Company lists · Data refreshed September 2026

Top 25 Infosec pr firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 136 companies tracked

RevenueBase identified 136 infosec pr firms headquartered in France as of September 2026 and tracks 2,229 professional contacts across them, including 743 with verified work emails. Paris is the largest hub.

This list covers infosec pr 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 28, 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 28, 2026 86% judged on-target in blind review

136Companies

2,229Contacts tracked

743Verified emails

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The 25 largest infosec pr firms based in France

Ranked by team size

Top 25 of 136 infosec pr firms based in France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infosec pr 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	own.security	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	506 contacts →
	Indirect evidence “Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Source: RevenueBase Database · checked Sep 28, 2026
2	Synacktiv	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	201-500	171 contacts →
	Indirect evidence “Synacktiv is an offensive security company founded in 2012 by several security experts.” Source: RevenueBase Database · checked Sep 28, 2026
3	Evabssi	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	201-500	117 contacts →
	Indirect evidence “EvaBssi is an international consulting firm specialized in cybersecurity and IS performance.” Source: RevenueBase Database · checked Sep 28, 2026
4	Dcit Conseil	Indirect evidence	Sene, FranceHQ checked Sep 28, 2026	n/a	47 contacts →
	Indirect evidence “DCIT Conseil, société de services de consultation spécialisée dans la cybersécurité et les technologies de l'information.” Source: RevenueBase Database · checked Sep 28, 2026
5	Ornisec	Indirect evidence	Rennes, FranceHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “ORNISEC est un cabinet d’expertise à la pointe de la cybersécurité, qualifié PASSI RGS, PACS et PASSI LPM par l'ANSSI.” Source: RevenueBase Database · checked Sep 28, 2026
6	Excube	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Notre positionnement Fondé en 2018, EXCUBE, cabinet-conseil spécialisé en Cybersécurité, délivre ses prestations en s’appuyant sur la connaissance du métier de ses clients…” Source: RevenueBase Database · checked Sep 28, 2026
7	LA Nouvelle Agence	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	32 contacts →
	Partial evidence “La Nouvelle Agence is a PR firm specializing in the worlds of internet, digital media and IT – ecosystems where our experts are recognised for their in-depth knowledge and ability…” Source: RevenueBase Database · checked Sep 28, 2026
8	Randorisec	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	32 contacts →
	Indirect evidence “Cybersecurity company founded by security experts providing the following services: Security audits, Vulnerability research, SecOps, SecArch and Trainings” Source: RevenueBase Database · checked Sep 28, 2026
9	Sec-It	Indirect evidence	Levallois-perret, FranceHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “SEC-IT, filiale du groupe MCA, est le partenaire de référence en cybersécurité, combinant expertise en audit conseil, sécurité opérationnelle et formation pour accompagner les…” Source: RevenueBase Database · checked Sep 28, 2026
10	Five Nines	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “Five Nines est née en 2019 d’un constat simple, celui d’un manque crucial de compétences et d’expérience dans la sécurisation de la transformation digitale des entreprises.” Source: RevenueBase Database · checked Sep 28, 2026
11	Cyberdian Groupe	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “Créé en janvier 2017, Cyberdian est un cabinet de conseil en cybersécurité spécialisé dans l'accompagnement, l'analyse des risques, la stratégie et la mise en œuvre des moyens…” Source: RevenueBase Database · checked Sep 28, 2026
12	BCW France	Indirect evidence	Levallois-Perret, FranceHQ checked Sep 28, 2026	51-200	24 contacts →
	Indirect evidence “Créée en juin 2012 par la fusion de deux agences « historiques » du marché français, Burson-Marsteller i&e réunit 120 collaborateurs aux parcours très divers (consultants…” Source: RevenueBase Database · checked Sep 28, 2026
13	Alcyconie	Indirect evidence	Région De Rennes, FranceHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “Alcyconie est l'acteur de référence en gestion de crise d'origine cyber.” Source: RevenueBase Database · checked Sep 28, 2026
14	Kalamari	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “Kalamari is an international public relations agency with offices in Europe and the United States.” Source: RevenueBase Database · checked Sep 28, 2026
15	Sec-Cure	Indirect evidence	Mérignies, FranceHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Sec-Cure est la marque commerciale de DC Communication.” Source: RevenueBase Database · checked Sep 28, 2026
16	Vaadata	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “We support organisations of all sizes and across all sectors with - penetration testing on all types of targets (web and mobile apps, infrastructure, networks, cloud, IoT, etc.)-…” Source: RevenueBase Database · checked Sep 28, 2026
17	AKYL	Indirect evidence	Pantin, FranceHQ checked Sep 28, 2026	1-10	11 contacts →
	Indirect evidence “LA CYBERSÉCURITÉ, VERSION AKYL Une approche aussi pragmatique que passionnée.” Source: RevenueBase Database · checked Sep 28, 2026
18	Majorelle PR & Events	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	11 contacts →
	Partial evidence “Majorelle PR & Events est une agence de communication spécialisée en relations presse et publiques, basée à Paris.” Source: RevenueBase Database · checked Sep 28, 2026
19	Cyberspector	Indirect evidence	Paris & Cotonou, FranceHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “CyberSpector SAS is an innovative consulting firm specializing in cybersecurity, domain name management, Internet security, as well as systems and digital project engineering.” Source: RevenueBase Database · checked Sep 28, 2026
20	Highjack Offensive Cybersecurity	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “Chez High Jack, nous sommes bien plus que des accompagnateurs de digitalisation, nous sommes des catalyseurs de la transformation numérique de votre structure!” Source: RevenueBase Database · checked Sep 28, 2026
21	Andrew Lloyd & Associates	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “Andrew Lloyd & Associates is an international public relations consulting group for leading edge companies and organizations involved in emerging technologies.” Source: RevenueBase Database · checked Sep 28, 2026
22	Corpcom	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “CORPCOM is a strategic communication firm launched in 2014 by Guillaume Foucault.” Source: RevenueBase Database · checked Sep 28, 2026
23	Limon IT	Indirect evidence	Saint-étienne, FranceHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
24	Agence 3icom	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “Première agence RP du marché qui fait votre actualité et celle des Français, avec une expertise de plus de 10 ans dans les relations presse.” Source: RevenueBase Database · checked Sep 28, 2026
25	Blackbart	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “BlackBart est un cabinet de conseil en cybersécurité accompagnant les organisations publiques et privées dans la sécurisation de leurs environnements numériques et la maîtrise de…” Source: RevenueBase Database · checked Sep 28, 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: infosec pr 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 infosec pr firms.
Partial evidence: Its own public description names part of infosec pr firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infosec pr 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 136 infosec pr firms based in France

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Infosec pr firms based in France at a glance

As of Sep 28, 2026

33.3%Verified-email coverage

16.4Average contacts per company

1-10Median size (employees)

45.6%Largest-city concentration · Paris

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

102

11-50

51-200

201-500

501-1,000

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 136 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 infosec pr 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 “infosec pr 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 infosec pr 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 infosec pr 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, 743 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 28, 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.

Infosec pr firms by metro

Infosec pr firms in Paris62

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 infosec pr 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 infosec pr firms are there based in France?

RevenueBase identified 136 infosec pr 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?

own.security, headquartered in Paris, tops this list with the largest team on record.

Which city has the most infosec pr firms?

Paris leads with 62 headquartered companies, followed by Lyon (8) and Rennes (3).

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 743 verified decision-maker contacts tracked across these 136 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 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 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.