In recent years CSR activities have received a lot of attention as a means to enhance companies' sustainable growth. At the same time, employees are recognized as important stakeholders for sustainable growth for the corporation. This study empirically examined the interrelations among CSR activities, employees' perceptions of and attitudes toward the CSR activities, corporate reputation, internal marketing factors (internal communication, reward system, empowerment, relationship with the boss, education/training), and job satisfaction using a structural equation model. This study also compared the sample companies based on their investment in CSR (above or below about 10 million US dollars) in terms of the employees' attitudes toward all the variables mentioned above. The results showed that employees' perceptions of and attitudes toward CSR activities positively affected the internal marketing factors indirectly through corporate reputation. In addition, reward system, relationship with the boss, and empowerment positively affected job satisfaction. The results suggests that building a long term image of a good corporate citizen through CSR activities can be a great strategic tool for internal marketing. Also, our study suggests that the reward system, relationship with the boss, and empowerment are important internal marketing factors to enhance job satisfaction. Theoretical and practical implications of the results are offered.