Paris-based Marble, which builds infrastructure for real-time fraud detection and anti-money laundering and counter-terrorist financing (AML/CFT) programs, has reportedly closed a €6.5 million funding round.
The raise would add fuel to a company that has spent the past several years trying to give banks, fintechs, and crypto platforms more control over how they detect suspicious activity and investigate alerts.
Marble’s product is a decision engine rather than a closed, black-box scoring service.
Institutions can send it transactions, logins, account changes, and other events, then design their own detection scenarios through a no-code rule builder.
Those rules can run in real time, so a payment can be blocked, delayed, or flagged before it settles.
The same platform also covers customer and company screening against sanctions, politically exposed person lists, and adverse media, plus ongoing monitoring as those lists change.
Case management tools sit on top of the alerts so analysts can review context, apply internal procedures, and produce audit-ready records.
That combination matters because many financial institutions still split fraud and AML work across separate vendors, spreadsheets, and engineering tickets. Rule changes often wait on scarce developers.
Investigations pile up.
Regulators, meanwhile, expect faster response, clearer audit trails, and systems that can be explained rather than merely trusted.
Marble’s pitch is that compliance and risk teams should be able to adapt scenarios themselves, test them, measure false positives, and iterate without a long engineering cycle.
The company also offers unusual deployment flexibility.
Marble can run as software-as-a-service or be self-hosted, a point that has become more important as European and other regulators tighten expectations around operational resilience, data location, and vendor lock-in.
An open-source edition has become a notable acquisition channel, helping prospective customers inspect the engine, run pilots, and then move to a supported commercial deployment.
Founded in 2022 and commercially launched the following year,
Marble has grown from a detection-focused tool into a broader fraud and compliance stack that now includes investigation workflows and AI assistance for routine casework.
Public materials describe customers across banks, fintechs, and crypto venues in multiple regions.
The reported new capital would likely go toward product expansion, hiring, and supporting institutions that must prepare for tighter European AML rules and higher transaction volumes.
If confirmed, a €6.5 million round would be a modest but meaningful step for a specialized infrastructure vendor rather than a consumer fintech brand.
The market for transaction monitoring and financial-crime software is crowded, and larger incumbents already sell screening, monitoring, and case tools.
Marble’s differentiation remains the combination of configurable rules, real-time decisions, investigation workflow, and the option to keep the stack under the institution’s own control.
The company has not, at the time of writing, published a detailed press release confirming investors, valuation, or exact use of proceeds.
Until an official announcement appears, the figure should be treated as reported rather than independently verified. Still, the underlying product direction is clear: give risk and compliance teams infrastructure they can own, change, and audit as threats and regulations move.