Hannah Kettler is an economist and senior program officer on the Global Health Advocacy team at the Bill and Melinda Gates Foundation. She is responsible for a portfolio of grants and projects that aim to secure adequate financing and a supportive policy environment for global health product innovation and introduction. Given the important role that for-profit companies in both the north and south play in product development, much of her work is focused on reducing risks, and designing of financial incentives and business models to encourage greater private sector company engagement. Prior to joining the Gates Foundation in March 2003, Hannah led a two year Rockefeller Foundation funded project titled “Biotechnology and Global Health” at the Institute for Global Health at the University of California San Francisco. The recommendations and evidence base created in this project motivated BIO and the Bill and Melinda Gates Foundation to establish BIO Ventures for Global Health in 2004.