Company lists · Data refreshed September 2026

Top 25 Cybersecurity public relations firms based in Paris, France

Name: Cybersecurity public relations firms 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 82 companies tracked

RevenueBase identified 82 cybersecurity public relations firms headquartered in Paris, France as of September 2026 and tracks 1,588 professional contacts across them, including 519 with verified work emails. Across France, Paris is the largest hub for this category.

This list covers cybersecurity public relations 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, 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

82Companies

1,588Contacts tracked

519Verified emails

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The 25 largest cybersecurity public relations firms based in Paris, France

Ranked by team size

Top 25 of 82 cybersecurity public relations firms based in Paris, France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity public relations 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	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	506 contacts →
	Partial 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	ERIUM	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	37 contacts →
	Indirect evidence “To be confident in your cyber defences, every person and technology must be confronted by reality.” Source: RevenueBase Database · checked Sep 28, 2026
3	LA Nouvelle Agence	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	32 contacts →
	Indirect 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
4	Randorisec	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	32 contacts →
	Partial 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
5	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
6	STEEF	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Cabinet de Conseils, Créatif et Authentique construit autour d’une communauté composée d’Experts en Cybersécurité.” Source: RevenueBase Database · checked Sep 28, 2026
7	Majorelle PR & Events	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	11 contacts →
	Strong 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
8	Cybertic	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “Cyber attaque, pénétration, hameçonnage… Depuis 2010 et la multiplication des Cyber-attaques, la cyber sécurité n’est plus une option pour les DSI, sa maîtrise est devenu…” Source: RevenueBase Database · checked Sep 28, 2026
9	Kamea Security	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Our services- Pentest / cybersecurity audit - Red Team as a Service - CISO as a Service - Risk Assessment” Source: RevenueBase Database · checked Sep 28, 2026
10	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
11	Andrew Lloyd & Associates	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	8 contacts →
	Strong 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
12	Blackbart	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial 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
13	Maguen Cyber	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	7 contacts →
	Indirect evidence “Maguen Cyber was created to provide its clients with the right security services.” Source: RevenueBase Database · checked Sep 28, 2026
14	Leviam	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “Leviam est un cabinet de conseil spécialisé dans la cybersécurité.” Source: RevenueBase Database · checked Sep 28, 2026
15	Straad.A	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Membre de #NUMEUM et du #CyberCercle, STRAAD.A, structure de conseil et d'expertise en sécurité globale, se positionne comme un partenaire de l'anticipation et de la maitrise des…” Source: RevenueBase Database · checked Sep 28, 2026
16	Defenso	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Defenso est un cabinet de conseil indépendant spécialisé en ingénierie de Cyberdéfense.” Source: RevenueBase Database · checked Sep 28, 2026
17	CNC Expertise	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “CnC Expertise est un cabinet d’expertise en assurance spécialisé dans les réponses à incident cyber et l'expertise des sinistres liés aux technologies de l’information.” Source: RevenueBase Database · checked Sep 28, 2026
18	Lafrenchcom	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “LaFrenchCom est une agence de communication de crise réputée implantée à Paris.” Source: RevenueBase Database · checked Sep 28, 2026
19	WELAN	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “WELAN est une société de conseil en cybersécurité qui accompagne les entreprises de toutes tailles désireuses de se protéger contre les menaces numériques croissantes.” Source: RevenueBase Database · checked Sep 28, 2026
20	Cysafe Consulting	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “CySAFE Consulting est un cabinet de conseil spécialisé en cybersécurité et management des risques qui accompagne les grandes, comme les petites entreprises, ainsi que les…” Source: RevenueBase Database · checked Sep 28, 2026
21	Volga Relations Publiques	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Expert des relations presse, nous façonnons votre image pour en faire une réussite médiatique.” Source: RevenueBase Database · checked Sep 28, 2026
22	Exatrack	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “Au cours de ces dernières années le nombre d’attaques informatiques a connu une très forte augmentation, ciblant aussi bien les gouvernements que les sociétés privées.” Source: RevenueBase Database · checked Sep 28, 2026
23	Novastill	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “NovaStill a la conviction profonde que la cybersécurité est un catalyseur du succès de nos clients qui sont aussi nos partenaires.” Source: RevenueBase Database · checked Sep 28, 2026
24	MA Cyber	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “MA Cyber vous accompagne dans la sécurisation de votre système d'information.” Source: RevenueBase Database · checked Sep 28, 2026
25	Caeirus	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Fondé en 2017, CAEIRUS est un cabinet d'expertise spécialisé en cybersécurité qui accompagne les entreprises à répondre aux problématiques sécurité au sein de leur système…” 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: cybersecurity public relations 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 cybersecurity public relations firms.
Partial evidence: Its own public description names part of cybersecurity public relations firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity public relations 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 82 cybersecurity public relations firms based in Paris, France

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Cybersecurity public relations firms based in Paris, France at a glance

As of Sep 28, 2026

32.7%Verified-email coverage

19.4Average 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 82 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 cybersecurity public relations 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 Paris, France whose own description of what they do matches “cybersecurity public relations 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 cybersecurity public relations 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 cybersecurity public relations 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 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, 519 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.

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 cybersecurity public relations 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 cybersecurity public relations firms are there based in Paris, France?

RevenueBase identified 82 cybersecurity public relations 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?

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

Which city in France has the most cybersecurity public relations firms?

Paris leads France with 82 headquartered companies, followed by Lyon (9) and Rennes (4).

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 519 verified decision-maker contacts tracked across these 82 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.