Design-oriented IS research aims at delivering results which are of scientific rigor and of practical relevance at the same time. Recently, a number of guidelines have emerged helping researchers to do design-oriented IS research. However, these guidelines lack of supporting the researcher in gaining access to and capturing knowledge from the practitioner community. This paper proposes a method for Consortium Research, a multilateral form of collaborative research in which practitioners grant researchers access to their knowledge, collaborate in the specification of solutions, test artifacts in their business environments, and finance the research activities.