Two doctors are using data analysis and predictive algorithms to stretch healthcare resources in South Africa and help millions of people live with HIV. Dr. John Sargent and Dr. Ernest Darkoh co-founded BroadReach in 2003 to make the healthcare system more efficient and treat more patients. In 2010, the two developed Vantage, a data analysis platform and recommendation engine that runs on Microsoft Azure. The initial idea was to use the platform to manage and improve the public-private partnerships that support many healthcare services in Africa. The two realized that the analytic work could also improve access to healthcare in countries where there are many more people than doctors.