Northstar Medical

NorthStar Medical Radioisotopes is a U.S.-based commercial-stage radiopharmaceutical company focused on the development, production, and commercialization of medical radioisotopes and radiopharmaceutical manufacturing services. The company produces key therapeutic isotopes such as actinium-225 and copper-67 and operates co-located isotope production and radiopharmaceutical CDMO capabilities on a single campus in Beloit, Wisconsin. NorthStar positions itself as a domestic supply-chain enabler for nuclear medicine, supporting drug developers with isotope supply, development, manufacturing, and final dose production. Its business is centered on improving access to radiopharmaceuticals used in cancer imaging and therapy, rather than advancing a broad proprietary clinical pipeline of its own. The company also collaborates with biotech partners developing targeted radiopharmaceuticals for oncology and other serious diseases.