Company lists · Data refreshed September 2026

Top 24 Platform building firms based in Paris, France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 796 companies tracked

RevenueBase identified 796 platform building firms headquartered in Paris, France as of September 2026 and tracks 14,332 professional contacts across them, including 5,660 with verified work emails. Paris is the largest hub.

This list covers platform building firms headquartered in Paris, 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

796Companies

14,332Contacts tracked

5,660Verified emails

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The 24 largest platform building firms based in Paris, France

Ranked by team size

Top 24 of 796 platform building firms based in Paris, 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	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
3	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
4	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
5	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
6	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
7	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
8	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
9	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
10	Eleven LabsIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	92
	“Créé en 2011, Eleven Labs est une agence de conseil et d’ingénierie web & IA reconnue pour son excellence technique et la qualité de ses profils.” Source: company website · checked Sep 5, 2026
11	MinotoreIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	84
	“Minotore was founded in 2013 by traders and financial engineers from the largest European banking groups.” Source: company website · checked Sep 5, 2026
12	ColorzIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	80
	“Colorz est une agence créative digitale.” Source: company website · checked Sep 5, 2026
13	ARNEOIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	74
	“Arneo est une agence digitale créative et responsable qui accompagne les organisations dans la conception et le développement d'écosystèmes numériques performants.” Source: company website · checked Sep 5, 2026
14	ArkeupIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	501-1,000	64
	“Arkeup conçoit et met en œuvre pour ses clients des applications et des sites webs innovants, notamment dans les domaines du commerce électronique, de la mobilité et du…” Source: company website · checked Sep 5, 2026
15	Dernier CRIIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	63
	“Dernier Cri is a digital product factory specialized in the design and development of digital products.” Source: company website · checked Sep 5, 2026
16	NeoxiaIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	62
	“Since octobre 2023, Neoxia is a Deloitte business!” Source: company website · checked Sep 5, 2026
17	L'atelierIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	60
	“L’Atelier est une société de conseil tech au service des entreprises pour la création de produits web et mobiles.” Source: company website · checked Sep 5, 2026
18	DiggersIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	58
	“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…” Source: company website · checked Sep 5, 2026
19	Digital UnicornIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	57
	“Digital Unicorn est un studio digital spécialisé dans la conception, le design et le développement de projets digitaux performants, innovants et sur mesure.” Source: company website · checked Sep 5, 2026
20	KanbiosIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	56
	“Pure player du conseil digital, nous souhaitons être un partenaire de confiance, concepteur et accélérateur de projets.” Source: company website · checked Sep 5, 2026
21	Keley ConsultingIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	56
	“From strategy to roll-out, from ideas to reality.” Source: company website · checked Sep 5, 2026
22	IRLYIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	53
	“Our purpose Irly provides consulting expertise to build the next generation of corporate functions.” Source: company website · checked Sep 5, 2026
23	Vxplore TechnologiesIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	52
	“At Vxplore Technologies, innovation remains at the center of our existence.” Source: company website · checked Sep 5, 2026
24	FidesioIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	50
	“Located in the heart of Paris, our team puts all its expertise to their clients, to facilitate the implementation and sustainability of their projects to create websites and web…” Source: company website · checked Sep 5, 2026

Showing 24 of 796 platform building firms based in Paris, France

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Platform building firms based in Paris, France at a glance

As of Sep 5, 2026

1-10Median size (employees)

ParisLargest hub · 796 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

552

11-50

194

51-200

201-500

501-1,000

10001+

Email recency for this list is measured across the whole France list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Paris, over 796 companies.

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 Paris, 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 Paris 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, 5,660 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 in France

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 Paris, France?

RevenueBase identified 796 platform building firms headquartered in Paris, 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 5,660 verified decision-maker contacts tracked across these 796 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.