Mariko McTier
Co-Founder & Co-CEO, Social Innovation Japan
Co-Founder mymizu

Mariko is an award-winning entrepreneur and consultant who finds creative ways to engage people in redesigning systems for a circular economy. She co-founded Social Innovation Japan and mymizu, a free water refill app that uses refilling as a hook for wider citizen action. She has worked extensively with global brands, governments, and startups to create systemic change for a more sustainable future. Mariko has served as a Council Member for the World Economic Forum's "Global Future Council on Japan" and as a guest advisor with the Japanese Ministry of Environment.

Mariko's work has earned multiple awards both in Japan and internationally such as Business Insider Japan's "Beyond Millennials" Award and the iF World Design Guide Social Impact Prize. She is a regular contributor on local and national radio, and her interviews have been featured in media such as Forbes, Nikkei, BBC and VOGUE.