The crowdsourcing of inventive activities (CIA) consists in externalizing to a crowd, research activities and/or complex and creative tasks. Several recent examples stressed the advantages of this type of practice both in order to reduce the costs of the innovation process and to improve its results. In the present paper we study the organizational impact of CIA based on the theories of the boundaries of organizations. The literature identifies four different boundaries: Efficiency, influence, competence and identity boundaries. This analysis in terms of boundary of organizations makes it possible, among others, to identify some limitations of the use of CIA and to devise theoretical predictions on its emergence and conditions of utilization.