Matthew J. Guercio~~Philip Coletto~~Georges Balit~~Hugo Kerbib
January 24, 2026
Willkie Advises Insight Partners on Lead Series B Investment in Filigran

1 min
AI-made summary
- Willkie advised Insight Partners in its lead investment in Filigran, a European cybertech firm, during a $35 million Series B financing round announced on October 28
- The funding, led by Insight Partners with participation from existing investors, will be used to support Filigran’s global expansion and further development of its cybersecurity solutions platform
- Filigran, based in Paris, develops open-source platforms OpenCTI and OpenBAS for proactive cyber threat anticipation.
Willkie advised Insight Partners in connection with its lead investment in European cybertech firm Filigran as part of a $35 million Series B financing round.
On October 28, Filigran announced the completion of its $35 million Series B fundraise led by Insight Partners, with participation from existing investors. The new funding will support Filigran’s global expansion and the development of its cybersecurity solutions platform.
Filigran, based in Paris, is focused on revolutionizing proactive cyber threat anticipation with its open-source platforms OpenCTI and OpenBAS.
Insight Partners is a global software investor partnering with high-growth technology, software, and Internet startup and ScaleUp companies.
The Willkie team was led by partners Matthew Guercio and Philip Coletto and included counsel Georges Balit and associate Hugo Kerbib.
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Matthew J. Guercio~~Philip Coletto~~Georges Balit~~Hugo Kerbib
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