Co-Ni-Ga alloys constitute a class of ferromagnetic shape memory alloys (SMAs) with high potential for damping application in elevated temperature regimes. In fact, Co-Ni-Ga shows excellent superelastic properties up to 500 °C and outstanding cyclic stability without any functional degradation up to 100 °C. However, these alloys suffer from premature failure due to crack formation along grain boundaries. Hence, a key criterion for enhanced functional performance is a microstructure avoiding grain constrains. Recently, a Co-Ni-Ga was succesfully processed for the first time by laser beam directed energy deposition (DED-LB/M). Due to a highly anisotropic microstructure revealing columnar grains with strong near-[001] texture, excellent SE properties could be revealed for the polycrystalline as-built condition at 100 °C under compressive loading. Additive manufacturing represents a new promising processing route and the result obtained merit further attention and further research in understanding the process-microstructure-property relationships. In this study, the influence of the powder feed rate on the solidification behavior and the martensitic transformation is investigated. For DED-LB/M, Co-Ni-Ga powder with a particle size range of 20-53 μm was used to process cuboidal structures. Optical as well scanning electron microscopy analysis including electron backscatter diffraction (EBSD) and energy dispersive X-ray spectroscopy (EDS) were performed on as-built, solution annealed as well as artificially aged samples to determine the microstructure and chemical composition. Employing differential scanning calorimetry (DSC), the characteristic transformation temperatures are assessed.