The success of the IoT is inextricably linked to the balanced interplay of technological, organisational and economical interdependencies that occur in the cyber physical IoT ecosystem. De-spite growing scientific interest, recent literature lags behind cumulativeness and focuses on individual constitutions of the IoT rather than on a comprehensive and coherent understanding. To better position the IoT as a whole - that is more than the sum of its parts - we take an ecosystemic perspective on the phenome and systematically identify and analyse a collection of 70 relevant publications on the IoT ecosystem. We intend to give the first comprehensive overview of the ecosystem construct in the IoT, including a systematization of the existing literature and thus contribute to the synthesis of prior fragmented literature. Drawing on an ecosystem view we aim to reveal research avenues for the IS community that none of the IoT’ s individual constitutions can provide