Green Ambassadors: Europe 2025

Marc Walter


Wenger Vieli Ltd

Switzerland

Marc Walter

Marc Walter, head of Wenger Vieli Ltd’s ESG practice group, provides comprehensive sustainability advice across M&A, private equity, and venture capital transactions, with particular expertise in renewable energy, ESG, and sustainable mobility.

Walter co-heads the firm’s sustainability and ESG committee, overseeing its internal green initiatives. Externally, Walter serves as secretary of the board of Stiftung Umwelt Arena Schweiz, a leading centre focused on environmental and renewable energy issues, environmental education, and sustainable mobility in Switzerland.