A Research Report Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Business Administration in Corporate Management (MBA-CM) of Mzumbe University.The study investigated factors influence performance of insurance company in Tanzania. The study employed both qualitative and quantitative research approaches in investigating the study problem. The study used descriptive study design on analysing the study problem. The targeted population was insurance companies in Tanzania. The consolidated report from TIRA from 2012 to 2018 was used together data and analysed using descriptive, correlation matrix as well as regression analysis. The study observed that insurance companies has been performing in terms of general insurance business and long term assurance business in a country. The study also found that size of insurance companies, leverage level, growth in written premium, and age of insurance companies, loss ratio, human resources competence and technological competence are the factors influence performance of insurance companies in Tanzania. The study has observed that size of the insurance companies, leverage, growth in written premium, age and human resources competence are positively significant factors contributing performance of insurance companies in Tanzania while loss ratio and technological competence positively insignificant contributors toward performance of insurance companies in Tanzania. The study found that there are needs to take policy measures to expand the provision of both general insurance business and long term assurance business in order to accommodate large percent of Tanzania population who are not accessing insurance services. The policy measures have to open more policy directive toward promoting and attracting more investors in insurance services particularly in rural areas. The study recommends that qualitative measures of performance has to be also looked in order to ensure whether the services provided in insurance industry in Tanzania observe quality assurance and customer satisfactions. Also the investments in insurance activities have to be policy centred in order to accommodate more Tanzanians accessing insurance services.