In this research, the evolution of change in an organization, due to continuous changes in the market, is disclosed in a qualitative and quantitative way. The changes developed in the organizational structure were aimed at the search for a flexible, dynamic and agile organization, which would allow adapting to the demands of increasingly informed customers, this engine of change called customer required the company to develop a flexible organizational structure. For this, the key concepts were reviewed, such as: systems, processes, activities, modeling and the use of the Systems Dynamics tool for the elaboration of the causal diagram and flow diagram, which allowed to identify, analyze and evaluate the variables that affected each stage of organizational change. The evolution of the change that the organization developed was carried out in an unplanned sequential manner, in the following stages: first a vertical organization, second an organization by processes, third a focused organization, fourth a modular organization and later a flexible organization, which allowed adapt to changes in customer orders, orders that each time increased in the characteristics of the product model, but decreased in quantities. The changes developed by the organization allowed to increase the response speed in order delivery by 43%.