Team building training is one form of organizational intervention in managing team performance among its members. Good team-building training is marked by the achievement of an organization in forming a solid team. Team integrity is then predicted to have a positive influence on employee commitment to work and to the organization. The purpose of this study was to determine whether team building training influenced team cohesiveness, and employee commitment to work and to the organization. In addition, the team's mediation role is also traced to the influence between team building training and both types of commitment. As an additional analysis, this study also explores differences in team cohesion, commitment to work, and organizational commitment to employees who have participated in team building training, and who have not participated in similar training. The study was conducted on a number of 55 employees at an international company located in Kudus, Central Java, Indonesia. The results showed that the training of team building as independent variable does have an effect on the commitment of employees to their work and to the organization. However, the hypothesis that team building training influenced team cohorts did not seem to be supported in this study. Then, the hypothesis that defines the differences between employees who have never been to and have not participated in team building training is also not fully supported.