This essay analyses the cultural management along the organization life cycle. With this purpose, a case study was developed based on the research of the company ENSR Brasil - ENSR International Brasil Ltda., which was established in Brazil in 1998. Based on a qualitative analysis, this works evaluates the evolution of ENSR Brasil`s organizational cultural in its different evolution stages. Additionally, by applying models and typologies identified in the literature, it analyses the process of cultural change established in the company from 2006 on, after a more direct and effective influence of the American head office was instituted. The result of this study reinforces the literature about the subject related to the strong correlation between culture and life cycle, pointing out the importance of variables such as power structure and the decision process in the management of the organizational change.