Klarna

Buy now, pay later. Four words that transformed the purchasing behavior of hundreds of millions of people worldwide. Klarna brought the concept of deferred payment into the digital era with an elegance that old consumer finance never had: no forms, no bureaucracy, no hidden rates — or at least that was the promise that drove user growth at an extraordinary pace. Founded in Stockholm by Sebastian Siemiatkowski, Niklas Adalberth, and Victor Jacobsson, Klarna built one of the world's most recognizable fintech brands, with 150 million global users and over 500,000 merchant partners. The buy now pay later model lets consumers purchase online and pay in installments — interest-free or at reduced rates — while merchants pay a commission to offer the option because it increases conversion rates and average order value. Klarna evolved from a payment tool into a full shopping app: product search, price comparison, cashback, promotional notifications. The integration between the discovery experience and the payment experience creates an engagement flywheel that extends well beyond a single purchase. Klarna's path has not been linear — the company went through a significant valuation reset during the 2022 downturn — but it demonstrated remarkable adaptability, cutting losses and working toward a public listing. With 114 million active consumers and 850,000 merchant partners, Klarna remains the global reference point for BNPL.