Gauge extensions of the Minimal Supersymmetric Standard Model are known to provide a method to increase the Higgs boson mass without having to resort to a very heavy stop sector. I will discuss aspects of the theory and phenomenology of a class of such extensions, focusing in particular on models with gauge mediated supersymmetry breaking, and the progress in developing tools that allow for their systematic study. I will moreover discuss some challenges in both the technical and the theoretical side as well as potential ways to overcome them.