Peter Ptashko FRSA is a prominent British social entrepreneur, sustainability consultant, change leader, and enterprise educator with over 20 years of experience in the global impact sector. He is best known as the Founder and CEO of Cambio: House of Social Change, a leading international sustainability and ESG consultancy established in 2019. Throughout his career, Ptashko has supported nearly 300 social enterprises and impact ventures across more than 60 countries.