Special Devices, Inc. is a Delaware-based designer and manufacturer of precision-engineered energetic devices for automotive safety systems, defense and aerospace ordnance, and mining and blasting applications. Founded in the late 1950s and headquartered in Moorpark, California, the company makes initiators, gas generators, detonators, explosive bolts, cutters, actuators, valves, safe-and-arm devices, and electronic ignition modules. It employed about 584 workers and operated in Thailand, Germany, and Japan.