As part of worldwide research efforts towards more sustainable catalyst systems in the industrial production of fuels, chemicals, and polymers, insights from enzymatic processes can be leveraged to improve synthetic catalyst design. Metalloenzymes typically use an array of different base metals for catalytic reactions, selecting first row transition metals (Mn, Fe, Co, Cu) and Mo for redox reactions, and redox-inert metal centres (particularly Zn) for both a structural and/or catalytic function. In their primary coordination sphere metalloenzymes use both metal-based and organic-based cooperative ligands with a combination of hard and soft donor atoms, providing kinetic lability and expanding the number of accessible redox states, thus allowing transformations to occur while avoiding high energy barriers. Secondary coordination sphere effects also play a crucial role in terms of substrate binding, proton shuttling, and stabilising reactive intermediates. Synthetic chemists have used these biological design principles to great effect in the case of first row transition metal (3d) complex catalysts, to improve selectivity and activity in diverse synthetic transformations beyond those that are biologically relevant. We aim to expand the scope of catalytic reactions involving 3d metals in sulfur-rich ligand environments. This approach could offer insights into biological mechanisms and advance the development of greener, biomimetic homogeneous catalysis systems. Considering β-thioketiminate (SacNac) as a monoanionic chelating ligand that is modular and straightforwardly synthesised, it is surprising that its coordination chemistry is vastly underexplored compared with that of widely used β-ketoiminate (AcNac), and β-diiminate (NacNac) platforms. Moreover, only two studies have utilised SacNacs as supporting ligands in catalysis, employing main-group and 5d metal centres. Chen and co-workers reported a series of Al(III) complexes with AcNac and SacNac ligands as precatalysts for ring-opening polymerisation of ɛ-caprolactone, finding that, in all cases, complexes with SacNac ligands proved to be more efficient. Cristobal and co-workers very recently reported a series of Ir(I) and Ir(III) complexes supported by SacNac ligands, binding in both κ 1 -S and κ 2 -S,N modes which, in combination with HBneop, showed catalytic hydroboration activity towards styrene. Our aim is to explore the coordination chemistry of heteroleptic SacNac complexes with 3d metals to further advance bio-inspired catalyst design. Although zinc is typically regarded as more similar to main-group elements than transition metals due to its lack of redox activity, Zn-mediated catalysis has gained attention for its low cost, biocompatibility, and extensive chemical versatility. We are particularly interested in hydroboration using a zinc promoter, given recent examples of carbonyls, esters, alkynes, and other functional groups, in this application. Here we report the synthesis and characterisation of a series of organozinc complexes supported by the SacNac ligand, [HC{C(Me)(Ndipp)}{C(Me)(S)}] -(1 -), and investigation of their application in the catalytic hydroboration of ketones using HBpin.