Purposes: The primary objective of this conducted research is to investigate and propose strategies for improving software testing practices in Tanzanian software development companies. Specifically, the study identify the current state of software testing practices, understand challenges faced by software development companies in Tanzania, propose effective solutions, and evaluate their impact. Methodology: A mixed-methods approach employed to achieve the research objectives. Qualitative and quantitative data collection methods, including surveys, interviews, observations, documentation analysis, and experimentation, utilized to gather comprehensive insights into software testing practices. Purposive sampling employed to select diverse software development companies across different regions in Tanzania. Thematic analysis and statistical analysis applied to analyze qualitative and quantitative data, respectively, ensuring a robust examination of software testing practices. Findings: The research findings reveal the prevailing software testing practices in Tanzanian software development companies. Challenges such as resource constraints, inadequate test coverage, and limited collaboration between developers and testers are identified. Additionally, the study identifies best practices and proposes context-specific solutions to enhance software testing practices in Tanzanian companies. Statistical analysis provides quantitative insights into the effectiveness of proposed solutions. Unique Contribution to Theory, Practices and Policy: The study contributes to bridging the gap between academic research and industrial practices in software testing. Through addressing the unique challenges and opportunities in the Tanzanian context, the research provides actionable recommendations for improving software testing practices. The findings underscore the importance of tailored strategies and collaboration between academia and industry to enhance software quality and reliability in Tanzanian software development companies.