This study discusses the business development strategies of Bait al-Maal Wa at-Tamwil (BMT) As'adiyah Sengkang. It was conducted based on the designation of Bait al-Maal Wa at-Tamwil (BMT) As'adiyah as a pilot institution in the South Sulawesi Province. Bait al-Maal Wa at-Tamwil (BMT) As'adiyah has rapidly developed, allowing it to compete effectively with conventional financial institutions. The main objective of this research is to investigate the strategies employed by Bait al-Maal Wa at-Tamwil (BMT) As'adiyah in expanding its business. This research adopts a qualitative approach with sociological and phenomenological perspectives, utilizing primary and secondary data sources. Data collection methods include observation, interviews, and documentation. The collected data undergoes data reduction, data presentation, and conclusion drawing. The findings reveal that Bait al-Maal Wa at-Tamwil (BMT) As'adiyah Sengkang employs several effective strategies to develop its business. These strategies include: socializing with the community, collaborating with Sharia-based financial institutions, and guiding customers through religious studies. Additionally, enhancing the skills and capabilities of the management team contributes to gaining the community's trust in their collaboration. The success of Bait al-Maal Wa at-Tamwil (BMT) As'adiyah Sengkang in business development is attributed to its accountable and transparent financial management system. Effective cooperation between the board of directors and the management team plays a crucial role in the business development of BMT As'adiyah. The management team executes operations on the ground. At the same time, the board of directors monitors the implementation, creating a closely integrated and inseparable relationship that ensures the financial management aligns with Islamic Sharia concepts, thereby enhancing customer trust.