Studsvik AB (publ), a Swedish company founded in 1947 and based in Nyköping, provides specialized technical solutions and services to the global nuclear and radiological industries. Its reach extends across Sweden, the rest of Europe, Asia, and North America. The company's offerings include expert engineering and consulting, comprehensive testing of nuclear fuels and materials, and advanced software for managing fuel and reactor operations. Studsvik is also deeply involved in the lifecycle management of nuclear and radioactive hazards, which encompasses designing processes for radioactive waste management and handling nuclear decommissioning projects. Additionally, they supply isotopes for various medical and industrial uses. Specific services within their fuel and materials technology division feature fuel qualification, plant life extension management, hot cell technology, research for final waste storage, and the safe transportation of irradiated materials. Their product portfolio includes innovative equipment such as the Excavator Mounted Bucket Assay System, used for determining the radiological content of excavator buckets, and waste treatment technologies like Freeze-Tec and Fluid Bed Steam Reforming. Studsvik is also a leading developer of sophisticated nuclear physics software. This includes lattice physics codes like CASMO5 (for PWR and BWR fuel modeling) and HELIOS-2, as well as 3D multi-group nodal codes such as SIMULATE5 and SIMULATE-3K for analyzing PWRs and BWRs. Further software solutions cover graphical fuel management and loading pattern optimization (XIMAGE), cycle-specific core modeling for training simulators (S3R), online core monitoring with reactivity management tools (GARDEL), planning and optimization of BWR fuel shuffles (MARLA), and calculating isotopic concentrations, radiation source terms, and decay heat for spent PWR and BWR fuel (SNF). The company adopted its current name, Studsvik AB (publ), in 1987, having previously operated as Studsvik Energiteknik AB.