IQE Plc is a holding company, which engages in the research, development and provision of engineering consultancy services to the compound semiconductor industry. It operates through the following segments: Wireless, Photonics, Infra Red, and CMOS++. The Wireless segment includes mobile smartphones, base station, mobile networks, Wi-Fi, smart metering, satellite navigation, and a plethora of other connected devices. The Photonics segment refers to devices that emit or detect light, such as advanced laser and sensors. The Infra Red segment supplies indium antimonide, and gallium antimonide wafers for advanced infrared technology, primarily see in the dark defence applications. The CMOS++ segment combines the advanced properties of compound semiconductors with silicon. The company was founded in 1988 and is headquartered in Cardiff, the United Kingdom.