This report provides an in-depth understanding of different types of companies and how they operate. It explores the characteristics of micro, small, medium, and large businesses, along with their legal structures. The report also discusses the impact of external factors such as politics, economy, society, technology, and environment on businesses. Additionally, it provides insights into organisational structures and how the business environment affects productivity and efficiency. The report is based on a comprehensive analysis of various sources and examples from real-world companies.