This paper aims to identify the conditions under which corporate social responsibility (CSR) affects employees' work-related attitudes. A meta-analysis of 42 studies published between 1999 and 2019 is elaborated considering the moderating effect of several contextual factors (country, industry, and national culture' values) and employees' demographic features (gender, age, education, tenure, and position) on the impact of perceived CSR on three work-related attitudes (organizational identification, commitment, and turnover intentions). The results reveal that the positive impact of CSR in employees' attitudes is not universal, it may vary due to the level of development and the national culture of the country where a company operates, the industry to which it belongs as well as employees' age and position. Furthermore, although individually some variables do not have a significant moderating effect, they are significant in combination with other variables, which opens new research avenues. The findings provide valuable help to human resource management policies.