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Products & Solutions
OpenCTI
Open-source cyber threat intelligence platform that collects, correlates and operationalises threat data using the STIX 2.1 standard. It connects to 300+ intelligence feeds and security tools, maps threats to MITRE ATT&CK and provides automation and agentic AI to cut enrichment time from hours to seconds. Available as a self-hosted community edition and a licensed enterprise edition with advanced access controls, AI features and SaaS hosting.
OpenAEV
Open-source adversarial exposure validation platform that simulates realistic attack scenarios to test an organisation's technical controls, processes and people. Scenarios are built from threat intelligence and MITRE ATT&CK mappings, covering everything from atomic breach simulations to full crisis tabletop exercises across CISO, IT, legal and executive teams. Integrates with 30+ security tools including SIEM, EDR and XDR platforms.
Videos
Introduction to the OpenCTI platform
Overview - Navigating OpenCTI
Community Call: OpenBAS Overview
About
Filigran is a French cybertech company founded in September 2022 by Samuel Hassine and Julien Richard. Based in France with offices across Europe, North America and Asia-Pacific, it builds an open-source eXtended Threat Management (XTM) platform that unifies cyber threat intelligence and exposure validation under one architecture. Its two core products, OpenCTI and OpenAEV, are free to deploy as community editions and licensed as enterprise offerings.
Offices
Paris, FranceNew York, United StatesLondon, United KingdomFrankfurt, GermanyBerlin, GermanyMilan, ItalyMadrid, SpainSingaporeBacked by
EurazeoAccelInsight PartnersMoonfireT.Capital (Deutsche Telekom)
Customers & Partners
European CommissionFBINYC Cyber CommandNetherlands National Police CorpsSwiss Federal Department of Foreign Affairs (FDFA)Bouygues TelecomRivianHarfangLabRecorded FutureSekoia.ioSplunkCrowdStrikeAirbus Defence and Space CyberSentinelOneMandiant
Timeline
2025-10
Raised $58 million Series C led by Eurazeo, bringing total funding to over $100 million.
2025-06
Selected for French Tech 120, a French government programme for the country's fastest-growing tech companies.
2024-10
Raised $35 million Series B led by Insight Partners; community surpassed 4,300 contributors.
2024-02
Raised €15 million in Series A funding.
2023-06
Raised €5 million in seed funding.
2022-09
Founded in France by Samuel Hassine and Julien Richard.
Open Positions (6)
the careers site
Products & Solutions
OpenCTI
Open-source cyber threat intelligence platform that collects, correlates and operationalises threat data using the STIX 2.1 standard. It connects to 300+ intelligence feeds and security tools, maps threats to MITRE ATT&CK and provides automation and agentic AI to cut enrichment time from hours to seconds. Available as a self-hosted community edition and a licensed enterprise edition with advanced access controls, AI features and SaaS hosting.
OpenAEV
Open-source adversarial exposure validation platform that simulates realistic attack scenarios to test an organisation's technical controls, processes and people. Scenarios are built from threat intelligence and MITRE ATT&CK mappings, covering everything from atomic breach simulations to full crisis tabletop exercises across CISO, IT, legal and executive teams. Integrates with 30+ security tools including SIEM, EDR and XDR platforms.
Videos
Introduction to the OpenCTI platform
Overview - Navigating OpenCTI
Community Call: OpenBAS Overview
Open Positions (6)
the careers site
About
Filigran is a French cybertech company founded in September 2022 by Samuel Hassine and Julien Richard. Based in France with offices across Europe, North America and Asia-Pacific, it builds an open-source eXtended Threat Management (XTM) platform that unifies cyber threat intelligence and exposure validation under one architecture. Its two core products, OpenCTI and OpenAEV, are free to deploy as community editions and licensed as enterprise offerings.
Offices
Paris, FranceNew York, United StatesLondon, United KingdomFrankfurt, GermanyBerlin, GermanyMilan, ItalyMadrid, SpainSingaporeBacked by
EurazeoAccelInsight PartnersMoonfireT.Capital (Deutsche Telekom)
Customers & Partners
European CommissionFBINYC Cyber CommandNetherlands National Police CorpsSwiss Federal Department of Foreign Affairs (FDFA)Bouygues TelecomRivianHarfangLabRecorded FutureSekoia.ioSplunkCrowdStrikeAirbus Defence and Space CyberSentinelOneMandiant
Timeline
2025-10
Raised $58 million Series C led by Eurazeo, bringing total funding to over $100 million.
2025-06
Selected for French Tech 120, a French government programme for the country's fastest-growing tech companies.
2024-10
Raised $35 million Series B led by Insight Partners; community surpassed 4,300 contributors.
2024-02
Raised €15 million in Series A funding.
2023-06
Raised €5 million in seed funding.
2022-09
Founded in France by Samuel Hassine and Julien Richard.
Latest reports
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