Marble Raises €6.5 Million to Automate Fraud and AML Compliance

Paris-based Marble has raised €6.5 million to automate fraud prevention and anti-money-laundering (AML) compliance, the startup announced. The company builds a no-code, open-source platform that lets financial institutions assemble, test and deploy fraud and AML workflows without writing custom software.

The €6.5 million round anchors Marble's bid to become the standard infrastructure layer for financial crime compliance in Europe. The company's core pitch is straightforward: compliance teams at banks, fintechs and payment companies currently stitch together manual reviews, spreadsheets and bespoke code to detect fraud and money laundering. Marble replaces that patchwork with a visual, no-code environment.

The open-source component matters. By publishing its core platform openly, Marble invites security teams, engineers and compliance officers to inspect, audit and extend the tooling directly. For regulated financial businesses, transparency is not a nice-to-have. AML rules in the EU and beyond demand that institutions be able to explain, document and defend every automated decision they make. An open-source stack gives auditors and internal risk teams full visibility into how detection logic behaves — a sharp contrast with closed, black-box vendor products.

The no-code angle targets a persistent bottleneck in financial services. Fraud and AML analysts understand the risk patterns they need to catch, but translating those patterns into production-grade detection rules usually requires engineering time that compliance departments rarely have. Marble's platform flips that dynamic. Analysts build and iterate on fraud rules and AML scenarios themselves, deploying changes without waiting on developer queues. That shortens the distance between a new fraud typology appearing in the market and a defense being live in production.

The funding arrives amid mounting pressure on European financial institutions. Regulators continue to tighten expectations around transaction monitoring, sanctions screening and customer due diligence, while fraud volumes — from payment scams to account takeovers — keep climbing. At the same time, compliance costs have become a structural burden, particularly for fintechs and neobanks that must meet the same regulatory standards as incumbent banks but with smaller teams.

Marble's combination of no-code tooling and open-source distribution positions it against two incumbent categories at once: legacy compliance software suites, which are expensive and slow to customize, and in-house builds, which drain engineering resources and are hard to maintain. The Paris startup's wager is that compliance teams will choose an open platform they can control over either alternative.

The €6.5 million gives Marble runway to expand that platform, grow its team and deepen its footprint among European financial institutions. The open-source model also creates a natural adoption funnel: developers and compliance engineers can trial the platform at no cost inside their organizations, with commercial engagement following once the tooling is embedded in production workflows.

For the broader regtech sector, the round signals where investor attention is heading. Compliance automation is no longer a niche within fintech infrastructure — it is a core category. Startups that can cut the cost of fighting financial crime while keeping detection logic transparent and auditable are raising real money to do it.

Marble's next test is execution. The company must convert its open-source community and no-code promise into contracted customers across Europe's banks and fintechs — and prove that compliance teams will standardize on a platform born in Paris rather than build or buy the old way.