Current status of Dark matter searches at LHC (Non SUSY)

This talk aims to provide an overview of the theoretical framework, the search strategies and the current status of the results of Dark Matter searches at the LHC. The focus will be restricted to mediator-based Dark Matter models (non-SUSY). Experimental analyses and results will be presented on a selection of the models, using up to 150 ifb of s√=13 TeV pp collision data collected by the ATLAS and CMS experiments at the LHC.