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SEBASTIAN SIEMIATKOWSKI

Founder at Klarna

ActiveFounder

Updated: Dec 18, 2025 ·

About

Sebastian Siemiatkowski is a founder at klarna.

Recent News & Mentions

Jul 1, 2022FundingKlarna - Venture Round Jun 1, 2021FundingKlarna - Venture Round Feb 1, 2021FundingKlarna - Venture Round Mar 1, 2014FundingKlarna - Venture Round Dec 1, 2011FundingKlarna - Series C May 1, 2010FundingKlarna - Series B Jan 1, 2005FundingKlarna - Seed

Experience

FounderFounderCurrent

Present - Present

Frequently Asked Questions

Who is Sebastian Siemiatkowski?

Sebastian Siemiatkowski is Founder at Klarna.

What companies has Sebastian Siemiatkowski founded?

Sebastian Siemiatkowski co-founded Klarna.