This report delves into the intricacies of the business environment, exploring diverse organizational structures and their functions. It categorizes organizations into profit-making, non-profit, and non-governmental entities, providing examples and highlighting their operational characteristics. The report further examines the size and scope of organizations, differentiating between micro, small, medium, and large enterprises, along with their market shares and capital requirements. It also analyzes various organizational structures, including functional, divisional, and matrix structures, and their suitability for different business objectives. The second part of the report presents a case study on the UK supermarket sector, specifically conducting a PESTLE analysis of Tesco PLC, considering political, economic, social, technological, legal, and environmental factors impacting the company. The analysis includes the impact of Brexit, economic growth, and technological advancements on Tesco's operations, providing a comprehensive overview of the business and its environment.