Company lists · Data refreshed September 2026
Top 25 Nonprofit cybersecurity companies based in Paris, France
RevenueBase identified 74 nonprofit cybersecurity companies headquartered in Paris, France as of September 2026 and tracks 2,529 professional contacts across them, including 1,054 with verified work emails. Across France, Paris is the largest hub for this category.
This list covers nonprofit cybersecurity companies 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 29, 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.
The 25 largest nonprofit cybersecurity companies based in Paris, France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 382 contacts → | ||||
Partial evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 171 contacts → | ||||
Indirect evidence “Synacktiv is an offensive security company founded in 2012 by several security experts.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 111 contacts → | ||||
Indirect evidence “Our services : Penetration tests and Security Audits, Gap Analysis and PCI DSS Certification, CERT-XMCO (vulnerability watch, Cyber Survellance/Threat Intelligence, Forensics).” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 95 contacts → | ||||
Indirect evidence “Fondée en 2011 par Fred Raynal, Quarkslab est une entreprise française spécialisée dans la cybersécurité et plus spécifiquement dans la protection et l'analyse des logiciels.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 39 contacts → | ||||
Indirect evidence “FeelAgile est une start-up innovante spécialisée dans la conformité et la certification en cybersécurité.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 36 contacts → | ||||
Partial evidence “CrowdSec is a leader in security blocklists, reshaping cybersecurity with its proactive defense strategy and unique collaborative approach.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 29 contacts → | ||||
Indirect evidence “Dans un monde où le digital imprègne chaque aspect de nos vies, les risques numériques ne sont plus une menace abstraite.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 contacts → | ||||
Indirect evidence “ZeroTrust fournit aux PME-ETI une protection totale de leurs actifs et de leurs données.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Indirect evidence “Startup, VSE and SME specialists, at Cyber Experts, we build a solid digital rampart for your company, allowing it to strengthen itself against cyber attackers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 5 contacts → | ||||
Indirect evidence “Leviam est un cabinet de conseil spécialisé dans la cybersécurité.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Indirect evidence “Defenso est un cabinet de conseil indépendant spécialisé en ingénierie de Cyberdéfense.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Partial evidence “ENCELIS provides specific services related to Cybersecurity : Conferences, Training, Audit, Red Team, Strategic planning.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “Cendium cyberdefense est un cabinet de conseil en cybersécurité faisant appel à des experts indépendants en sécurité informatique et protection des données.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Vous êtes éditeur de logiciels et vos clients vous demandent toujours plus de garanties sur votre maturité cyber?” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Partial evidence “A cybersecurity firm with a mission to protect all kinds of organisations, leveraging partnerships across the spectrum” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: nonprofit cybersecurity companies. 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 nonprofit cybersecurity companies.
- Partial evidence
- Its own public description names part of nonprofit cybersecurity companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name nonprofit cybersecurity companies. 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 74 nonprofit cybersecurity companies based in Paris, France
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Nonprofit cybersecurity companies based in Paris, France at a glance
As of Sep 29, 2026Companies by employee count
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 74 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 nonprofit cybersecurity companies, 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 “nonprofit cybersecurity companies”. 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 nonprofit cybersecurity companies), 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 nonprofit cybersecurity companies, 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, 1,054 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 29, 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 nonprofit cybersecurity companies, 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 nonprofit cybersecurity companies are there based in Paris, France?
RevenueBase identified 74 nonprofit cybersecurity companies 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 nonprofit cybersecurity companies?
Paris leads France with 74 headquartered companies, followed by Toulouse (6) and Lyon (5).
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 1,054 verified decision-maker contacts tracked across these 74 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 29, 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.
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