ScandiDos AB (publ) engages in the provision of measurement systems and software designed for the QA and validation of new dynamic and modulated treatments implemented in clinics worldwide. It offers Delta4 Discover and Delta4 Phantom+ for the QA of advanced radiation therapy procedures such as VMAT, RapidArc, IMRT, and Tomotherapy. The company was incorporated in 2001 and is headquartered in Uppsala, Sweden.