Heidi Lehner, 1959, studied sinology in Zurich and Hong Kong. During her work in trade and industry for several years she completed the federal certificate of higher vocational education and training to become a director's assistant and underwent further training in the field of management of small and medium-sized businessnes at the University of St. Gallen. She is interested in questions concerning the future and since the early 1990s has dealt with complementary currencies.
Within the Sunflower Foundation Heidi Lehner is responsible for the complementary currency projects of the MoneyLab, but also engaged with the further platforms of the foundation. Since June 2013 she is the manager of the Sunflower Foundation.