This chapter describes an ontology based competence management model that can be used to support distributed collaborative working and facilitate organisational leaning. The chapter begins by examining the concepts of collaborative working and organisational learning in the context of knowledge management and competence management systems. It describes the different forms of knowledge that can be represented in such systems and uses this to describe an ontology-driven approach to competence management. An outline design for an ontology-driven competence management system and the related content management approach is then outlined using material from earlier work on a group memory system; the competence ontology and expert annotation technique used in group memory system is described in detail. The chapter concludes with some discussion concerning the role of such systems in Knowledge intensive industries and some directions for future research.