This report, submitted for the Business in Practice module (BMP3002), examines the different types of businesses, including micro, small, medium, and large enterprises, detailing their characteristics and providing UK-based examples. It then explores various business structures, such as sole traders, partnerships, limited liability businesses, public limited liability businesses, and cooperatives, outlining their respective features. The report further analyzes organizational structures, specifically functional and divisional structures, and their impact on business productivity. Finally, it evaluates the influence of external factors on business performance using a PESTLE analysis, with a focus on ASDA, considering political, economic, social, technological, legal, and environmental factors and how they affect the company. The report aims to provide a comprehensive understanding of business operations, structures, and external influences in the UK context.