Melinda Gates, Co-founder of the Bill & Melinda Gates Foundation Michelle Obama, First Lady of the United States Hillary Clinton, United States Secretary of State Sheryl Sandberg, COO of Facebook Christine Lagarde, Managing Director of the International Monetary Fund Janet Napolitano, United States Secretary of Homeland Security Sonia Gandhi, President of the Indian National Congress party Indra Nooyi,[1] Chairperson and Chief Executive Officer of PepsiCo