Plessey Semiconductors Ltd Employee Directory
Appliances, Electrical, and Electronics ManufacturingEngland, United Kingdom201-500 Employees
Plessey Semiconductors Ltd. is a mid-sized UK-based developer of optoelectronic technology solutions. It focuses on high-volume production using a proprietary gallium nitride on silicon platform implemented in a single monolithic process for microLED display technologies. The company operates 150mm and 200mm wafer processing facilities to design, test, and assemble products, supported by photonic characterization and applications laboratories. Headquartered in Plymouth, England, the business serves customers seeking scalable microLED displays and related optoelectronic components. In August 2025, the company was acquired by Haylo Ventures Limited.