A large part of the literature from industrial organization and management expects that, compared with unrelated M&As, related M&As show superior economic performance because of synergetic effects that follow from economies of scale and scope. The current contribution takes the debate on the effect of different M&As somewhat further by studying the effect of M&As on the technological performance of companies. In this study the technological performance of M&As is related to a high-tech sector, i.e. the international computer industry. The main result of this research is that the so-called strategic and organizational fit between companies involved in M&As seem to play an important role in improving the technological performance of companies.