This report analyzes the performance of three major UK gambling companies: Paddy Power Betfair Plc, William Hill Plc, and Ladbrokes Coral Group Plc. It utilizes financial and non-financial ratios to compare their profitability, liquidity, solvency, and operational efficiency. The report also explores the key stages of the capital investment decision-making process and the role of investment appraisal techniques, including Net Present Value (NPV), Internal Rate of Return (IRR), and Discounted Cash Flow (DCF), in evaluating investment opportunities. Through a comprehensive analysis, the report identifies Paddy Power Betfair Plc as the best-performing company and Ladbrokes Coral Group Plc as the least successful. The findings provide valuable insights into the UK gambling industry and the importance of sound financial management and investment appraisal in achieving sustainable growth.