About National Security Innovation Network NSIN is a program office in the U.S. Department of Defense (DoD), nested within the Defense Innovation Unit (DIU). We are set up to collaborate with a wide variety of innovators to include universities, researchers, students, entrepreneurs and start-ups. We create opportunities for collaboration across communities and connect those that might not traditionally work in national security. Together, we help drive national security innovation and develop technologies that directly support the individuals responsible for protecting our country. About the Defense Innovation Unit The Defense Innovation Unit (DIU) strengthens national security by accelerating the adoption of commercial technology in the Department of Defense and bolstering our allied and national security innovation bases. DIU partners with organizations across the DoD to rapidly prototype and field dual-use capabilities that solve operational challenges at speed and scale. With offices in Silicon Valley, Boston, Austin, Chicago and Washington, DC, DIU is the Department’s gateway to leading technology companies across the country.