Leo is co-founder and CEO of Brainforest, the venture studio for forest and climate that he started out of WWF. Before serving at WWF and its Corporate Relations team, Leo was co-founder of Viaduct Ventures, an impact investing initiative. Previously he served as CFO of Impact Hub Zürich. Earlier in his 10+ years in sustainability, Leo served as Director at the Impact Pledge Foundation; as Associate Director at Impact Economy Ltd; as an Analyst in the Family Office Services & Advisory team of a Swiss private bank and as Corporate Social Responsibility Manager at the Mammut Sports Group Ltd.