In the current dynamic business world, organizations are always in searching differentrnstrategy to enhance their organizational performance and outsourcing becomes one of thernwidely embraced business strategies. However, in spite of the increasing trend in outsourcingrnarrangements, there are inadequate literature underpinnings on how outsourcing non-corernbusiness activities affect organization performance in different sector and the same is true inrnECX. In order to bridge that gap this research sought to study the effects of outsourcing noncorernbusiness activities on organization performance in ECX. The researcher usedrndescriptive and inferential research design method in carrying out his study. The studyrntargeted a population of 682 staff from 11 departments. The researcher used stratifiedrnsampling method to pick sample respondents. Data was collected from primary sourcesrnthrough survey method by use of questionnaires and interview of the top level management.rnThe data was quantitatively analyzed based on research objectives by using of statisticalrnpackage for social sciences (SPSS) version 20 software. Both correlation and regressionrnanalysis were done. The study findings revealed that, though all of the dimensions ofrnoutsourcing non-core business practices have statistically significant positive relationshiprnwith organizational performance, service quality and communication was found to have nornstatistically significant predictive power on organizational performance of ECX, while thernremaining two dimension, cost reduction and employee commitment, have found to have arnstatistically significant predictive power on organizational performance of ECX. Based onrnthe study findings, the researcher recommended that: ECX should be more strict in followingrnthe deployment of committed outsource staff by designing competency framework which canrnensure employees commitment and that can be strictly followed and meet by the outsourcerncompany in deploying employees which provide the outsourced noncore business activity ofrnthe Exchange, and ECX should not outsource an activity until they have confirmed that thernservice provider is capable of handling the activity with minimum reasonable cost in the wayrnthat can meet cost reduction objective of outsourcing