The interaction can be built by providing more unique or different services to customer, customer service that the company has built should be on communicate to customers to let customers know about their whereabouts. With that the company also can know what the customer needs is and can got some feedback from the customer. Thus, the company can create an service innovation to still up the competition with their competitor. The purpose of this research is to know whether service innovation have impact towards customer satisfaction at Sukses mentari satelindo Medan. Indicator of service innovation is service concept, client interface, service delivery system, technological options. Indicator of customer satisfaction is service reature, customer emotion, attribute for service success or failure. Research design used in this research is descriptive research design and correlational research design. Research methods which used are descriptive statistic analysis, validity and reliability test, normality test, coefficient correlation, coefficient of determinant, simple linear regression analysis and Z testing. With population and sample of 50 people. The result of this research is that there is impact service innovation to customer satisfaction at PT.Sukses mentari satelindo Medan.Ttcount> Ttable or 5.823> 2.011 and significant obtained 0.000 <0.05, means that Service Innovation has an impact on customer satisfaction at PT. Sukses Mentari Satelindo Medan with coefficient correlation in 0.643. R Square value of 0,414 this means that 41.4% of the variation of service innovation can be explained by variations of customer satisfaction. While the remaining 58,6% are explained by other variables not examined in this study, maybe these factors are price, quality service, brand image and so on. When the service innovation is increase, then the customer satisfaction will be increase with result that the company provide good service to customer. Conclusion in the study that service innovation impact to customer satisfaction at PT Sukses mentari satelindo Medan