As online trading continues to reshape the landscape of financial markets, the role of technological innovation becomes paramount in influencing investor satisfaction and fostering sustainability. This research presents a comprehensive case study that examines the intricate relationship between technological innovation, sustainable practices, and investor satisfaction within the context of AGEL Broking, a prominent player in the online brokerage industry. The study begins by reviewing the existing literature on the impact of technology on financial markets and investor behavior, emphasizing the growing importance of sustainable practices in contemporary financial services. It then transitions to a detailed analysis of AGEL Broking's technological innovations, exploring how the brokerage leverages cutting-edge technologies to enhance its online trading platform. Central to this investigation is the evaluation of AGEL Broking's commitment to sustainability, encompassing environmental, social, and governance (ESG) considerations. The case study scrutinizes the integration of sustainability principles into the technological infrastructure of the online trading platform and assesses how these practices resonate with investors seeking ethically aligned investment opportunities. To measure investor satisfaction, a combination of quantitative and qualitative methods is employed, including surveys, interviews, and analysis of trading data.