Djoko Susanto is the founder of PT Sumber Alfaria Trijaya Tbk, which operates the retail business Alfamart. With over 20,000 stores across Indonesia and nearly 2,000 stores in the Philippines, Alfamart is one of the largest retail chains in the region. In addition to Alfamart, Susanto is also the founder of other brands such as Alfa Express, Alfa Midi, Lawson, and Dan Dan. Furthermore, he is the founder of Universitas Bunda Mulia and Sekolah Bunda Mulia. Susanto is also ranked among the top 50 richest individuals in Indonesia by Forbes.