Drawing from signaling theory (Rynes, 1991) and social identity theory (Ashforth & Mael, 1989), this investigation examines how a company´s CSR communication, especially the liking of the company’s CSR advertisements, their message credibility, as well as their cause-company-fit, influences employees´ evaluation of the perceived organizational CSR engagement, and how the evaluation of the perceived organizational CSR engagement relates to employees´ job satisfaction, organizational pride, and word-of-mouth. An experimental study was carried out with the employees (n = 432) of a large European energy provider in order to test the model assumptions. To illustrate comprehensively the CSR engagement of the company four collages were developed including either customer-oriented CSR appeals, employee-oriented CSR appeals, environmental-oriented CSR appeals or philanthropic-oriented CSR appeals. Empirical findings suggest that the developed model is largely confirmed. Interestingly, results show that the liking of the CSR advertisements is not found to be a significant determinant of employees´ CSR evaluation. Instead, findings reveal that message credibility and perceived cause-company-fit are significant determinants of employees´ CSR evaluation. In addition, results indicate that the more employees perceive their organization as socially responsible, the more likely they feel satisfied to work for their company, the more likely they feel proud of being a member of this company and the more likely is their willingness to praise their company. This study contributes to the advancement of CSR research in several ways: First, the conceptualized model can be used to explain how CSR communication influences employees´ evaluation of the perceived organizational CSR engagement and how this relates to employees´ attitudes and behavior at the workplace. Second, by drawing on signaling theory (Rynes, 1991) and social identity theory (Ashforth & Mael, 1989) in order to explain CSR communication effects, this investigation adds theoretical foundation to CSR communication research. Third, the investigation demonstrates that CSR communication effects may go well beyond traditional effects such as fostering customers´ purchase. A company´s CSR communication is also able to influence favorable employees´ outcomes.