The ability to selectively functionalise C–H bonds can streamline molecular synthesis by enabling the direct transformation of simple chemical building blocks into more complex molecules. Catalysts based on Group-9 transition metals (including cyclopentadienyl-derived cobalt, rhodium, and iridium complexes) provide a versatile platform for achieving diverse C–H functionalisation reactions. This presentation will describe the development of new catalytic systems based on Group-9 metal complexes that enable the formation of both C–C and C–N bonds via C-H functionalisation pathways.1-3 These studies encompass the design and evaluation of ligand systems that can enhance both reactivity and selectivity in a variety of synthetic transformations.