In a significant stride towards bolstering the fight against financial crime, Resistant AI announced a $25 million Series B funding round on October 13, 2025. Led by DTCP Growth, this round saw strong participation from existing investors including Experian, Google Ventures (GV), and Notion Capital, all of whom are reinforcing their commitment to the company.
The Prague-based firm, which recently reached breakeven status, plans to allocate these funds to further establish itself as a leading AI powerhouse in the European market. The funds will support the enhancement of its document fraud detection and transaction monitoring services, and facilitate entry into new territories and partnerships. Additionally, plans are in place to expand its threat intelligence capabilities.
As the landscape of the anti-fraud and regulatory technology (regtech) market evolves, it is increasingly being shaped by adaptive AI solutions. However, certain limitations persist, particularly among large language model-based agents that often struggle with the complex quantitative risk analyses essential for effective fraud prevention. These agents frequently exhibit a systemic hallucination rate between 10-30%, complicating their reliability against adversarial threats.
Resistant AI aims to empower fraud, risk, and compliance teams inundated with challenges posed by the rise of technologically savvy fraudsters. "Our machine learning models are specifically designed to detect fraud across documents, transactions, and behaviors, leveraging signals from the entire risk management tech stack," stated Martin Rehak, CEO and Founder of Resistant AI. His assertion underlines the firm’s unique offering that enhances precision and contextual decision-making in identifying sophisticated fraud schemes, including real-time payment fraud and sophisticated money laundering operations.
The urgency for advanced fraud detection is underscored by alarming trends emerging in the financial crime sector. 35% of businesses reported experiencing fraud related to generative AI, as highlighted by recent research from Resistant AI's Threat Intelligence team. The company reports an alarming rise in the Fraud-as-a-Service market, which currently boasts over 160,000 verified accounts available for illicit activities. These scams have cost economies around the globe approximately one trillion dollars.
With regulators worldwide looking to enforce stricter anti-fraud measures, the demand for innovative detection technologies has surged. Since its Series A funding, Resistant AI has recorded a tenfold increase in Annual Recurring Revenue and quadrupled its customer base. Notably, the company has become the leading solution in AI-driven document fraud detection, having verified over 150 million documents and analyzed transactions for fraud and anti-money laundering at an astounding rate of 100 times growth.
Rehak emphasized the transformative nature of the financial crime landscape, noting, "The deployment of large language models and AI agents in risk prevention has fundamentally shifted the battlefield, as fraudsters weaponize generative AI. Our models equip financial institutions with the tools necessary to enable their human and AI counterparts in combating these sophisticated threats efficiently."
Michael Rager, Partner at DTCP Growth, remarked on the company's future potential, asserting, "Resistant AI symbolizes the future of financial crime prevention. Their multi-model approach to fraud detection signifies a paradigm shift for financial institutions in protecting themselves and their clients. We are excited to collaborate with Martin and the Resistant AI team as they embark on this next growth stage."
Resistant AI continues to safeguard a growing array of global financial institutions, fintechs, and enterprises, expanding its distinguished customer portfolio, which includes major players like Dun & Bradstreet, Payoneer, and AXA. With a team of over 100, the company operates from offices in Prague, London, and New York, solidifying its role as a leader in the industry.
As the company enhances its products and seeks new markets, the outlook remains promising. Resistant AI’s focus on innovative solutions in fraud prevention aligns seamlessly with the increasing urgency within the financial sector to protect against evolving threats. Their advanced AI-driven capabilities position them well as they aim to stay ahead in a rapidly changing landscape of financial crime.