Guided by Vision, Driven by Collaboration

Our leadership brings together decades of expertise in research and public health, working in synergy to advance scientific excellence in Liberia. We believe that true progress is forged through collective intelligence and shared purpose.

Our Leadership Team

Wahdae-Mai Harmon-Gray

Executive Director

Joseph Sieka

Research Director

Dale Okai

Finance Officer

Antionette H. Wright

Project Manager

Lisa Jesslyn Williams

Research and M&E Coordinator

Debbie Dennis

Procurement Officer

Our Culture of Collaborative Research

At COSARL, we foster an environment where local expertise and international standards meet to drive health breakthroughs in Liberia. Our team is united by values of academic integrity, mutual respect, and a shared commitment to building a resilient health research ecosystem.