Sebastian Siemiatkowski

At-a-Glance

Co-founder and CEO of Klarna since 2005
Co-founded Klarna in 2005, pioneering the Buy Now Pay Later (BNPL) space
Led Klarna to a $31 billion valuation in 2021, becoming a billionaire
Holds a master's degree from the Stockholm School of Economics
Served on the Advisory Board of SSE Business Lab (2015-2019)
Faced criticism for publicly sharing dismissed employees' email addresses during 2022 layoffs

Biography

Sebastian Siemiatkowski is the co-founder and CEO of Klarna, a fintech company he established in 2005 with Niklas Adalberth and Victor Jacobsson. Klarna pioneered the Buy Now Pay Later (BNPL) space, with a mission to simplify online shopping and serve as a payments network that challenges traditional financial institutions.

Born in Sweden on October 3, 1981, Siemiatkowski's parents immigrated from Poland in the 1980s.