Founder/Chief Executive Office of Alterra Impact Finance LLC, an impact investment firm in Zurich, focusing on sustainable European companies. He is also President of the Alterra Foundation, a Swiss foundation, supporting transformation initiatives related to a more human-centered economy.
He has had leading roles for 25 years in social impact enterprises, financial management, philanthropy and investments. Pietzner served as Chief Financial Officer on the Executive Board at the Goetheanum, General Anthroposophical Society, Switzerland, founded by Rudolf Steiner, with affiliates in over 90 countries and approx. 8,000 related institutions in education, biodynamic agriculture, medicine, business & banking.
Pietzner serves as Trustee/Advisory Board on a number of foundations in the USA and Europe. He is a Board member of Mind & Life International, Switzerland, Integrative Care Science Center, Sweden and the Global Exchange for Social Investment (London).