This report provides a comprehensive overview of various business types, including micro, small, medium, and large enterprises, along with their characteristics and examples. It delves into the specifics of sole traders, partnerships, limited liability businesses, public limited liability businesses, and cooperatives. The report further explores different organizational structures, such as hierarchical, flat, and matrix structures, and analyzes their impact on business productivity. Additionally, it examines how external factors, particularly through a PESTLE analysis, affect business performance, using Tesco as a case study. The analysis covers political, economic, social, technological, legal, and environmental factors and their implications on the business.