This essay focuses on analyzing the cultural management through the organization life cycle. To reach this goal a thorough research was conducted involving a case study of TIM Brasil - Telecom Itália Mobile Brasil, a company of the Brazilian telecommunications market, created in 2002. On the basis of a qualitative analysis, in this work was analyzed the positioning of the TIM Brasil in its different phases of life according to some cultural typologies identified in literature, and salient the paper of the market and the customers to the long ones of this process. The result of this study strengthens literature on the referring subject in the question of the strong correlation between culture and cycle of life, evidencing the importance of some variable as: process of communication, power structure and decision process in the management of the organizational change.