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SDI is a Small Business (SB) founded in 1979 that provides high technology engineering services to the US Army, US Air Force, USMC, US Navy, and the Australian Defense Force. Members of our management team have held key civil service and military positions in major defense programs, so we understand exactly how to best support our government customers. Our 15,000 ft.² facility in the Cummings Research Park in Huntsville, AL includes laboratory and service bay capabilities for engineering, prototyping, and small scale, high tech manufacturing.  SDI’s highly skilled work force provides our customers with unparalleled technical support for aviation and missile systems critical to the Warfighter.