Given its profound influence, organizational commitment is increasingly becoming a valued asset for most organizations. However, the mechanics of how to forge the right level of employee commitment to the organization is still not straightforward, more specifically among insurance firms in Kenya. Towards this endeavour the study was founded on the following objectives: to determine the effect of organizational commitment on employee performance for selected insurance companies in Eldoret town and to determine the moderating effect of employee training on the link between organizational commitment and employee performance. The study adopted an explanatory research design. A target population was drawn from 10 selected insurance firms in Eldoret and a census of 156 respondents was taken. To ensure validity and reliability, Cronbach’s alpha values were used; values> 0.7 was accepted. From the results predictors of employee commitment, affective commitment (β= 0.344, t= 3.724, P< 0.05) positive and significant effect on performance. In conclusion affective commitment positively influenced employee performance while training partially moderated the relationship between employee affective commitment and performance. The study therefore recommends that organizations use training programs to achieve effective employee affective commitment towards an end that is better performance. They need also to benchmark best practices. Lastly the study recommends that future research be informed by other theories other than SET.