At OHT, we believe that answers to the world’s most critical questions lie between disciplines. Accordingly, our researchers employ a range of expertise—from economics, epidemiology, disease modeling, and risk analysis to clinical and veterinary medicine, geographic information systems, and statistics—to conduct actionable, policy-oriented research. 

OHT has offices in Washington, D.C., and Bangalore, India, with researchers based in the Americas, Africa, and Asia. Our projects lead to policy recommendations and scientific studies published in leading journals. We are experienced in addressing country-specific and regional issues as well as global challenges. Our research is renowned for innovative approaches to design and analysis, and we communicate our work to diverse stakeholders.