The problem of the study is the link between entitativity or perceived group integrity and organizational citizenship behavior (OCB). The purpose of the paper is to broaden the domain of personal psychological attachment to  organization from widely used constructs of organizational commitment and identification versus perceived integrity. In organizational settings there are two groups (or foci), which form strong personal attachments: the working team and the organization as a whole. These groups are also called foci of organizational identification. Entitativity and organizational identification were measured in both foci. «The Group Entitativity Measurer» (GEM) was used to measure both foci of integrity. Organizational identification with working team was measured with A Hierarchical (Multicomponent) Model of In-Group Identification adapted to Russian sample. We suppose that strong psychological attachments to group form behavior that is beneficial both for the employee and for the organization. This voluntary behavior is called Organizational Citizenship Behavior. The sample consists of factory workers (N = 124), mostly men from Vologda City of Russia. The perceived entitativity of the working team predicts identification with the organization as a whole (R2=0.07***) and with the working team (R2=0.18***). Significant relationships between OCB and perceived integrity of two foci were absent. Nevertheless some forms of organizational identification predict OCB. Emotional identification with organization as a whole predicts 3% of OCB variation.