Pseudoelastic Co-Ni-Ga-type ferromagnetic high temperature shape memory alloys (FM HTSMAs) are characterized by a wide range of tunable transformation temperatures and lower processing costs compared to conventional NiTiX HTSMAs which renders them useful for high temperature applications in the automotive and aerospace industry. The pseudoelastic effect is usually stress induced but can also be controlled by a magnetic field over a strain-range of 4.5 % in Co-Ni-Ga FM HTSMAs. Despite the materials relevance for future applications, its magnetic space group, distribution of atomic species in the structure and the amount of chemical ordering have not been determined yet.