Company lists · Data refreshed September 2026
Top 25 Security research firms based in France
RevenueBase identified 274 security research firms headquartered in France as of September 2026 and tracks 4,277 professional contacts across them, including 1,203 with verified work emails and 74 with mobile numbers. Paris is the largest hub.
This list covers security research 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 6, 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.
The 25 largest security research firms based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 506 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 382 | ||||
“NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 171 | ||||
“Synacktiv is an offensive security company founded in 2012 by several security experts.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 111 | ||||
“Our services : Penetration tests and Security Audits, Gap Analysis and PCI DSS Certification, CERT-XMCO (vulnerability watch, Cyber Survellance/Threat Intelligence, Forensics).” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 95 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 75 | ||||
“Acteur majeur de la cybersécurité, CS Group s'appuie sur ses équipes sont composées d’experts pluridisciplinaires qui offrent à nos clients une vision claire et une capacité…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 66 | ||||
“LEXFO is an offensive security firm that assesses and strengthens your systems with an expert, pragmatic, results-driven approach.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 48 | ||||
“Expertise in cybersecurity testing takes years to build but can be lost in seconds.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 47 | ||||
“DCIT Conseil, société de services de consultation spécialisée dans la cybersécurité et les technologies de l'information.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 37 | ||||
“To be confident in your cyber defences, every person and technology must be confronted by reality.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 33 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 32 | ||||
“Cybersecurity company founded by security experts providing the following services: Security audits, Vulnerability research, SecOps, SecArch and Trainings” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 32 | ||||
“COGICEO is a company founded in 2012, specializing in IT security audits and penetration testing (pentest).” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 30 | ||||
“Fondée en 2001, ACE Service concentre son activité sur son savoir-faire : la sécurité des systèmes d'information.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 29 | ||||
“We provide services and technologies to identify, detect and recover from critical threats and vulnerabilities on signalling protocols like SS7/SIGTRAN, Diameter, GPRS/GTP, IMS…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 28 | ||||
“Fuzzinglabs is a cybersecurity startup specializing in vulnerability research, fuzzing, offensive and blockchain security.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 27 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 22 | ||||
“MANIKA, l'engagement par nature.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 21 | ||||
“Conseil en Cybersécurité : Stratégie, Gouvernance, Conformité, Audit et Gestion de crise” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 21 | ||||
“Pour de nombreuses entreprises, la thématique de la sécurité arrive après compromission.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | StroopleIndirect evidence | 18 | |||
“Independent expertise dedicated to your cybersecurity Initiating change through trust and resilience.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 17 | ||||
“Network, Security and Cyber Security Company” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 16 | ||||
“Founded in 2002, on the French MoD needs, DIATEAM is a R&D company specializing in computer security.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 15 | ||||
“Iparcus; société d'expertise et de conseil en cybersécurité.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 | ||||
“Nous aidons les entreprises à sécuriser leurs actifs, tels que leurs applications web et leurs systèmes d'information, tout en renforçant la sécurité globale des organisations.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 274 security research firms based in France
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Security research firms based in France at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 security research 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 “security research 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 security research 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, 1,203 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 6, 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.
Security research firms by metro
- Security research firms in Paris92
Frequently asked
How many security research firms are there based in France?
RevenueBase identified 274 security research 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 security research firms?
Paris leads with 92 headquartered companies, followed by Lyon (10) and Toulouse (9).
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 1,203 verified decision-maker contacts tracked across these 274 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 6, 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.
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