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

Paris-based cybersecurity startup Fleuret AI has secured €4 million in pre-Seed funding to automate penetration testing through AI agents. The round was led by RAISE Ventures and seen by Auriga Cyber Ventures, Wind Capital, Better Angle, and several business angels from the cybersecurity world. The funding will be used to hire AI, software engineering, and offensive security talent and accelerate platform development.

Fleuret AI, founded in 2026 by Yanis Grigy (CEO) and Augustin Ponsin (CTO), aims to make pentesting accessible, continuous, and sovereign by combining AI and offensive expertise. The platform automates penetration testing through two AI agents, Emile and Champollion, which map a company's environment, explore its applications, APIs and infrastructure, and attempt to exploit any identified vulnerabilities.

Every finding includes a proof of compromise demonstrating how it can be exploited, and the platform continues to monitor the attack surface for changes.

Beyond finding vulnerabilities, Fleuret AI is building tools to see them through to resolution, including prioritisation by exploitability, integration with existing engineering tools, automatic re-testing, and reports verifying a vulnerability's resolution. The company currently employs around ten people and has customers such as Brevo, Stoïk, and Yogosha. Fleuret AI's ambition is European, aiming to make offensive security accessible to all companies, regardless of size or budget.