Company lists · Data refreshed September 2026

Top 25 Platform building firms based in France

Name: Platform building firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 2,953 companies tracked

RevenueBase identified 2,953 platform building firms headquartered in France as of September 2026 and tracks 35,319 professional contacts across them, including 13,395 with verified work emails and 989 with mobile numbers. Paris is the largest hub.

This list covers platform building firms headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

2,953Companies

35,319Contacts tracked

13,395Verified emails

989Mobile numbers

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The 25 largest platform building firms based in France

Ranked by team size

Top 25 of 2,953 platform building firms based in France, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to platform building firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Groupe SII	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	10001+	4,928 contacts →
	Indirect evidence “Le groupe SII est une société d’ingénierie et de conseil en technologies (ICT) et une entreprise de services numériques (ESN) créée en 1979 par Bernard HUVÉ, ingénieur de…” Source: RevenueBase Database · checked Sep 5, 2026
2	SQLI	Indirect evidence	Levallois-perret, FranceHQ checked Sep 5, 2026	1,001-5,000	2,682 contacts →
	Indirect evidence “As leading European customer experience and digital transformation services group, SQLI empowers international brands to generate value through digital innovation.” Source: RevenueBase Database · checked Sep 5, 2026
3	Infotel	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 5, 2026	1,001-5,000	1,735 contacts →
	Indirect evidence “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.).” Source: RevenueBase Database · checked Sep 5, 2026
4	SMILE	Indirect evidence	Asnières Sur Seine, FranceHQ checked Sep 5, 2026	1,001-5,000	1,352 contacts →
	Indirect evidence “We are Technology experts & Business partners.” Source: RevenueBase Database · checked Sep 5, 2026
5	CGI Business Consulting	Indirect evidence	Paris La Défense, FranceHQ checked Sep 5, 2026	10001+	1,270 contacts →
	Indirect evidence “Le numérique est une opportunité pour tous mais chaque secteur d’activité doit l’appréhender de manière unique.” Source: RevenueBase Database · checked Sep 5, 2026
6	SFEIR	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 5, 2026	501-1,000	904 contacts →
	Indirect evidence “SFEIR est une Société d’expertise spécialisée dans le développement d’applications sous toutes leurs formes ( web, mobile, IOT, cloud, data, etc.).” Source: RevenueBase Database · checked Sep 5, 2026
7	Catamania	Indirect evidence	Saint-herblain, FranceHQ checked Sep 5, 2026	1,001-5,000	696 contacts →
	Indirect evidence “Depuis plus de 25 ans, Catamania fait partie des Entreprises de Services du Numérique dynamiques et innovantes qui s’appuie sur ses expertises métiers, techniques et…” Source: RevenueBase Database · checked Sep 5, 2026
8	Sully Group	Indirect evidence	Saint-priest, FranceHQ checked Sep 5, 2026	501-1,000	560 contacts →
	Indirect evidence “Sully Group : Working together to create a useful and sustainable digital environment > 1 global digital services offering: Business Applications, Mobile Applications…” Source: RevenueBase Database · checked Sep 5, 2026
9	Noveo Group	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	501-1,000	327 contacts →
	Indirect evidence “The Noveo group has specialized in design, development and maintenance of digital solutions since 1998.” Source: RevenueBase Database · checked Sep 5, 2026
10	Amiltone	Indirect evidence	Villeurbanne, FranceHQ checked Sep 5, 2026	201-500	314 contacts →
	Indirect evidence “Bienvenue chez Amiltone.” Source: RevenueBase Database · checked Sep 5, 2026
11	Razorfish France	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	293 contacts →
	Indirect evidence “Razorfish est l'agence digitale de Publicis France.” Source: RevenueBase Database · checked Sep 5, 2026
12	Cyllene	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	279 contacts →
	Indirect evidence “Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…” Source: RevenueBase Database · checked Sep 5, 2026
13	Clever AGE	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	268 contacts →
	Indirect evidence “We are 100% digital, and it's in our genes!” Source: RevenueBase Database · checked Sep 5, 2026
14	Ouidou	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	252 contacts →
	Indirect evidence “Fondée en 2017, Ouidou est une entreprise de services du numérique regroupant plus de 250 collaborateurs.” Source: RevenueBase Database · checked Sep 5, 2026
15	Groupe Creative	Indirect evidence	Rennes, FranceHQ checked Sep 5, 2026	201-500	240 contacts →
	Indirect evidence “Since 2008, we have been working with our clients on IT and digital transformation projects.” Source: RevenueBase Database · checked Sep 5, 2026
