Developing and representing “the interest” of one Land government on another level is essentially a coordination process. Coordination is needed vertically between the levels of government, horizontally between the different Länder and internally between the different departments of one Land. However, these processes have rarely been analyzed in depth. By integrating federalism and public administration research, a framework for analyzing coordination procedures between policy sectors and between governments is developed. Analyzing expert interviews conducted with civil servants from the representations in Berlin and Brussels, differences and similarities will be pointed out. It will be demonstrated that even though the coordination activities and partners vary, both representations work as a ‘control center’ in the very heart of government. They are able to identify room for maneuver and strategically assess policy solutions under the point of view of political feasibility and thus essentially contribute to an active role of the German subnational units within the multilevel system.