Paris-based cybersecurity startup Filigran has successfully raised $35 million in a Series B funding round. This significant capital injection comes just months after the company secured $16 million in Series A funding, signaling rapid growth and high investor confidence in its threat management technology.
Scaling the Open-Source Advantage
At the core of Filigran’s rapid expansion is OpenCTI, an open-source threat intelligence platform. The tool enables public and private sector organizations to aggregate threat data from diverse sources, enriching it with specialized intelligence from industry leaders like CrowdStrike, SentinelOne, and Sekoia.
The platform’s open-source version has gained massive traction, boasting millions of downloads and active contributions from over 4,300 cybersecurity professionals. High-profile entities, including the FBI, the European Commission, and the New York City Cyber Command, rely on the software to manage their threat landscapes.
Building a Comprehensive XTM Suite
Filigran is leveraging its momentum to develop a full-fledged eXtended Threat Management (XTM) suite. This ecosystem includes:
- OpenCTI: The flagship threat intelligence platform.
- OpenBAS: A breach and attack simulation platform designed to identify security vulnerabilities.
The company intends to unify these tools, allowing users to gain a comprehensive overview of potential risks. By 2026, Filigran aims to roll out a third product, creating a suite that offers end-to-end solutions for the increasingly complex cybersecurity challenges faced by modern enterprises.
Enterprise Adoption and Global Expansion
Filigran’s enterprise edition, available as a SaaS product or via on-premises deployment, has already been adopted by major global players such as Airbus, Thales, Marriott, Hermès, Rivian, and Bouygues Telecom.
To support its mission, the company is looking toward community-driven growth. Inspired by the collaborative models of GitHub and Hugging Face, Filigran plans to launch XTM Hub by the end of the year. This platform will serve as a central forum for the cybersecurity community to share tradecraft, access resources, and connect within the Filigran ecosystem.
Strategic Funding and International Growth
The Series B round was led by Insight Partners, with continued participation from existing investors Accel and Moonfire. The new funding will be directed toward aggressive product development and international market penetration.
While Filigran currently maintains operations in France, the United States, and Australia, the capital will facilitate expansion into key new markets, including Germany, Japan, and Singapore.