Organizations face significant challenges affecting their performance, especially as they operate in an unstable environment. This study aims to investigate the effect of market orientation on organization‘s performance, through a survey covering Syriatel and MTN Centers in Tartous Governorate. This study's data have been collected through a questionnaire designed to measure market orientation and environmental variables. The SPSS program is used for obtaining results. This research shows a positive relationship between market orientation and environmental variables and the organization’s performance in general. The value of the correlation coefficient between the independent variables and the dependent variables is 73%, and the coefficient of determination is 53.2% when the degree of confidence is 95%. This study also shows that technological turbulence, as a component of environmental variables, has a negative effect on organization‘s performance, whereas both intelligence generation and market troubles have a positive effect on organization‘s performance.