This report provides a comprehensive analysis of various company types, including micro, small, medium, and large businesses, examining their definitions, characteristics, and examples. It also explores different company structures such as sole proprietorships, partnerships, limited liability companies, public limited companies, and cooperatives, detailing their unique features and operational aspects. Furthermore, the report discusses different organizational structures like hierarchical, functional, horizontal, divisional, matrix, and team-based structures, and how these structures impact business productivity, using Unilever as an example. Finally, the report analyzes the external factors affecting business performance using the PESTLE framework, covering political, economic, social, technological, and legal aspects, and illustrating how these factors influence companies like Unilever.