This study aims to assess the technical and financial performance of Misr Insurance Company after the merger of its property and casualty portfolio with both Al Sharq Insurance Company and the National Insurance Company as well as the inclusion of the reinsurance portfolio of the Egypt reinsurance Company. The Corporates P&C portfolios were merged on July 1, 2010, with their book values on June 30, 2007 to comply with the provisions of Law No. 118 of 2008, which required the separation of life and property insurance activities in Independent legal entities. The researcher set the time period from 2011 to 2020 to study and measure the technical and financial performance of Misr Insurance Company using data published in the annual book issued by the Financial regulatory Authority using factor analysis, multivariate analysis of variance, and multiple regression analysis analyse and measure the impact of different financial indicators representing the performance of company's insurance activity, volume of the business and its capital as independent variables on the rate of return on the company's assets as a dependent variable. The results showed that the merger of the portfolios of public business companies since 2010 has had a positive impact on the company's performance to increase the size of the company's assets and investments and the level of profitability and increase the capital base.