Green Ambassadors: Europe 2026

Andreas Hösli


Kellerhals Carrard

Switzerland

Andreas Hösli

Andreas Hösli at Kellerhalds Carrard advises corporates, NGOs, and public sector bodies on corporate sustainability and climate responsibility matters, specialising in green claims, ESG due diligence, and sustainability reporting.

A key client is the Swiss Federal Office for the Environment, whom Hösli is advising on the development of its implementation guidance on climate-related commercial claims. The mandate supports the government in establishing standards to minimise corporate greenwashing.

Having finalised a PhD on directors’ duties and climate-related due diligence, Hösli remains a key academic thought leader as the developer and teacher of the sustainability law course at the University of Applied Sciences Northwestern Switzerland.