The International Center for Research on Women (ICRW) is a non-profit organization with offices in Washington, D.C., United States, New Delhi, Ranchi, and Jamtara, India, Nairobi, Kenya, and Kampala, Uganda.

ICRW’s work centers on four issue areas: economic opportunity and security, health and reproductive rights, social norms and power dynamics, and climate action.

The organization’s research identifies women's contributions to their communities and the barriers – like HIV, violence, and lack of education – that prevent them from being economically stable and able to fully participate in society.

Warner was most recently the founding CEO for WREN, a nonprofit network advancing the health, economic well-being, and rights of South Carolina’s women, girls, and their families, for eight years.

Warner has conducted research on violence against women and girls in the West African nation of Liberia in collaboration with the International Rescue Committee, as well as built support for humanitarian relief and development programs around the world through CARE USA.