ThayerMahan Inc.,* Groton, Connecticut, is awarded a $19,296,073 cost-plus-fixed-fee contract for Autonomous Mobile Maritime Systems for Tactical Surveillance, Undersea Warfare, and Subsea and Seabed Warfare. This contract provides for the development of specialized long endurance autonomous platforms, sensors, autonomous behaviors, signal processors, artificial intelligence and machine learning techniques, and improved endurance capacity. Work will be performed in Groton, Connecticut, and is expected to be completed in October 2027. The total cumulative value, including a 48-month base period with no option periods, is $19,296,073. Fiscal 2023 research, development, test and evaluation (Navy) funds in the amount of $100,000 are obligated at time of award and will not expire at the end of the current fiscal year. This contract was competitively procured under N00014-22-S-B001 entitled “Long Range Broad Agency Announcement (BAA) for Navy and Marine Corps Science and Technology.” Since proposals are received throughout the year under the Long Range BAA, the number of proposals received in response to the solicitation is unknown. Office of Naval Research, Arlington, Virginia, is the contracting activity (N00014-24-C-2202).