While fraud is getting faster, compliance teams still aren't. Every year the regulatory bar goes up, and the tools criminals use get better, accelerated by their early adoption of AI. Yet most banks and fintechs still fight financial crime with the same headcount, the same manual reviews and the same rigid systems. Only a few teams can afford anything better.
Marble was built to change that. Today, the company announced a €6.5M Series A led by Smartfin, with participation from Adnexus, Passion Capital and 42Capital. That brings Marble's total funding to €9M.
From HX22 to 100+ institutions in production
Arnaud Schwartz and Pascal Delange started Marble inside our HX22 batch. They set out to build a real-time decision engine for fraud and anti-money laundering (AML) that compliance teams could run themselves.
In 2024 they made a call most of the industry would have avoided: they open-sourced the core. In a field built on black boxes, any team can now see exactly how every decision is made.
The bet paid off. Marble is now live at more than 100 banks and fintechs in over 25 countries.
AI where analysts need it, with a human signing off
This round goes into making Marble carry more of the workload, without taking judgment away from the people accountable for it.
- Investigations: when an alert needs a closer look, Marble assembles and pre-analyzes the case before an analyst opens it.
- Reports: it drafts the suspicious activity report (SAR or STR) in one click, and an analyst reviews it before filing.
- Rules and triage: from writing rules to sorting alerts, AI sits directly in the workflow. Analysts spend less time on repetitive review and more on real risk decisions.
A human stays accountable for every decision. In compliance, that's the point.
Your infrastructure, your rules
Compliance data sits in the most sensitive layers of a financial institution. So Marble deploys fully on-premise, on infrastructure the customer controls. It works with existing data as-is, without months of implementation. Its AI agents only ever touch the data they're allowed to see.
Compliance officers can also set and change their own detection logic without waiting for the next IT release. Every change stays traceable and ready for audit.
Why now
Marble has already shown that compliance AI works at scale, on the customer's own terms. This round is about bringing it to many more teams.
Our founder Amaury Sepulchre highlights: "Marble sits at a rare intersection of powerful market tailwinds and technological change. Compliance is becoming ubiquitous, fraud is exploding, and AI and open source are fundamentally reshaping what's possible. Having worked closely with some of Europe's most ambitious FinTechs, I've seen firsthand how fragmented and painful compliance tooling can be. Marble removes that friction at its core, with a radically more flexible and modern approach. We're proud to have backed Marble and its founders from day one."
We've been alongside Arnaud, Pascal and the team from the start. It's been a privilege to watch them build something open, rigorous and trusted by the institutions that need it most. Congratulations to the whole Marble team 💙
See how Marble works or book a demo.