Cybersecurity companies in France
28 companies in the directory are based in France. 24 are vendors and 4 are service firms. Of these, 10 belong to another company or an investor.
The list runs largest first. We rank by revenue from annual reports where a listed company files one, then by staff numbers. Companies with no revenue or staff figure come last.
28 companies, largest first
| Company | Category | Size | Ownership |
|---|---|---|---|
 Thales Cyber Solutions Cybersecurity division of the Thales Group, with ANSSI, CREST, FedRAMP 3PAO, and NATO-cleared personnel. Defence, government, and critical infrastructure penetration testing worldwide. | Penetration testing | 83,020 staff | Owned by Thales |
 Airbus Protect Airbus group cybersecurity consultancy with ANSSI PASSI qualification. Aerospace, defence, and critical infrastructure penetration testing across Europe. | Penetration testing | 500+ staff | Owned by Airbus |
 AgentRidge AgentRidge provides autonomous AI software for penetration testing on local machines. | Penetration testing | Private | |
 Arsen Security Arsen provides a platform for cybersecurity awareness and social engineering simulation. | Security awareness and human risk | Private | |
 BCIT BCIT is a cybersecurity and compliance consulting firm and training organisation based in France. | Security consulting and vCISO | Private | |
 Brain Security Brain Security sells cyber and AI security awareness solutions, fully online. | Security awareness and human risk | Private | |
 CybelAngel CybelAngel provides external threat intelligence and attack surface management services to protect enterprise data and assets. | Attack surface management | Private | |
 CyberVadis CyberVadis provides a managed service and platform for third-party cyber risk management. | Third-party risk and security ratings | Private | |
 Dashlane Dashlane provides credential security and password management for businesses. | Password managers | Private | |
 Exclusive Networks Exclusive Networks is a global cybersecurity specialist that distributes and supports security solutions through partners. | Managed security services | Owned by CD&R and Permira | |
 GLIMPS GLIMPS provides cybersecurity solutions for malware detection and analysis. | Software supply chain and SBOM | Private | |
 Hackuity Hackuity provides a platform that aggregates and prioritises vulnerability data to help security teams manage cyber risk. | Vulnerability management | Private | |
 Laucked Laucked is a French cybersecurity firm based in Toulouse that provides penetration testing and continuous security monitoring for small and medium-sized businesses. | Penetration testing | Private | |
 Mailinblack Mailinblack provides email security, password management, and cybersecurity awareness training for organisations. | Email security | Owned by Seven2 | |
 MDP Data Protection MDP Data Protection sells a compliance platform called Simply and a method called the Continuous Compliance Operating System (CCOS). | GRC and compliance automation | Private | |
 MDSI MDSI is an IT services company based in La Réunion. | Managed security services | Owned by Groupe Factoria | |
 Qevlar AI Qevlar AI provides an autonomous security operations platform that investigates alerts and automates response. | Agentic SOC tools | Private | |
 Qorum Secur'Num Qorum Secur'Num is a French collective of small and medium-sized cybersecurity firms and independent experts. | Security consulting and vCISO | Private | |
 Quarkslab Paris research firm auditing ECUs, ADAS, in-vehicle networks and OTA updates, and selling software protection for ECU firmware. | Automotive cybersecurity | Owned by Airbus | |
 Sekoia Sekoia provides an AI-driven security operations platform for detecting, investigating and responding to cyber threats. | SIEM | Private | |
 SERMA Safety & Security French security evaluation lab (ITSEF/CESTI) recognised by the PCI SSC for PTS device evaluation, plus EMVCo and Common Criteria. | Penetration testing | Owned by SERMA Group | |
 Stormshield Stormshield provides cybersecurity solutions for networks, endpoints, data, and industrial environments. | Firewalls | Private | |
 Trustpair Trustpair provides a platform for fraud prevention and bank account validation for businesses. | Fraud and payment fraud prevention | Owned by Basware | |
 UTAC French test and approval body acting as a UN R155 technical service, with vehicle pentesting and TARA. | Automotive cybersecurity | Owned by Eurazeo | |
 WALLIX WALLIX provides identity and access management and privileged access security software for IT and industrial environments. | Privileged access management | Private | |
 EfficientIP EfficientIP provides DNS, DHCP and IP address management software for network automation and security. | DNS security | Owned by Francisco Partners | |
 Marlink Marlink provides managed network, connectivity and cybersecurity services for remote maritime and land operations. | Managed security services | Private | |
 YesWeHack YesWeHack runs a bug bounty platform connecting organisations with ethical hackers. | Bug bounty and crowdsourced testing | Private |