The news
Marble, a Paris-based maker of open-source AML and fraud detection software, announced on September 29, 2026 that it raised €6.5 million in a Series A round led by Smartfin. The company sells to banks and fintechs that must police money laundering.
ADNEXUS joined as a new investor, and existing backers Passion Capital, 42Capital and Hexa increased their support, according to Marble's announcement. The round brings Marble's total funding to €9 million. Marble did not disclose its valuation.
Under anti-money laundering (AML) rules, financial institutions must monitor transactions, screen customers and report suspicious activity. Marble's platform covers transaction monitoring, screening and case investigations. Its core code is published on GitHub, and customers can run it entirely on their own infrastructure so their data stays in-house, the company said. The project's GitHub page describes a free self-hosted version and a licensed enterprise version that can run self-hosted or as a cloud service.
Marble says more than 100 institutions in over 25 countries run the software in production. About 70% of its customers are outside France, and about 70% chose Marble to replace an existing system, according to The Next Web and FinTech Global. The company is targeting more than €5 million in annual recurring revenue (ARR), the yearly value of its subscriptions, by 2027.
Marble said it will use the funding to build AI into analysts' daily work, including alert triage, case investigation and drafting suspicious activity reports. It also plans faster on-premise deployment and AI agents that can only reach data they are permitted to see. "Compliance teams shouldn't have to choose between staying compliant and moving fast," CEO and co-founder Arnaud Schwartz said, as reported by The Next Web.
Schwartz and Pascal Delange, both former Shine executives, founded Marble in 2021, according to FinTech Global. The company's GitHub page pitches it as an alternative to established vendors ComplyAdvantage, Actimize and Fiserv. Customer case studies on Marble's website include Treezor, Pixpay, Gemba and Kulipa.
The numbers
- Series A size
- €6.5 million
- Total funding to date
- €9 million
- Institutions running Marble in production (company figure)
- More than 100
- Countries (company figure)
- More than 25
- Customers outside France (per The Next Web)
- About 70%
- ARR target for 2027 (company target)
- More than €5 million
Why CEOs should care
For chief compliance officers and heads of financial crime, Marble's pitch is control. Because the code is open and the platform can run on your own servers, your team can inspect how detection rules work and keep customer data in-house. Before a switch, ask how Marble's detection performance compares with your current system on your own historical alerts, what the enterprise license adds beyond the free version, and who supports the software if something breaks during a regulatory review.
CFOs and procurement teams should look closely at the business model. Open-source software shifts some costs from license fees to your own hosting and engineering time. Ask for a full cost comparison that includes infrastructure, staff and the enterprise license. Marble is also small, with €9 million raised to date, so ask about its financial runway, escrow or exit plans, and what happens to your deployment if the company is acquired.
CISOs and model-risk teams should examine the AI plans. Marble says it will add AI agents to triage alerts and draft suspicious activity reports, with access limited by permissions. Compliance decisions usually need to be explainable to auditors and regulators, so ask how AI recommendations are logged, whether a human signs off on every filing, and how rule changes are recorded for auditors.
The bigger picture
The round reflects a wider push to automate financial crime compliance, which Smartfin partner Saumitra Dubey said has moved from niche to inevitable, as reported by The Next Web. Marble is betting that a self-hosted, inspectable product with AI features can win replacement deals against established vendors, and its reported 70% replacement rate suggests some institutions are willing to switch. With €9 million raised in total, Marble is still small, so execution and support capacity will matter as much as the technology.
What’s next
Watch whether Marble meets its target of more than €5 million in ARR by 2027, how quickly it ships the AI triage and report-drafting features, and whether larger banks, not only fintechs, adopt the platform. Its handling of audit trails for AI-assisted decisions will be a key test with regulators.
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