Organizations normally begin using Enterprise Modeling (EM) within the context of a development project of some sort, where an outside vendor and/or consultant provide the method and related IT tool usage competence. If an organization uses EM sufficiently frequently it may be motivated to develop in-house EM competence and to acquire and adopt an EM method. The paper is an experience paper. It defines what it means to adopt an EM method in an organization and describes the process of adopting and institutionalizing EM as an organizational strategy to support continuous improvement and development. The process consists of three activities: deciding that an EM method should be adopted as part of the organization’s set of institutionalized methods, electing a suitable method and implementing the method.