SPD Control Systems Corporation engages in the development, manufacture, and sale of electronic controllers and systems to control glass windows. The company provides window controllers, building energy management control systems, quality assurance test systems, and building monitoring systems. It also offers wireless building control systems, including wireless eight-window controllers; sensors for light level and motion detection; automatic tinting control algorithms; handheld wireless remote units for manually operated window tinting; connections to wired window tinting control wall switches; master building control system for commissioning and overall coordination; and wireless mesh network products. The company offers products to automotive, architectural, marine, and aerospace markets in the United States and internationally. SPD Control Systems Corporation was founded in 2005 and is based in Stony Brook, New York.