Abstract This study focused on the Effectiveness of private stakeholders in competition towards nation growth and development in Moshi Municipal. The study used mixed research design, cross sectional survey design because it provided opportunity to collect data from different type of participants as well as measuring different variables in the population of interest at a single point of time and Case study was used in this study because is a very popular form of qualitative analysis and involves a careful and complete observation of a social unit. The main objective of the study was to examine the effectiveness of private stakeholders in competition towards nation growth and development in Tanzania. The research methodology was designed to collect data from the 100 respondents where by different tools was used including the questionnaires, interviews and documentary. The collected data from the study was statistically analyzed in the descriptive analysis by the help of Microsoft excel and Statistical Package for social science. The findings revealed that effectiveness of stakeholders in competition includes the following, stimulate globalization, Develop and maintain infrastructures and services, Promote and expand existing businesses as well as Building better business enabling environments and Address inefficiency in the local economy.