People Management in organizations has become a task in which an increasing number of variables are involved. For companies to act in competitive advantage it is important that they adopt specific strategies. The discretionary actions and gestures practiced by employees in organizations, which go beyond the tasks determined by the position and function in the company, are considered the Behavior of Organizational Citizenship (CCO – Comportamento de Cidadania Organizacional), which is the subject of this study. The objective is to know to what extent the five variables proposed by Organ (1988) were perceived and identified in the Mineral Resources Research Company (CPRM – Companhia de Pesquisa de Recursos Minerais), considering the opinion of its employees. The survey, a case study with a qualitative and quantitative approach, involved a universe of 1,704 employees, who received online forms containing 31 assertives based on the five variables of Organ (1988) and obtained 362 valid responses. The data collected were analyzed from a multiple linear regression model, which revealed the degree of influence of each of the five variables proposed by Organ (1988) in the CCO within the company. Such an analysis methodology applied to a federal public company could be replicated in other institutions for mapping and managing the factors that most impact the generation of a collaborative environment.