This report, prepared for a business analysis role, provides a comprehensive overview of different business types and organizational structures. It begins by defining and illustrating micro, small, medium, and large business entities, detailing their characteristics and examples. The report then explores various business ownership structures, including sole proprietorships, partnerships, limited liability businesses, public limited liability businesses, and cooperatives, outlining their definitions, characteristics, and examples. Furthermore, the report examines different organizational structures, explaining how these structures influence business productivity. The report uses J Sainsbury Plc as a case study, applying a PESTEL analysis to identify external factors impacting the organization, such as political, economic, social, technological, environmental, and legal factors. The report concludes by summarizing the key findings and implications for business operations and strategy.