Sébastien Guillo

CEO - Blunomy

Sébastien is Blunomy’s CEO – based in Paris – and leads our development with Financial Institutions (banks, asset managers/owners) globally.
Sébastien has more than 15 years of experience in the financial sector. He started his career as a strategy consultant with Oliver Wyman in Europe. From 2010 to 2022, he worked at HSBC, where he held multiple leadership roles in Europe: CFO of the Commercial Banking business, Head of Strategy for Continental Europe and Head of Corporate Coverage in France, supporting its clients with financing, international growth, and sustainable finance strategies.
Sébastien brings deep insights in transition finance and on the role Financial Institutions can play in supporting their clients in their transition journey – managing climate & nature risks and seizing business opportunities.
Sébastien graduated from ESSEC Business School (Grande École). He speaks fluent French and English and is advanced in German.