The present study was designed to examine the relationship between emotional intelligence's dimensions of employees working in service companies located in Penang and their organizational citizenship behaviors as perceived by their current supervisors in organization and to examine whether job control moderates the relationship between emotional intelligence's dimensions and organizational citizenship behavior's dimensions. Hypotheses were tested with 104 respondents received from 2 organizations. Results indicated that the appraisal, expression, and regulation of emotions in oneself is the most important dimension for all OCB's dimension except for conscientiousness, it was found that the appraisal, expression, and regulation of emotions in others is the most important dimension. Also, it was found that job control only moderated the relationship between emotional intelligence's dimensions and helping behavior dimension. Implications and limitations are also discussed and recommendations are provided for future research.