In developing countries, particularly South Asia, there is scarce research on corporate governance and sustainability reporting disclosure. This study considers several insightful theories, including Stakeholder Theory, Agency Theory, and the TOE Framework, to understand the relationships and drivers of sustainability reporting. The study examines Indonesian Islamic corporates using data from the ISSI (Indonesia Shariah Stock Index). We gathered annual reports and sustainability reports from the ISSI database for the year 2019. The study investigates how human governance (HG), Islamic corporate governance (ICG), and information technology usage (ITU) are related to sustainability reporting disclosure (SR). The findings showed that the sustainability reporting disclosure was significantly influenced by human governance and Islamic corporate governance with firm size and leverage. Furthermore, the research showed that profitability was not significantly related to sustainability reporting disclosure, that Islamic corporate governance had a significant negative influence on SR, and that IT usage was only significant when human governance was not present. Finally, the results showed that human governance is the main driver of sustainability reporting disclosure. Therefore, we conclude that human governance is the best predictor for sustainability reporting disclosure.