Series C · Cybersecurity · Budapest, Hungary · Founded 2017 · 270–311 employees
SEON is a global leader in AI-powered fraud prevention and AML compliance, founded in Budapest in 2017 by Tamás Kádár and Bence Jendruszák after they experienced fraud attacks while building a cryptocurrency platform. The company has grown to serve over 5,000 businesses worldwide including Revolut, Nubank, Afterpay, and Spotify, preventing over $300 billion in fraud losses to date. SEON raised a record-breaking $80 million Series C in September 2025 led by Sixth Street Growth, bringing total funding to $187 million. The platform uses 900+ real-time data signals and explainable AI to detect fraud without impeding legitimate growth, combining fraud prevention with AML compliance in a single unified solution.