Born globals (BG)’ post-entry evolution is a process characterized by superior growth opportunities, but also higher risks of failure. These concerns lead to the fundamental question regarding the factors that may play a role in BGs’ post-entry performance and survival. To provide a comprehensive picture on this issue, this paper critically examines 185 articles that have appeared in 39 academic journals over the past three decades. Drawing on complexity theory, we map a dynamic complex system comprising the interplay of six components relating to system inputs, managerial and firm-level capabilities – e.g., innovativeness, learning, and experience – , networks and system outputs – e.g., international growth and survival. Our review also suggests that strategic choices and orientations may act as change catalysts that bring BGs’ complex systems to the next stages of evolution, with further consequences on firm expansion. Our review contributes to the extant literature by taking stock of the present state of knowledge, and providing a taxonomy on the components of the dynamic system that influences the post-entry performance and survival of BGs. Furthermore, this paper and the resulting taxonomy unpacks the various sources of BGs’ heterogeneity, based on factors such as their different resources, capabilities, and strategies. In doing so, the paper uncovers significant gaps and contradictions in the literature, which opens important opportunities for future research. The paper concludes with a discussion of managerial and public policy implications.