Virtual organisations (VOs) in manufacturing represent a promising approach for dealing with today's difficult markets. The selection of the right partners during the creation phase is a prerequisite for their success. Owing to the complexity of the underlying networks as well as the need to react immediately to market opportunities, tool support is necessary for finding a suitable consortia for a given business purpose while reducing the immanent risk of failure. The purpose of this paper is to exemplify the conception and realisation of such a tool.