SI2 Technologies Inc.,* N. Billerica, Massachusetts, has been awarded a $13,156,924 cost-plus-fixed-fee Small Business Innovation Research Phase III contract for the research and development and prototype demonstration of low-cost sensing technologies. This effort will provide for the superior levels of performance necessary for long-endurance missions on attritable unmanned aerial systems, and includes the design, development, and symbiotic integration of subsystem elements. Work will be performed in N. Billerica, Massachusetts, and is expected to be completed by May 30, 2025. This award is the result of a sole-source acquisition. Fiscal 2021 research, development, test and evaluation funds in the amount of $4,500,000 are being obligated at the time of award. The Air Force Research Lab, Wright-Patterson Air Force Base, Ohio, is the contracting activity (FA8650-21-C-1003).