16	Datasolution	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	236 contacts →
	Indirect evidence “Launched in 2003, DATASOLUTION’s mission is to assist its customers into their digital transformation, whatever BtoB or BtoC.” Source: RevenueBase Database · checked Sep 5, 2026
17	Theodo	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	501-1,000	236 contacts →
	Indirect evidence “A Theodo, toute notre énergie est tournée vers la satisfaction de nos clients.” Source: RevenueBase Database · checked Sep 5, 2026
18	Acelys Services Numériques	Indirect evidence	Montpellier, FranceHQ checked Sep 5, 2026	51-200	169 contacts →
	Indirect evidence “Créée en 1997, Acelys Services Numériques est une entreprise de services numériques (ESN) basée en Occitanie.” Source: RevenueBase Database · checked Sep 5, 2026
19	HR Team Group	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	501-1,000	157 contacts →
	Indirect evidence “Since 2005, HR Team, Digital Services Company, has been ensuring a digital strategy in line with the ambition of its customers.” Source: RevenueBase Database · checked Sep 5, 2026
20	Expertime	Indirect evidence	Viroflay, FranceHQ checked Sep 5, 2026	51-200	151 contacts →
	Indirect evidence “Expertime, Partenaire de votre performance digitale!” Source: RevenueBase Database · checked Sep 5, 2026
21	Illuin Technology	Indirect evidence	Puteaux, FranceHQ checked Sep 5, 2026	51-200	148 contacts →
	Indirect evidence “Forts de leur expertise scientifique et technologique, forts de leur connaissance du Design Thinking et de l'UX, les makers d'Illuin Technology occupent une place singulière, au…” Source: RevenueBase Database · checked Sep 5, 2026
22	Saegus	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	134 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
23	AXOME	Indirect evidence	Saint-etienne, FranceHQ checked Sep 5, 2026	51-200	121 contacts →
	Indirect evidence “Créée en Axome est une agence e-commerce, web et marketing basée à Paris et Saint-Étienne.” Source: RevenueBase Database · checked Sep 5, 2026
24	Web-Atrio	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	111 contacts →
	Indirect evidence “Bienvenue chez WEB-ATRIO, l’#ESN qui change la donne!” Source: RevenueBase Database · checked Sep 5, 2026
25	Ux-Republic	Indirect evidence	Asnières-sur-seine, FranceHQ checked Sep 5, 2026	51-200	99 contacts →
	Indirect evidence “Nous sommes les spécialistes de la conception et du design d’interfaces digitales pour les marques.Nous accompagnons nos clients de l’analyse du problème ou de l’opportunité…” Source: RevenueBase Database · checked Sep 5, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: platform building firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names platform building firms.
Partial evidence: Its own public description names part of platform building firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name platform building firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,953 platform building firms based in France

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Platform building firms based in France at a glance

As of Sep 5, 2026

37.9%Verified-email coverage

2.8%Mobile-number coverage

12.0Average contacts per company

1-10Median size (employees)

27.0%Largest-city concentration · Paris

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

2,284

11-50

532

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

12,5770–30

73531–60

361–90

390–180

77180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among platform building firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in France whose own description of what they do matches “platform building firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names platform building firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among platform building firms, and records with no verified work email. Companies headquartered outside France are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 13,395 across the full list. 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 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Platform building firms by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names platform building firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many platform building firms are there based in France?

RevenueBase identified 2,953 platform building firms headquartered in France as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Groupe SII, headquartered in Paris, tops this list with the largest team on record.

Which city has the most platform building firms?

Paris leads with 796 headquartered companies, followed by Lyon (116) and Bordeaux (87).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 13,395 verified decision-maker contacts tracked across these 2,953 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 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 Smart Search, 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.