Quantum Research Group Ltd. was a pioneering fabless semiconductor company founded in 2002, headquartered in Hamble, Southampton, UK. The company specialized in capacitive touch sensing and proximity detection solutions, introducing innovative charge-transfer sensing technology. Its core product line was the QT series, including families such as QT100, QT200, QT300, and QT500, offering touch sensor ICs and controllers for buttons, sliders, wheels, and touchscreens. The company's technology enabled reliable touch detection through various non-conductive materials, making it ideal for consumer electronics, home appliances, automotive panels, and industrial controls. Quantum Research Group quickly gained recognition for delivering robust, cost-effective, and space-saving touch interfaces. In 2008, the company was acquired by Atmel Corporation, and its technology evolved into Atmel's QTouch product line. Following Atmel's acquisition by Microchip Technology in 2016, the touch heritage continues within Microchip's mTouch and QTouch platforms. The company's innovations have powered touch interfaces in millions of devices worldwide, shaping modern human-machine interaction.