Due to the increasing in life expectancy, nowadays many generations share the work space. Recently, with the entrance of a new generation, four generations may work in the same company. Understanding which values, expectancies and how do we raise and keep this new generation’s (generation Y) commitment is important so that companies can reach their mission and goals. The more committed employees are the harder they try to accomplish their tasks and contribute to the company’s goals. Based on that this research project intend to understand on what grounds the generation Y’s commitment is built. For doing so individuals belonging to this specific generation wire pooled about questions related to their commitment to a public company. The questions were written based on the EBACO scale (basis scale of organizational commitment). This scale measures seven basis for commitment: affective; obligation to stay; obligation to performance; affiliative; lack of rewards and opportunities; consistent line of activity and a scarceness of alternatives. As a result, it was possible to see that individuals belonging to generation Y in the company where the research was conducted tend to be more committed on the affective and obligation to performance basis. On basis like a consistent line of activities and lack of reward the level of commitment reached below the average in EBACO’s scale patterns. The basis obligation in staying, scarceness of alternatives and affiliative were the basis where the commitment reached its lowest level.