This essay discusses the importance of PESTLE, SWOT and Porter’s Five Forces Analysis in competitive strategy. It explains how PESTLE analysis helps in analyzing the political, economic, social, technological, legal and environmental factors of a target market. It also explains how Porter’s Five Forces Analysis helps in analyzing the power of existing competitors, suppliers, buyers, substitutes and new entrants. Finally, it explains how SWOT analysis helps in understanding the strengths, weaknesses, opportunities and threats of an organization.