Attention for business resilience research in the academic world has increased considerably during the last decade looking at the number of papers published, despite fragmented literature on definitions, measurements and, and of variables influencing the concept. Therefore, there is a need to take stock of current knowledge on the areas and structure them to lay the foundation in this field. We also give due attention to the resilience of SMEs in a highly vulnerable setting (i.e., developing countries), as the nature of this settings requires resilience research attention (in terms of rate of recurrence and complexity of disruptions). We deployed a well-structured systematic search & review procedure. First, we defined key search terms and then applied them to multiple databases (Scopus, Web of Science, Google Scholar, Emerald, and Science Direct) to gather relevant papers for the review. To make our literature review more encompassing, we augmented the search process with co-citation and reference checking techniques. This paper offers (1) an overview of SMEs resilience literature from 2000 up to November 2018 comprising 118 articles, and (2) special attention, within that overview, to developing countries. This review concludes that resilience literature is very much varied in its definitions and measurements, and is inconclusive about its influencing factors. Furthermore, little resilience research has focused upon the context of SMEs in developing countries, which is perhaps surprising given the contribution made by these businesses in such a setting. On the bases of how the concept of resilience emerges from the literature, we describe distinguishing features of resilience, give options to extend the theoretical foundations of research into resilience and outline concrete ideas for further research. Moreover, we show that to date research on SMEs resilience in extremely vulnerable settings is lacking and we pointed to the interesting potential it holds for scholars and practitioners.