This report explores the different types of companies and business structures, including small business, micro business, medium scale industries, large scale industries, sole trader business, partnership, limited liability business, public limited liability business, and cooperative. It explains how these companies work and their characteristics. The report also discusses different business structures like hierarchical structure, matrix structure, functional structure, and divisional structure. Additionally, it examines the impact of political, economic, social, technological, legal, and environmental factors on businesses.