No organization exists without actors. organizations whether formal or informal are the way people coordinate their activities and collaborate. The dynamics of organizations are caused by the dynamics of its actors and the environment of the organization. In this paper we layout a generic framework for agent-based simulations that allows the modeller to simulate the extent to which agents are aware of the organizations they are part of and the extent to which the agents conform their behavior to the policies and norms of the organization. Furthermore, the framework allows agents to join or leave organizations and to take up or drop roles within the organization. We formulate the requirements for organization aware agent-based simulation, we provide a basic architecture in the agent-based simulation environment Brahms, and we illustrate the principles in a case study based on a partial MOISE+ specification of a soccer team.