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Sebastian Siemiatkowski

Klarna
Stockholm, Sweden
Sebastian Siemiatkowski co-founded Klarna in Stockholm in 2005 while still a student, creating the buy-now-pay-later model that would spread globally. Klarna became Europe's most valuable fintech, peaked at a $45.6 billion valuation, and then dropped to $6.7 billion during the 2022 downturn before rebounding toward a 2024 IPO on the New York Stock Exchange. Siemiatkowski is known for his media presence and aggressive product pivots toward AI-driven banking experiences.
Fintech / BNPL

About Klarna

Klarna is a global payments and shopping service offering buy-now-pay-later, instant financing, bank accounts, and AI-powered shopping tools to 150 million+ users and 500,000+ merchants.

About this listing

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