PARIS, Oct. 6, 2026 | Fleuret AI, a Paris-based startup that builds AI agents to automate penetration testing, announced a €4 million pre-seed round on Oct. 5, led by RAISE Ventures, according to Tech.eu. The company says its agents continuously test a customer's systems for weaknesses, instead of the one-off audits that penetration tests usually are. Some outlets list the round in dollars as $4 million, but European coverage reports it in euros.
Who Backed Fleuret AI
RAISE Ventures led the round. Tech.eu lists Auriga Cyber Ventures, Wind, Better Angle and cybersecurity business angels as other investors. Yanis Grigy is CEO and Augustin Ponsin is CTO. Dealroom says the round ranks around the 93rd percentile of French seed-stage deals historically.
What Fleuret AI's Agents Do
Penetration testing means simulating attacks on a company's systems to find weaknesses before real attackers do. Fleuret AI's agents "simulate attacks on clients' systems to identify vulnerabilities hackers might exploit," per Tech Funding News. Tech.eu reports the platform uses two agents, named Emile and Champollion, which map exposed systems, find vulnerabilities, show they can be exploited, support fixes and check that fixes work.
The agents run on Scaleway, a French cloud provider, and Tech.eu says the company is positioning its European hosting as a sovereignty advantage. Dealroom notes that penetration testing has traditionally been "slow and expensive manual work," and that demand for faster, cheaper security testing is rising as attack surfaces grow. Tech.eu says the target market is European companies of all sizes that lack the resources for regular pentesting.
How Fleuret AI Plans to Use the Money
The company says it will hire AI specialists, software developers and offensive security experts, and speed up its platform for enterprise environments. The reporting reviewed does not name customers, give a launch date or say how many companies are using the product.
What This Means for Security Teams
Pentesting is usually done once or twice a year because of cost. A tool that tests continuously, if it works as described, would change how often companies find problems. That depends on accuracy and safety, since the agents actually try to exploit systems, and the company has not published results in the coverage reviewed. Buyers should ask for proof-of-concept evidence for each finding and for limits on what the agents are allowed to touch. Fleuret AI joins a security market where AI agent tools are attracting early-stage money, as we covered with Reco's $55M raise.
Frequently Asked Questions
How much did Fleuret AI raise?
Fleuret AI raised a €4 million pre-seed round led by RAISE Ventures, according to Tech.eu. Auriga Cyber Ventures, Wind, Better Angle and cybersecurity angels also invested.
What does Fleuret AI do?
It builds AI agents that automate penetration testing, simulating attacks to find exploitable vulnerabilities and supporting fixes. The company says it tests continuously, not in one-off audits.
Where is Fleuret AI based?
The startup is based in Paris, France, and runs its agents on Scaleway, a French cloud provider.