THINK is a non-profit organisation with head office in Durban, South Africa. It was founded in 2013 to improve the quality of life of people affected by TB and HIV in South Africa and beyond. THINK International, with head office in Copenhagen, Denmark, takes this vision further by engaging partners internationally to make a difference in public health. THINK consists of highly qualified researchers, clinical teams and programme implementers who, together, have provided care to half a million people in South Africa. THINK has also contributed to improved treatment and WHO guidelines benefitting people worldwide. We have dedicated research sites and programme offices across South Africa and are funded by USAID, Global Fund, MSF, TB Alliance and Janssen, to mention a few.