The long-term goal of the research line that we pursue is the development of light-tunable organometallic compounds, for a wide range of applications, being catalysis the main focuss. After some initial explorative years, we have a set of synthetic tools to readily incorporate azobenzene derivatives in a wide range of compounds, and we are expanding them to the synthesis of DTE-based photoswitches. Along these years we have synthesized more than 60 new azobenzene-appended organometallic complexes, and studied them for several applications: iridium(III) triscyclometalated for phosphors in OLEDs, ruthenium(II) and iridium(III) half-sandwich complexes to be used as photoswitchable catalysts, or ruthenium(II) compounds as metalodrugs for cancer therapy are the first examples we worked on. Our current challenge is the development of a new generation of compounds displaying photo-induced chirality. Expanding the range of compounds, and applications together with gaining a better understanding and control of their interaction with light is our daily task that should bring us through a path of amazing discoveries.