Sebastián Duh is Co-Founder of Kintai, a Barcelona-based fintech platform providing alternative financing and working capital solutions to small and medium-sized enterprises across Spain.

Sebastián brings over 20 years of international business experience, including roles at Bradesco and CMS Europe, and completed a Program for Management Development at IESE Business School in Barcelona.

Sebastián co-built Kintai from within the Nuclio venture builder, leveraging open banking and data analytics to modernize SME credit access in a market where traditional lending remains slow and restrictive.

Under his co-founding leadership, Kintai progressed from a 250,000 euro pre-seed round in 2021 to a 10 million euro Series A in 2026 led by Barlon Capital, with participation from Prosegur, TQ Eurocredit, and the Institut Catala de Finances.

Kintai has channeled over 150 million euros in financing to approximately 1,000 businesses, advanced more than 150,000 invoices, and generated 4.5 million euros in revenue in 2025.