Based in the Paris area in France, Spin-Ion Technologies provides He+ ion beam systems with processes to tailor magnetic materials. The key feature of the technology is the post-growth control at the atomic scale of structural properties including interface intermixing, chemical order or crystallization. As state of the art, this technology can be used to control magnetic properties of ultra-thin spintronic materials for applications to MRAM, Hard Disk Drive, Racetrack memory devices, magnonics, RF systems, spin logic, sensors or neuromorphic computing.