This research examines the influence of employee engagement on business performance. Objectives are: (1) to assess the impact of engagement initiatives on productivity, (2) to analyze the relationship between engagement and employee retention, and (3) to identify best practices for enhancing engagement. A survey design is chosen to collect data from a large number of respondents. Using Taro Yamane's formula, the sample size is 340, ensuring comprehensive data collection. The study focuses on the service sector in Lagos, Nigeria, where employee engagement is crucial. The reliability coefficient score is 0.87, indicating high consistency. Findings show that high levels of employee engagement significantly enhance business performance by boosting productivity, reducing turnover, and improving morale. Recommendations include implementing comprehensive engagement programs and regularly assessing and addressing employee feedback to maintain high engagement levels and drive business performance.