The organisational learning literature has so far focused primarily on intraorganisational learning processes. However, during the last 10 years or so, a growing number of organisational learning studies have focused explicitly on interorganisational learning. So far this literature has concentrated on the requirements for such learning. Little attention has been devoted to examining the potentially unique dynamics of interorganisational learning processes. Consequently, few if any studies have examined whether interorganisational learning processes differ from traditional intraorganisational learning and, if so, in what respects. The purpose of this paper is to make an empirical comparison between intra- and interorganisational learning processes by drawing on a longitudinal qualitative case study of experiential learning processes within and between a business organisation and its partners, continued over a period of 3 years.