Star Equity Holdings, Inc. provides healthcare solutions in the United States and internationally. It operates through four segments: Diagnostic Services, Diagnostic Imaging, Construction, and Investments. It offers imaging services primarily to cardiologists, internal medicine physicians, and family practice doctors and imaging systems, including nuclear cardiac and general purpose nuclear imaging systems to physician offices and hospitals. The company also develops, sells, and maintains solid-state gamma cameras and provides camera maintenance contract services. In addition, it manufactures modular housing units, structural wall panels, permanent wood foundation systems, and other engineered wood products supplies general contractors with building materials holds real estate assets and manages investments. The company was formerly known as Digirad Corporation and changed its name to Star Equity Holdings, Inc. in December 2020. Star Equity Holdings, Inc. was founded in 1985 and is headquartered in Old Greenwich, Connecticut.