Within the National Innovation System, universities play a key role as the main source of knowledge that supports national productivity and as a system that seeks to improve the competitiveness of firms competitiveness and to find answers concerning market needs in today's fast-changing and globalized economy.Innovation, as a source of competitiveness, is normally supported by a firm's technological capabilities: internal R&D, external collaborative agreements, and relationships with universities.This study uses a cluster analysis to identify three clusters that represent respectively those firms that interact closely with universities for technology development (which include R&D projects) and technological learning activities, those firms that interact with universities for technological learning only, and those that do not have any kind of relationship with universities.We also analyze the innovation performance of each cluster.Data here come from the Second Colombian Innovation Survey, which was applied in 2005 to a sample of 6,222 firms.Among the main results, this study shows a higher innovation performance for those firms with relevant linkages for technology learning activities.