The outsourcing of knowledge processes has become a popularbusiness practice. This situation provides both new opportunities and threats forfirms’ and their development. In this context, it would be interesting to discussthe link between knowledge process outsourcing (KPO) and sustainableorganisations that pursue not only economic issues but also social andenvironmental ones. Against this background, the purpose of this paper is toreview extant research on KPO and bring it together with the concept ofsustainable organisations. To do so, the paper relied on a combination of recentreviews of scholarly papers on KPO. This proceeding enabled the identificationof three main conditions that need to be fulfilled in order to increase the successof the integration of the two terms. The conditions are governance, partnershipand organisation members. The recommendations derived from the findingscan assist researchers and other actors in better understanding the requirementsof KPO for sustainable organisations.