Ultra Electronics Holdings plc designs, develops, and manufactures electronic systems for the defense, security, transport, and energy markets worldwide. Its Aircraft and Vehicle Systems division offers airframe ice protection systems, active noise and vibration control, aircraft system electronics and test equipment, temperature sensors, cockpit equipment, airframe fatigue monitoring systems, human-machine interface equipment for unmanned aerial vehicles, airborne compressors, pneumatic equipment and systems, card systems, and consultancy and system solutions. The companys Information and Power Systems division provides combat, specialist naval electronic, electro optic, nuclear reactor control and instrumentation, software-based data fusion, airport and airline management, command and control, information, and pressure transmission and fiber optic networking systems, as well as systems stabilized and servo-assisted platforms, incident management networks, integrated crisis management solutions, and nuclear qualified temperature sensors. This division also offers power, signature management and control, gas turbine electric start, and gas turbine regeneration systems, as well as transit system power equipment and nuclear reactor electric power drives. Its Tactical and Sonar Systems division provides data link, cryptographic, battlespace visualization, data recording and analysis, and radio and communication systems; airborne targeting pods and loitering munitions; and network communications, secure/non-secure video, electronic warfare, submarine communications, and magneto inductive communications equipment. This division also offers airborne acoustic detection, torpedo defense and acoustic warfare, mine disposal, sonar, gunshot detection, and structural integrity monitoring systems, as well as long range acoustic hailing and mass notification devices, and personal voice and data communications equipment. The company is based in Greenford, the United Kingdom