The purpose of this study is to describe and analyze the factors that influence the relationships between volunteer workers in a Third Sector Education Institution. The survey counted on 12 interviewed of 41 total volunteers, distributed by different areas of action in the College. The research method used was the qualitative study, through interviews with depth, with exploratory characteristic, using a semi-structured script to guide the interview. The analysis was divided into two areas: motivation and individual integration. The emerging themes were insertion in the labor market, the organization s vision, self-realization and ambience; the feelings awakened as love were decisive for the bonding process of the volunteers. Regarding the integration of the individual, what the organization adds to his life or day to day, from the analysis were raised the themes of personal growth and professional growth, important factors for the definition of the type of organizational bonding of the Teaching Institution. From this analysis it can be concluded that the factors are associated with affective commitment and the organizational identification of employees.