10 Oct 2025

"Hogan Lovells Advises Accel and Insight Partners in Record Cybersecurity Funding Round for Filigran"

"Hogan Lovells advised Accel and Insight Partners in a significant funding round for Filigran, marking the largest cybersecurity investment in France to date. Founded in 2022 in Paris, Filigran specializes in cybersecurity threat management and is known for its Open CTI platform, used by over 4,000 organizations globally, including the FBI. This Series C funding, led by Eurazeo with support from Deutsche Telekom and existing investors, will enable Filigran to expand internationally, particularly in the U.S., Japan, and Saudi Arabia."

Hogan Lovells advised Accel and Insight Partners in connection with the latest funding round for Filigran. This transaction marks the largest ever in the cybersecurity sector in France, bringing Filigran's total funding to over €100 million within just three years of its establishment. Founded in 2022 in Paris by Samuel Hassine and Julien Richard, Filigran specializes in cybersecurity threat management and is particularly known for its Open CTI platform, an open-source threat intelligence solution used by over 4,000 organizations worldwide, including the FBI and the French Ministry of the Interior. The Series C funding round was led by Eurazeo, with support from Deutsche Telekom and historical investors Accel and Insight Partners. This new round of financing will enable Filigran to continue its international expansion, particularly in the United States, as well as in new strategic regions such as Japan and Saudi Arabia. The Hogan Lovells team consisted of Hélène Parent (partner) and Pierre Blanchard (associate) in the corporate practice area.
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