In this research 505 valid questionnaires collected from 17 selected companies including nonprofit organizations, insurance companies, and manufacturing firms were used to gauge the normalized in-degree centrality of a friendship network. Social network analysis techniques were administered. The aim in this research was to present a model of how friendship networks and the personality characteristic of conscientiousness could intensify individual contextual performance of the employee. Theories and research investigations on different disciplines such as social and organizational science were integrated to develop the model. The results indicate that the interaction between conscientiousness and friendship networks explains a significant incremental amount of the variance in employee individual contextual performance.