This study extends Social Identity Theory by examining the link between organizational identification (OI) and work engagement (WE) through enhanced job satisfaction (JS) and testing it in a non-US environment, which makes contribution to the literature. The study was conducted on a large sample (527) of Turkish blue and white-collar employees from business units of 15 independent companies from 10 different industry types and data was analyzed with Structural Equation Modelling. The results showed that organizational identification is positively related with work engagement. Job satisfaction did not moderate the relationship between OI and WE, but it mediated 54 % of the effect of OI and thus, confirmed the applicability of Social Identitiy Theory in a Turkish context. Results revealed that a sense of identification may be a precondition for work engagement; but it is the mediating effect of job satisfaction, which enhances this relationship.