Green Ambassadors: Europe 2026

Jason Marett


HFW

Switzerland

Jason Marett

Jason Marett at HFW is a leading authority on sustainable finance within the commodities space, acting for major agribusinesses, energy traders, and impact investors on transformative projects and transactions.

Alongside serving as a key contact for the negotiation of sustainability-linked and green loans, Marrett is also a particular expert on responsible sourcing and impact investment policies.

A notable industry thought leader, Marett spoke at the Geneva Sugar Conference on sustainability-linked lending for agribusinesses. Marett also plays a key role in the firm’s ESG engagement, serving as its internal sustainability ambassador and as its representative to Sustainable Finance Geneva.