French cybersecurity startup Fleuret AI raises €4 million to automate penetration testing with AI agents

What happened

Fleuret AI, a Paris-based cybersecurity startup automating penetration testing with agentic (AI that carries out multi-step tasks rather than answering one question) AI, has closed a €4 million pre-Seed round to hire AI, software engineering, and offensive security talent and accelerate platform development. The round was led by RAISE Ventures, with participation from Auriga Cyber Ventures, Wind Capital, Better Angle, and leading business angels from the […] The post French cybersecurity startup Fleuret AI raises €4 million to automate penetration testing with AI agents appeared first on EU-Startups .

The platform is built to move penetration testing from a one-off audit to continuous security across five pillars: know the exposed systems, identify vulnerabilities, prove they can be exploited, help fix them, and verify they are fixed. It highlighted that under NIS2 in particular, a growing number of organisations have to demonstrate how robust their security is.

Founded in 2026 by Yanis Grigy (CEO) and Augustin Ponsin (CTO), Fleuret combines AI and offensive expertise to make pentesting accessible, continuous, and sovereign. According to the company, companies change their systems every day while security requirements keep rising.

However, penetration testing still relies largely on one-off audits, which include a snapshot of a system at a given moment, even though a new deployment a few days later can already have changed its attack surface. Fleuret claims to automate the pentester’s work with two AI agents, Emile and Champollion.