This document summarizes the results of an inventory study of services for cluster organizations in Europe. It discusses the approach taken, which was to learn from international experts and identify opportunities for cooperation. Seventeen organizations across eight categories of cluster services were explored. Key lessons included tailoring services to regional characteristics and clusters. For Flanders, ideas for new services generated included supporting sustainable business models, branding, training, and promotional materials for clusters. A full report on the inventory of European cluster organization services will be available by the end of the year.