This report provides an overview of business operations, exploring different organizational structures prevalent in both public and private sectors. It begins with an introduction to business operations and the impact of environmental factors, followed by an examination of various organization types, including sole proprietorships, partnerships, and public limited companies. The report further delves into the specifics of public sector organizations, such as public corporations and government companies, using examples from the UK. Additionally, it analyzes different business structures in the UK, including limited liability partnerships and sole traders. A significant portion of the report is dedicated to a PESTLE analysis of Mark and Spencer, evaluating the political, economic, social, technological, legal, and environmental factors influencing the company's operations. The report concludes with a list of references used for research.