This report examines the strategic information systems (SIS) of Macquarie Group Limited, a global financial services company. It begins by analyzing the current organizational structure, highlighting its hierarchical nature and the roles of key personnel. The report then delves into operational issues, such as data acquisition challenges and communication gaps. It explores the structure acquisition method, including a flowchart of the sales technique and control issues within the organization. The second part of the report focuses on the change and adoption of accounting software, leadership factors, and competitive advantages. It also identifies current gaps in the system and offers recommendations for improvement. The report emphasizes the importance of strategic information systems in securing, organizing, and accessing data to empower business activities and enhance operational efficiency. The study provides insights into Macquarie Group Limited's current state and suggests strategies for optimizing its SIS.