “Septem Consulting vous conseille et vous accompagne en apportant des solutions à vos enjeux SI, de transformation digitale et de refonte de vos organisations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	JD Conseil	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	7 contacts →
	Exact match “Depuis 2008, nous accompagnons les entreprises dans leurs projets IT stratégiques : IA, Data, ERP, CRM, SI.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Besteam Conseil	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	7 contacts →
	Exact match “Spécialisés en technologies de pointe #Data #Cloud #DevOps #Agilité, nous intervenons sur des missions de #développement, de migration #cloud, d’architecture, de conduite de…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Concept IT	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	7 contacts →
	Exact match “Créée en 2005, Concept IT est une Entreprise de Service Numérique créée et dirigée sur les principes du Not Only SSII (NoSSII).” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Skill NOW	Exact match	Paris, FranceHQ recorded Sep 28, 2026	1-10	5 contacts →
	Exact match “SKILL NOW, accompagne ses clients dans la transformation et le pilotage de leurs projets informatiques.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Technodym	Exact match	Paris, FranceHQ recorded Sep 28, 2026	1-10	4 contacts →
	Exact match “TECHNODYM est une Société de service et de conseil en informatique.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Mosaic LAB	Exact match	Paris, FranceHQ recorded Sep 28, 2026	1-10	3 contacts →
	Exact match “Mosaic Lab offers an integrated range of services from consulting to custom software development and integration.” Recorded in the RevenueBase company graph · Sep 28, 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 modernization consultancies”. 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 117 legacy system modernization consultancies based in Paris, France

See the full list, filter by size, metro and specialty, and access 245 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Legacy system modernization consultancies based in Paris, France at a glance

As of Sep 28, 2026

32.8%Verified-email coverage

6.4Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured across the whole France list rather than for Paris, so it is reported there. Company counts and contact totals on this page are exact for Paris, over 117 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 Paris, France whose business descriptions match “legacy system modernization consultancies” 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 245 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 September 28, 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.

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

How many legacy system modernization consultancies are there based in Paris, France?

RevenueBase identified 117 company matches for legacy system modernization consultancies associated with Paris, France as of September 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?

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

Which city in France has the most legacy system modernization consultancies?

Paris leads France with 117 company records, followed by Lyon (20) and Toulouse (12).

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 245 professional contacts with verified work emails tracked across these 117 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 September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase 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.