Cohort Plc is a holding company. Its business segments are Chess, EID, MASS, MCL and SEA. It provides a range of services and products for the United Kingdom, Portugal and international customers in defense and related markets. Chess Technologies, through its operating businesses Chess Dynamics and Visoin4ce offers systems and technologies for detecting, tracking, classifying and disrupting naval, land and air threats. EID designs and manufactures advanced communication systems for the global tactical and naval defense sector. MASS is a specialist defense and technology business, focused mainly on electronic warfare, information systems and cyber security. MCL designs sources and supports advanced communications and surveillance technology, for end users including the Ministry of Defense (MOD) and other government agencies. SEA delivers electronics systems and software products into the defense and transport markets and offers specialist research, training and product support.