The authors of this paper introduce three customer demographic features (age, gender, and educational level) and three psychological traits (support, collectivism, and novelty seeking) as moderators in a classic model to better explain the formation process of corporate social responsibility (CSR) perceptions. The results of the paper can assist CSR and marketing practitioners in better segmenting the market in order to adapt their CSR and communication strategies and make them more effective. The authors test a causal model that allows them to anticipate CSR perceptions based on customer evaluations of (1) the congruence between the company and its CSR strategy, (2) the motivations of the company to implement CSR activities, and (3) the corporate credibility in developing CSR programs. Results suggest that customer psychological features are more effective for marketing segmentation than demographic features because they explain more differences among customers in the formation of CSR perceptions. CSR support and novelty seeking are the most valuable characteristics that can be applied to marketing segmentation.