This report provides an overview of different types of companies, including micro, small, medium, and large businesses, and examines their functions based on liability, size, and control. It discusses various business structures, from sole proprietorships to cooperatives and limited liability partnerships, highlighting their advantages and disadvantages. The report also identifies different organizational structures such as functional, divisional, team-based, flat, matrix, and circular structures, explaining how these structures affect business productivity. Furthermore, it analyzes external factors impacting business performance using the PESTLE framework, covering political, economic, social, technological, legal, and environmental aspects. The report concludes by emphasizing the importance of selecting the appropriate business structure based on operational features and size, and acknowledges the impact of communication processes and external factors on business success. Desklib provides solved assignments for students.