Immunodiagnostic Systems Holdings Plc engages in the development, manufacture, and marketing of in-vitro diagnostic tests (IVD) to the clinical laboratory market. It operates through the following business units: Automated IVD Business, Manual IVD Business, and Licensing and Technology. The Automated IVD Business unit offers an analyser which automates nearly all steps required for performing a test using their kits. The Manual IVD Business unit sells assay kits whereby the testing is performed by laboratory technicians. The Licensing and Technology unit monetizes the technology and know-how that the company owns through original equipment manufacturer partners. The company was founded in 1977 and is headquartered in Boldon, the United Kingdom.