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, how directly it supports the match, 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 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

2,953Companies

35,319Contacts tracked

13,395Verified emails

989Mobile numbers

Explore all 2,953 companies → Free signup · no credit card · 500 free credits

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. Evidence rates how directly each company's own description names platform building firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Groupe SIIIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	10001+	4,928
	“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: company website · checked Sep 5, 2026
2	SQLIIndirect evidence	Levallois-perret, FranceHQ checked Sep 5, 2026	1,001-5,000	2,682
	“As leading European customer experience and digital transformation services group, SQLI empowers international brands to generate value through digital innovation.” Source: company website · checked Sep 5, 2026
3	InfotelIndirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 5, 2026	1,001-5,000	1,735
	“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: company website · checked Sep 5, 2026
4	SMILEIndirect evidence	Asnières Sur Seine, FranceHQ checked Sep 5, 2026	1,001-5,000	1,352
	“We are Technology experts & Business partners.” Source: company website · checked Sep 5, 2026
5	CGI Business ConsultingIndirect evidence	Paris La Défense, FranceHQ checked Sep 5, 2026	10001+	1,270
	“Le numérique est une opportunité pour tous mais chaque secteur d’activité doit l’appréhender de manière unique.” Source: company website · checked Sep 5, 2026
6	SFEIRIndirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 5, 2026	501-1,000	904
	“SFEIR est une Société d’expertise spécialisée dans le développement d’applications sous toutes leurs formes ( web, mobile, IOT, cloud, data, etc.).” Source: company website · checked Sep 5, 2026
7	CatamaniaIndirect evidence	Saint-herblain, FranceHQ checked Sep 5, 2026	1,001-5,000	696
	“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: company website · checked Sep 5, 2026
8	Sully GroupIndirect evidence	Saint-priest, FranceHQ checked Sep 5, 2026	501-1,000	560
	“Sully Group : Working together to create a useful and sustainable digital environment > 1 global digital services offering: Business Applications, Mobile Applications…” Source: company website · checked Sep 5, 2026
9	Noveo GroupIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	501-1,000	327
	“The Noveo group has specialized in design, development and maintenance of digital solutions since 1998.” Source: company website · checked Sep 5, 2026
10	AmiltoneIndirect evidence	Villeurbanne, FranceHQ checked Sep 5, 2026	201-500	314
	“Bienvenue chez Amiltone.” Source: company website · checked Sep 5, 2026
11	Razorfish FranceIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	293
	“Razorfish est l'agence digitale de Publicis France.” Source: company website · checked Sep 5, 2026
12	CylleneIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	279
	“Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…” Source: company website · checked Sep 5, 2026
13	Clever AGEIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	268
	“We are 100% digital, and it's in our genes!” Source: company website · checked Sep 5, 2026
14	OuidouIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	252
	“Fondée en 2017, Ouidou est une entreprise de services du numérique regroupant plus de 250 collaborateurs.” Source: company website · checked Sep 5, 2026
15	Groupe CreativeIndirect evidence	Rennes, FranceHQ checked Sep 5, 2026	201-500	240
	“Since 2008, we have been working with our clients on IT and digital transformation projects.” Source: company website · checked Sep 5, 2026
16	DatasolutionIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	236
	“Launched in 2003, DATASOLUTION’s mission is to assist its customers into their digital transformation, whatever BtoB or BtoC.” Source: company website · checked Sep 5, 2026
17	TheodoIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	501-1,000	236
	“A Theodo, toute notre énergie est tournée vers la satisfaction de nos clients.” Source: company website · checked Sep 5, 2026
18	Acelys Services NumériquesIndirect evidence	Montpellier, FranceHQ checked Sep 5, 2026	51-200	169
	“Créée en 1997, Acelys Services Numériques est une entreprise de services numériques (ESN) basée en Occitanie.” Source: company website · checked Sep 5, 2026
19	HR Team GroupIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	501-1,000	157
	“Since 2005, HR Team, Digital Services Company, has been ensuring a digital strategy in line with the ambition of its customers.” Source: company website · checked Sep 5, 2026
20	ExpertimeIndirect evidence	Viroflay, FranceHQ checked Sep 5, 2026	51-200	151
	“Expertime, Partenaire de votre performance digitale!” Source: company website · checked Sep 5, 2026
21	Illuin TechnologyIndirect evidence	Puteaux, FranceHQ checked Sep 5, 2026	51-200	148
	“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: company website · checked Sep 5, 2026
22	SaegusIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	134
	“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: company website · checked Sep 5, 2026
23	AXOMEIndirect evidence	Saint-etienne, FranceHQ checked Sep 5, 2026	51-200	121
	“Créée en Axome est une agence e-commerce, web et marketing basée à Paris et Saint-Étienne.” Source: company website · checked Sep 5, 2026
24	Web-AtrioIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	111
	“Bienvenue chez WEB-ATRIO, l’#ESN qui change la donne!” Source: company website · checked Sep 5, 2026
25	Ux-RepublicIndirect evidence	Asnières-sur-seine, FranceHQ checked Sep 5, 2026	51-200	99
	“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: company website · checked Sep 5, 2026

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

1-10Median size (employees)

ParisLargest hub · 796 HQs

989Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

2,284

11-50

532

51-200

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

12,577

31–60

735

61–90

90–180

180+

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 evidence 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 SmartSearch, 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.
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 an evidence 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

Platform building firms in Paris796
Platform building firms in Lyon116
Platform building firms in Bordeaux87
Platform building firms in Toulouse72
Platform building firms in Marseille55
Platform building firms in Lille49
Platform building firms in Montpellier46
Platform building firms in Nantes38
Platform building firms in Strasbourg33
Platform building firms in Rennes29
Platform building firms in Nice26

Frequently asked

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 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.